According to customer specifications, we supply highly developed ceramic balls & ceramic bearings made of silicon nitride, zirconium oxide, aluminum oxide, silicon carbide, Ruby or Sapphire with a quality up to Grade 3 with standard and special diameters. We have an experienced consulting team to assist with your specific requirements, advise you and work with you and our suppliers to provide the optimal cost-effective solution for your demanding applications.

High-quality ceramic precision balls are balls made of various ceramic materials, which have high wear resistance, temperature resistance, hardness and corrosion resistance. They are used as rolling elements in bearings, valves, pumps or other applications that require high accuracy and reliability. There are different types of ceramic balls, such as zirconium oxide (ZrO₂), silicon nitride (Si₃N₄), aluminum oxide (Al₂O₃), sapphire or ruby.

Ceramic balls have many applications in various industries and areas. Some examples include: high-precision bearings, ball screws, spindles, vacuum pumps and other mechanical components in the automotive, aerospace, marine and electronics industries. Deburring of surfaces, grinding of powders, pigments, paints, varnishes and other materials in the ceramic, glass, chemical and pharmaceutical industries. Electrical switches, sensors, measuring instruments, medical devices, prostheses and other applications that require high electrical, thermal or biological resistance.

Ceramic balls have some advantages over steel balls, such as:

- Lower density and higher hardness, resulting in a smaller contact area, less friction, higher rotation speeds and less energy loss.

- High wear resistance, temperature resistance and corrosion resistance, resulting in longer bearing and lubricant life.

- Lower rolling resistance and heat generation, resulting in better performance and efficiency.

. Characteristics

- Inert and highly resistant to aggressive media

- Excellent thermal conductivity (especially in cryogenic temperatures)

- Also excellent heat resistance and resistance to thermal shocks

- Brilliant scratch and abrasion resistance

- Best corrosion and abrasion resistance

- Extreme hardness (the hardest material after diamond!)

- Best electrical properties (high electrical resistance, large dielectric constant)

. back

. Silicon nitride balls (Si₃N₄)

Compared to steel balls, Si 3 N 4 balls offers the following advantages:

- 59% lighter than steel balls, resulting in less centrifugal force and less wear on the tread at high speed and acceleration.
- 44% greater elastic modulus, meaning less deformation under load.
- Harder than steel with a Rockwell hardness of 78.
- Smaller coefficient of friction.
- Only 1/4 of the thermal expansion coefficient of steel, can withstand severe temperature fluctuations.
- An excellent surface finish can be achieved, Ra 0.004 to 0.006 µm is possible.
- Withstands high temperatures with high hardness and strength up to 1050°C.
- Corrosion and lubricant free
- Free from metal contamination
- Non-magnetic
- Electrically insulating
- No fretting corrosion

All of the above combinations make Si 3 N 4 the first choice for highly stressed bearing ball material and valve ball.

. Application:

Si₃N₄ balls can be used in all bearings with particularly high requirements: high-speed bearings, high-precision bearings; vacuum bearings; High/low temperature bearings, non-magnetic bearings, high precision ball screws. The Si₃N₄ ball can be used as a valve ball and metering ball in chemical pumps, high temperature pumps and metering pumps. Si₃N₄ balls can be used in linear sliders for high temperature and corrosion resistance. Si₃N₄ balls are generally used in bearings for applications in aerospace, defense, automotive, chemical, metallurgy, medical, food and beverage, oil equipment, energy and environmental, electronics, research and development, etc .

Notes:
Black color as standard, gray color can be supplied as customer's request.
Balls made of hot isostatically pressed (HIP) Si₃N₄ can be supplied.

. Technical characteristics:

. Chemical formula: Si₃N₄

. Structure Type: Siliziumnitride

. Apparent porosity, %: 0.5>

. Density, g/cm³: 3,23

. Melting point, °C: 1900

. Coefficient of thermal expansion, x10^-6/K: 3,4

. Thermal shock resistance ΔT: 650 °C

. Thermal conductivity, W/m·K: 16

. Solubility in water: none

. Hardness, Gpa: 16,2

. Elastic modulus E, GPa: 300

. Fracture toughness, Mpa√m: 6,0

. Modulus of rupture, MPa: 980

. Poisson's constant: 0,29

Technical specifications

. back

. Zirconium oxide balls (ZrO₂)

Compared to steel balls, ZrO₂ balls offer the following advantages:

- 23% lighter than steel balls, resulting in less centrifugal force and less wear on the tread at high speed and acceleration.
- Lower coefficient of friction ,freer rolling.
- Can be used at higher temperatures up to 750°C.
- Corrosion and lubricant free
- Diamagnetic
- Electrically insulating.

. Application:

ZrO₂ balls are mainly used for valve balls, all-ceramic bearings, metering balls, trackballs and precision grinding balls. They can be used in areas requiring chemical resistance, high temperatures, electrical insulation, magnetic insulation and non-lubrication. ZrO₂ balls are an ideal replacement for steel balls in chemical corrosion applications. The ZrO₂ ball is now successfully used as a valve ball in high-pressure homogenizers, diaphragm pumps, metering pumps, oil well pumps, high-pressure sprayers, etc.

Notes:
Standard color white
The thermal expansion coefficient of ZrO₂ is 10,5*10-6/°C, similar to that of steel, so ZrO₂ goes well with metal. However, larger temperature fluctuations result in larger size changes. It is very resistant to acids and alkaline solutions.

. Technical characteristics:

. Chemical formula: ZrO₂

. Structure Type:  Zirconia

. Apparent porosity, %: 0.5>

. Density, g/cm³: 6,05

. Melting point, °C: 2.715

. Coefficient of thermal expansion, x10^-6/K: 10,5

. Electrical resistance, Ω·cm: (200 °C, 50 °C) 10¹²

. Dielectric constant, 1 MHz: 15.0

. Thermal conductivity, W/m·K: 3,8

. Solubility in water: keine

. Hardness, Gpa: 12,3

. Elastic modulus E, GPa: 205

. Fracture toughness, Mpa√m: 6,0

. Modulus of rupture, MPa: 1080

. Poisson's constant : 0,31

Technical specifications

. back

. Aluminum oxide balls 99,5% (AL₂O₃)

Compared to steel balls AL₂O₃ balls offer the following advantages:

- 50% lighter than steel balls, resulting in less centrifugal force and less wear on the tread at high speed and acceleration.
- Lower coefficient of friction, freer rolling.
- Can be used at higher temperatures up to 1750°C.
- Corrosion and lubricant free
- Non-magnetic.
- Electrically insulating.

. Application:

AL₂O₃ ball is wear resistant, heat-resistant, antioxidant, bioinert and food-safe. A feature of the AL₂O₃ ball is, that its size remains unchanged up to 1100 °C. AL₂O₃ balls balls are mainly used for pumps, valves and flow meters.

Notes:
Al2O3 ball is not suitable for use in hydrochloric acid, HF acid and strong alkalis.

. Technical characteristics:

. Chemical formula: AL₂O₃

. Structure Type:  ALUMINIUM OXID

. Apparent porosity, %: 0.5>

. Density, g/cm³: 3,90

. Melting point, °C: 2.072

. Thermal expansion coefficient, x10^-6/K: 8,2

. Electrical resistance, Ω·cm: 500 °C 10⁸ , 20 °C 10¹²

. Dielectric constant, 1 MHz: 10.0

. Solubility in water: keine

. Hardness, Gpa: 15,7

. Elastic modulus E, GPa: 365

. Fracture toughness, Mpa√m: 6,0

. modulus of rupture, MPa: 500

. Poisson's constant: 0,31

Technical specifications

. back

. Ruby balls

Ruby balls are made of synthetic ruby and have high hardness, corrosion resistance and temperature resistance. They are used in applications that require high precision and wear resistance. Compared to steel balls, ruby ball offers the following advantages:

- Lighter than steel balls and therefore less centrifugal force and less wear on the tread at high speed and acceleration.
- Lower coefficient of friction, freer rolling.
- Ruby has a hardness of 9 on the Mohs-scale, which is harder than steel (7) or ceramic (8).
- Can be used at higher temperatures up to 2050°C.
- Corrosion and lubricant free
- Non-magnetic.
- Electrically insulating.

In summary, Ruby Spheres are a valuable tool for a variety of applications. They offer a number of advantages over other materials, such as: B. steel or ceramic. The advantages of ruby spheres over other materials lie in their high hardness, wear resistance and corrosion resistance. Ruby is harder than steel and can therefore also be used under high loads. It is also highly resistant to wear and corrosion, resulting in a long service life.

. Application:

Ruby balls are used in applications that require high precision and wear resistance, such as bearings, pumps, valves and gauges. They are also more resistant to high temperatures and can be used in applications that are exposed to high temperatures. Optical applications for precision ruby spheres and hemispheres include: lenses, optical fibers, barcode readers, medical devices. They are used in applications that require high precision and wear resistance, such as bearings, pumps, valves and measuring devices.

. Technical characteristics:

. Physical Properties:

- Crystalline structure: rhomboerdral hexagonal

- Composition:  AL₂O₃

- Purity: 99,99 %

- Major impurities: Na20,Si, Ca, Fe, Ga, Mg, Ti, Mn, Pb, Cu, Zn, Ni

- Density, g/cm³: 3,99 – 9,98

- Dislocation density: 10⁹ – 10⁸ /m2

. Thermal properties:

- Melting point: 2320 K

- Softening point: 2070 K

- Specific heat: 7,5 · 10² j/kg ·K at 300 K

- Thermal conductivity: 40 W / m · K ┴ at 300 K

- Thermal expansion: 6,2 · 10^-6 /K // C-axis
                                   5,4 · 10^-6 /K // C-axis

. Mechanical properties:

- Hardness: Mohs 9
             Knoop 2200 face // C-axis
             Knoop 1800 face ┴ C-axis

- Modulus of elasticity: 4,4 · 10¹¹ Pa at 300 K

- Use modulus: 4,0 · 10⁸ Pa at 300 K

- Compressive strength: 2,1 · 10⁹ Pa at 300 K

- Tensile strength: 1,9 · 10⁸ Pa at 300 K

- Poisson's constant: 0,30

. Chemical properties:

- Attack by acids and alkalis: the following acids and alkalis can attack synthetic ruby: strong acids such as hydrochloric acid (HCl), sulfuric acid (H₂SO₄), phosphoric acid (H₃PO₄) and strong alkalis such as caustic soda (NaOH), potassium hydroxide ( KOH), calcium hydroxide (Ca(OH)₂)

- Porosity, %: 0

. Electrical Properties:

- Dielectric constant: 10.6 electric field // C-axis at 300 K
                                            8.6 electric field ┴ C-axis at 300 K

- Electrical resistance: 10⁹ Ω · m at 770 K
                                           10⁴ Ω · m at 1270 K
                                           10 Ω · m at 2270 K

Technical specifications

. back

. Sapphire balls

Sapphire balls are made of synthetic sapphire and have high hardness, corrosion resistance and temperature resistance. Precision sapphire spheres are a valuable tool for industry. They offer a number of advantages that make them suitable for a wide range of applications. They are used in applications that require high precision and wear resistance . Compared to steel balls, sapphire ball offers the following advantages:

- Lighter than steel balls and therefore less centrifugal force and less wear on the tread at high speed and acceleration.
- Lower coefficient of friction, freer rolling
- Can be used at higher temperatures up to 1800°C.
- Acid-insoluble
- Corrosion and lubricant-free
- Diamagnetic
- Electrically insulating

Precision sapphire spheres are a valuable tool for industry. They offer a number of advantages that make them suitable for a wide range of applications. The main advantages of precision sapphire balls in industry are: High hardness, wear resistance, corrosion resistance, low coefficient of friction & high temperature resistance.

. Application::

Sapphire balls are used in applications that require high precision and wear resistance, such as bearings, pumps, valves and gauges. Compared to steel balls, sapphire balls are more resistant to corrosion and wear. They are also more resistant to high temperatures and can be used in applications that are exposed to high temperatures. Sapphire spheres also have excellent optical properties. Optical applications for precision sapphire spheres and hemispheres include: lenses, optical fibers, barcode readers, medical devices. They are used in applications that require high precision and wear resistance, such as bearings, pumps, valves and measuring devices.

. Technical characteristics:

. Physical Properties:

- Crystalline structure: rhomboerdral hexagonal

- Composition:  AL₂O₃

- Purity: 99,99 %

- Density, g/cm³: 3,95 – 4,03

. Thermal properties:

- Melting point: 2.050 °C

- Softening point: 2070 °C

- Specific heat: 7,54 J/g·K

- Thermal conductivity: 40 W / (m · K)

- Thermal expansion: 0,55 - 0,60 ppm/K

. Mechanical properties:

- Hardness: Mohs 9

- Modulus of elasticity: 4,4 · 10¹¹ Pa at 300 K

- Modulus of rupture: 420 - 440 GPa

- Compressive strength: etwa 2 GPa

- Tensile strength: 186,4 MPa

- Poisson's constant: 0,17

. Chemical properties:

- Attack by acids and alkalis: resistant for short exposure times, but damage can occur with longer exposure times

- Porosity, %: 0

. Electrical Properties:

- Dielectric constant: 9 - 11,5

- Electrical resistance: 10¹² - 10¹⁶ Ω · cm ²

Technische Spezifikationen

. back

. back

. useful information 

Abrasion resistance of ceramic balls is influenced by a number of factors, including:

- Type of ceramic: Some types of ceramic are more abrasion resistant than others. For example, silicon nitride (Si₃N₄) is more abrasion resistant than aluminum oxide (Al₂O₃).
- Ball size: Smaller balls are generally more abrasion resistant than larger balls.
- Surface condition of the balls: A smooth surface is generally more abrasion-resistant than a rough surface.
- Load on the balls: A higher load leads to higher abrasion.

Ceramic balls are generally very resistant to abrasion. This is because ceramics are usually very hard. The hardness of ceramics is measured on the Mohs scale, with 1 being the softest and 10 being the hardest material. Most ceramic balls have a Mohs hardness of 8 or higher, meaning they are harder than most metals. Ceramic balls are often used in applications where abrasion is a concern e.g. B. Wear parts, abrasives & precision devices. Ceramic balls are a good choice for applications where abrasion is a concern. They are typically more abrasion resistant than metals and other materials and offer a number of benefits including long life, corrosion resistance and low maintenance.

Aluminum oxide also known as alumina or alumina, is an inorganic compound with the chemical formula AL₂O₃ and is considered the most commonly used high-performance ceramic material. Aluminum oxide has excellent electrical insulation and excellent sliding properties. Alumina balls are made from a variety of raw materials including alumina powder, alumina granules and alumina paste. The raw materials are sintered under high temperatures and pressure to obtain the spherical shape. Alumina balls have a number of properties that make them suitable for a wide range of applications including:

- Hardness: Alumina balls are very hard and have a Mohs hardness of 9. This makes them a very wear resistant material.
- Corrosion Resistance: Aluminum oxide balls are highly resistant to corrosion and can withstand a wide range of chemicals and environments.
- Frictional Resistance: Alumina balls have low frictional resistance, making them an ideal material for applications where friction must be minimized.
- Temperature resistance: Aluminum oxide balls have a high melting temperature of 2,050°C, making them suitable for applications where they are exposed to high temperatures.

Alumina balls are a versatile and durable material used in a variety of applications such as: E.g.: Bearings, Cutting Tools, Wear Parts, Coatings & Powder Metallurgy.

Apparent porosity is the proportion of the volume of a ceramic sphere that consists of voids. It is expressed as a percentage of the total volume of the sphere. The apparent porosity of ceramic spheres can be influenced by a number of factors, including:

- Manufacturing method: The manufacturing method can affect the porosity of the sphere. For example, ceramic balls made by pressing are typically more porous than ceramic balls made by sintering.
- Raw materials: The raw materials from which the ball is made can affect the porosity. For example, ceramic balls made from porous raw materials are typically more porous than ceramic balls made from non-porous raw materials.
- Processing conditions: The processing conditions under which the ball is manufactured can affect porosity. For example, higher temperatures or shorter processing times can result in higher porosity.

The apparent porosity of ceramic spheres can be measured by a number of methods such as Archimedes method or gas absorption method. The apparent porosity of ceramic spheres can also be measured by optical methods such as: B. by microscopy or fluoroscopy. The apparent porosity of ceramic spheres is an important property that influences their properties. For example, higher porosity can result in lower density, lower strength, and lower thermal conductivity.

Bioinert is a term that describes a material that does not cause any significant reaction with the surrounding biological environment . This is an important property for materials used in medical implants and other applications that come into contact with the body. Bioinert materials are typically non-toxic and non-inflammatory and do not interact with body tissue in a way that causes damage or rejection. This makes them suitable for applications where it is important to minimize the risk of side effects.

Bioinert ceramic spheres are ceramic spheres that do not chemically react or interact in biological systems. They are often used in medical applications where smooth integration with body tissues is required. Bioinert ceramics are typically made from materials that have low surface energy and high chemical stability. These materials include aluminum oxide (Al₂O₃), zirconium oxide (ZrO₂) and titanium oxide (TiO₂).

The choice of a bioinert material for a particular application depends on the specific requirements of the implant or device. Factors such as mechanical strength, biocompatibility and wear resistance will play a role in the decision making. Bioinert materials are essential for the development of safe and effective medical devices. They provide a platform for designing implants and other devices that can be implanted into the body without causing significant damage or rejection. As the field of bioengineering continues to grow, we can expect to see even more innovative and biocompatible materials being developed.

Centrifugal force force is a force exerted by a rotating object on objects located within the object. The centrifugal force is perpendicular to the axis of rotation of the object and acts towards the periphery of the object. The centrifugal force of ceramic balls is determined by the following factors:

- Speed of rotation of ceramic balls: The faster the ceramic balls rotate, the greater the centrifugal force.
- Mass of the ceramic balls: The heavier the ceramic balls are, the greater the centrifugal force.
- Distance of the ceramic balls from the axis of rotation: The further the ceramic balls are from the axis of rotation, the greater the centrifugal force.

The centrifugal force of ceramic balls can be used in a variety of applications. Centrifugation uses ceramic balls to separate materials based on size, density, or other properties. The ceramic balls are rotated at high speed in a centrifuge. The centrifugal force pushes the ceramic balls against the wall of the centrifuge. The materials with a lower density than the ceramic balls are then pushed outward by the ceramic balls and collect on the surface of the centrifuge. The materials with a higher density than the ceramic balls sink down and collect at the bottom of the centrifuge. Ceramic balls can also be used in processing materials. They can be used to crush, mix or shape materials. Ceramic balls tend to be very hard and durable, so they can be used to manipulate materials without damaging them. Ceramic balls are also used in packaging. They can be used to protect products from shock and vibration. Ceramic balls are usually very stable and absorb shocks well.

Coefficient of friction also known as the coefficient of friction, is a dimension number for the ratio of the friction force to the normal force. It is denoted by the Greek letter μ (mu). The coefficient of friction is a measure of how large the friction force is in relation to the normal force; a higher coefficient of friction means greater friction. The friction force is the force that separates two bodies when they slide on each other. It is proportional to the normal force that pushes the two bodies together. The coefficient of friction of ceramic balls depends on a number of factors, including:

- Material of the ball: Ceramic balls made of harder materials, such as: B. silicon nitride (Si₃N₄) or zirconium oxide (ZrO₂), usually have a lower coefficient of friction than ceramic balls made of softer materials, such as. B. aluminum oxide (Al₂O₃).
- Surface condition of the ball: Ceramic balls with a smooth surface usually have a lower coefficient of friction than ceramic balls with a rough surface.
- Load on the ball: A higher load leads to a higher coefficient of friction.
- Environment: An aggressive environment can increase the coefficient of friction.

The coefficient of friction of ceramic balls is usually between 0.1 and 0.3. This is significantly lower than the coefficient of friction of metal balls, which is usually between 0.3 and 0.5. The low coefficients of friction of ceramic balls make them a good choice for applications where low wear and high efficiency are important.

Compressive strength is the ability of a material to withstand a compressive load without breaking or deforming. It is often measured in megapascals (MPa). Ceramic balls have high compressive strength, which varies depending on the material type and manufacturing process. Alumina has a compressive strength of about 3000 MPa, silicon carbide 4000 MPa and silicon nitride 5000 MPa. The compressive strength of ceramic balls makes them ideal for a variety of applications where they are subjected to high compressive loads, such as: E.g.: Bearings, Cutting Tools & Ammunition. The compressive strength of ceramic balls can be influenced by a number of factors, including:

The grain size: Ceramic balls with a smaller grain size typically have higher compressive strength.
The Density: Ceramic balls with a higher density usually have a higher compressive strength.
The porosity: Ceramic balls with a lower porosity usually have a higher compressive strength.

The compressive strength of ceramic balls is an important property that should be considered when selecting ceramic balls for a specific application.

Corrosion resistance is the property of a material not to be attacked by corrosion. Ceramic balls are generally corrosion-free. This is because ceramics are made of non-metallic materials that do not react with other materials. Ceramics also tend to be very dense, meaning they have no pores in which corrosion products can accumulate. Corrosion is a process in which a material breaks down through reaction with its environment. Corrosion can be caused by a number of factors including moisture, chemicals and temperature. Metals are particularly susceptible to corrosion because they can react with other elements. However, ceramics are generally non-metallic and therefore do not react with other elements. This makes them a corrosion-resistant option for a variety of applications. Here are some examples of ceramic balls used in corrosive environments:

- Bearings: Ceramic balls are used in bearings used in aggressive environments such as: B. in the chemical industry.
- Abrasives: Ceramic balls are used in abrasives used in corrosive liquids, such as: B. in metalworking.
- Medical devices: Ceramic balls are used in medical devices that come into contact with body fluids, such as: B. in implants and catheters.

The corrosion resistance of ceramic balls depends on a number of factors, such as: B. the chemical composition, the crystal structure and the surface quality of the ceramic material. Ceramic balls made of aluminum oxide (Al₂O₃), silicon nitride (Si₃N₄) & zirconium oxide (ZrO₂) are generally corrosion-free. Ceramic balls are a corrosion-resistant and versatile solution for a variety of applications. They are typically made from materials that are resistant to a variety of chemicals and environments.

Corrosion free is the property of a material that it is not attacked by corrosion. Corrosion is a process in which a material is destroyed through chemical or electrochemical reactions with its surroundings. Ceramic balls are typically corrosion-free because they are made from materials that are resistant to a wide range of chemicals and environments. Ceramic balls made of aluminum oxide (Al₂O₃), silicon nitride (Si₃N₄) & zirconium oxide (ZrO₂) are generally corrosion-free. Aluminum oxide (Al₂O₃) is very hard and has a high binding energy. It is therefore highly resistant to corrosion and is often used in applications that come into contact with aggressive chemicals or environments. Zirconium oxide (ZrO₂) is even harder than aluminum oxide and has an even higher binding energy. It is therefore even more corrosion resistant than aluminum oxide and is often used in applications that come into contact with extreme conditions such as: B. in the aerospace industry. Zirconium oxide (ZrO₂) is also very hard and has a high binding energy. It is therefore highly resistant to corrosion and is often used in applications that come into contact with aggressive chemicals, such as: B. in the chemical industry.

Density of ceramic balls depends on the type of ceramic material from which they are made. The density of some common ceramic materials is as follows: Alumina: 3.9 g/cm³, Silicon Nitride: 3.2 g/cm³ & Zirconia: 6.0 g/cm³. The density of ceramic balls is an important property that should be considered when selecting the right ceramic material for a particular application. High-density ceramic balls are typically harder and more wear-resistant than low-density ceramic balls.

Diamagnetism is a property that occurs in all materials, but it is particularly pronounced in ceramics . Ceramic balls are typically made from materials such as aluminum oxide, silicon nitride or zirconium oxide. These materials are diamagnetic, meaning they have a very weak magnetic moment directed in the opposite direction of the applied magnetic field. This property gives ceramic balls the ability to repel magnets. The diamagnetic force is very weak and can only be measured in very strong magnetic fields. In a strong magnetic field, ceramic balls will easily repel the magnet. This property is used in a number of applications, such as:

- Magnetic Shielding: Ceramic balls can be used to block or weaken magnetic fields. This property is used, for example, in electronics to shield magnetic fields from sensitive devices.
- Magnetic Levitation: Ceramic balls can levitate when held in a strong magnetic field. This property is used, for example, in the entertainment industry to operate magnetic ball games.
- Magnetic Separation: Ceramic balls can be used to separate magnetic materials from non-magnetic materials. This property is used, for example, in mineral processing to separate iron ore from other minerals.

Dielectric constant of ceramic spheres is a measure of the ability of a material to store electric field lines. The higher the dielectric constant, the more electric field lines the material can store. The dielectric constant of ceramic balls depends on the type of ceramic. The dielectric constant of ceramic spheres can also be influenced by the size and shape of the spheres. Smaller spheres generally have a higher dielectric constant than larger spheres. This is because the electric field lines are more concentrated in smaller spheres. The dielectric constant of ceramic spheres is an important property for a number of applications. For example, high dielectric constant ceramic balls are often used in capacitors to increase capacity.

Dislocation density is a measure of the number of dislocations in a crystal. A dislocation is a defect in the crystal lattice in which a number of atoms are in a location that is not their normal position. Dislocations are present in all crystals, but their number varies depending on the material. The dislocation density is measured in lines per unit area (L/cm²). The dislocation density of ceramic spheres depends on a number of factors, including:

- Manufacturing method: The manufacturing method can affect the dislocation density. For example, manufacturing processes that use high temperatures and/or high pressures result in higher dislocation density.
- Raw materials: The raw materials from which the sphere is made can influence the dislocation density. Materials with a higher melting temperature are typically more difficult to deform and therefore result in lower dislocation density.
- Processing conditions: The processing conditions under which the sphere is produced can affect the dislocation density. Higher temperatures and shorter processing times can lead to higher dislocation densities.

Dislocation density is an important property that affects the properties of ceramic balls. For example, higher dislocation density can result in lower strength, lower hardness, and lower toughness.

Elasticity modulus of a ceramic ball is a measure of its stiffness. It is measured in GPa and indicates how much force is required to cause a certain elongation of the ball. The elastic modulus of ceramic balls varies depending on the material and manufacturing process. Typical values are in the range of 300 to 500 GPa. Ceramic balls with a high modulus of elasticity are very stiff and resist deformation well. They are often used in applications that involve high loads, such as: B. in bearings, cutting tools and abrasives. Ceramic balls with a low modulus of elasticity are less rigid and deform more easily. They are often used in applications where high elasticity is required, such as: B. in seals and vibration dampers.

Some examples of elastic modulus values of ceramic balls are: Alumina: 300-400 GPa, Silicon Nitride: 350-500 GPa & Zirconia: 400-550 GPa. The elastic modulus of ceramic balls can be influenced by a number of factors, including porosity (porous ceramic balls have a lower elastic modulus than non-porous ceramic balls), grain size (ceramic balls with a fine grain size have a higher elastic modulus than ceramic balls with a coarse grain size), and the Type of loading (modulus of elasticity is higher for uniaxial loading than for biaxial or triaxial loading).

Electric insulation is the ability of a material not to conduct electric current. Ceramic balls are often used as electrical insulators because they have a number of properties that make them ideal for this purpose. Ceramic balls are very good insulators, usually very hard and wear-resistant and very temperature-resistant. They are used in a variety of applications including insulators, bearings & abrasives. The type of ceramic ball used for a particular application depends on the specific requirements of that application.

Some of the most commonly used ceramics for electrical insulators are: Alumina (Al₂O₃₎, Silicon Nitride (Si₃N₄) & Zirconia (ZrO₂). The electrical insulation of ceramic balls is based on their low electrical conductivity. Ceramic is an inorganic material composed of a number of elements and compounds. The electrical conductivity of ceramics is influenced by the types of elements and compounds that form them, as well as the crystal structure of the material. The electrical insulation of ceramic spheres is influenced by a number of factors, including:

- Size of the sphere: Smaller spheres have higher electrical conductivity than larger spheres.
- Surface of the sphere: A smooth surface has a higher electrical conductivity than a rough surface.
- Temperature: The electrical conductivity of ceramics increases as the temperature increases.

Electrical resistance of ceramic balls is generally very high. Most ceramics are non-conductive, meaning they do not conduct electricity well. This is because the atoms in ceramics are arranged in a solid, disordered structure. This structure is unable to transport electrical charges. The electrical resistance of ceramic spheres depends on a number of factors, including:

- Chemical composition of the ceramic: Ceramics with a high density and a low number of lattice defects tend to have a higher electrical resistance.
- Crystal structure of ceramics: Ceramics with an amorphous structure usually have a lower electrical resistance than ceramics with a crystalline structure.
- Size and shape of the ceramic balls: Larger ceramic balls generally have a higher electrical resistance than smaller ceramic balls.
- Surface quality of the ceramic balls: A rough surface usually has a higher electrical resistance than a smooth surface.

Typically, ceramic balls have a very high electrical resistance. The specific resistance of ceramic balls is usually in the range of 10^12 to 10^17 ohmcm. This means that a ceramic ball with a diameter of 1 cm and a resistivity of 10^12 ohmcm has an electrical resistance of 10^12 ohms. Ceramic balls with high electrical resistance are often used in applications where electrical insulation is required.

Fracture toughness is a property of a material that describes its ability to withstand without breaking or shattering. It is often described in terms of the critical stress intensity factor (KIC), which is the force required to propagate a crack in a material. Ceramic balls typically have high fracture toughness, making them a good choice for applications where they are subjected to high loads. The fracture toughness of ceramic balls depends on a number of factors, including:

- Chemical composition: Materials with a strong chemical bond tend to be more fracture tough.
- Crystal structure: Materials with a denser crystal structure are generally more fracture tough.
- Grain size: Materials with a finer grain size are generally more fracture tough.
- Surface texture: Materials with a smooth surface are generally more fracture-resistant.

The fracture toughness of ceramic balls can be measured through a series of tests such as fracture toughness testing (in this test, a ceramic ball is subjected to a compressive shock to determine the critical stress intensity factor (KIC)), abrasion testing (ceramic ball is used in an abrasive environment to test the abrasion and to determine the fracture toughness) & deformation test (a ceramic ball is subjected to a high load to determine the deformation and fracture toughness). Some examples of fracture-tough ceramic balls are:

- Alumina: Alumina balls have high fracture toughness and are often used in applications where they are subjected to high loads, such as: B. in bearings and cutting tools.
- Silicon Nitride: Silicon nitride balls have even higher fracture toughness than aluminum oxide balls and are often used in applications that involve extreme loads, such as: B. in aerospace and defense
- Zirconia: Zirconia balls are typically less fracture tough than aluminum oxide and silicon nitride balls, but have a number of other advantages, such as: B. high hardness and good chemical resistance.

Fracture toughness is an important property for ceramic balls. Fracture-tough ceramic balls are able to withstand high loads without breaking or splintering. This feature makes them a good choice for a variety of applications.

Grade (quality class) considers the tolerances of dimensions, surface roughness, spherical shape and diameter spread in combination. The quality class of high-quality precision balls made of ceramic is determined in accordance with DIN 5401. The accuracy of bullets is divided into grades. The classes theoretically range from G3 to G700. The smaller the value of the class, the higher the accuracy of the bullets. Balls in classes G3 and G5 are considered the highest quality standard models.

Quality classes of ceramic balls are usually defined according to hardness, abrasion resistance, corrosion resistance, tolerance and surface finish. The following are some of the most common grades of ceramic balls:

- Industry Standard: These balls have medium hardness, abrasion resistance and corrosion resistance. They are often used in applications where these properties are not critical.
- Premium: These balls have higher hardness, abrasion resistance and corrosion resistance. They are often used in applications where these properties are important, such as: B. in the aerospace industry.
- Special: These balls are developed for specific applications and have special properties, e.g. B. high hardness or corrosion resistance.

Choosing the right quality grade for ceramic balls depends on the specific requirements of the application.

Hardness of ceramic balls depends on the type of ceramic material used. The hardness of ceramic balls is typically measured on the Mohs hardness scale, which is a relative scale from 1 to 10, with 1 being the softest and 10 being the hardest material. Most ceramic balls have a Mohs hardness of 8 or 9, making them harder than most metals. The most common ceramic materials for balls are: alumina ceramic balls (a Mohs hardness of 9), silicon nitride ceramic balls (a Mohs hardness of 9), and zirconia ceramic balls (a Mohs hardness of 8). They are often used in applications where high wear resistance is required, such as: B. in cutting tools, bearings, abrasives, cutting tools, bearings, turbines, cutting tools, bearings and chemical plants. The hardness of ceramic balls can also be affected by various factors such as:

- Shape of the ball: Balls with a smooth surface are usually harder than balls with a rough surface.
- Size of the ball: Larger balls are usually harder than smaller balls.
- Manufacturing Method: Balls made by sintering are typically harder than balls made by other processes.

In addition, ceramic balls can be given various surface treatments to improve their hardness and abrasion resistance. For example, they can be coated with a hardener or hardened with a laser. These treatments can increase the hardness of the balls by up to 30%.

Heat resistance is the ability of a material to withstand high temperatures without destruction or change. It is often measured in terms of the temperature at which a material loses its shape, strength or other properties. The heat resistance of ceramic balls depends on a number of factors, including:

- Material: Ceramic balls made from materials with a high melting temperature are generally more heat resistant than ceramic balls made from materials with a low melting temperature.
- Porosity: Ceramic balls with a low porosity are generally more heat-resistant than ceramic balls with a high porosity.
- Surface finish: Ceramic balls with a smooth surface are generally more heat-resistant than ceramic balls with a rough surface.

Ceramic balls made from the following materials are generally heat-resistant: aluminum oxide (Al₂O₃) has a melting temperature of 2,050 °C and is therefore very heat-resistant, zirconium oxide (ZrO₂) has a melting temperature of 2,600 °C and is therefore even more heat-resistant than aluminum oxide & Silicon nitride (Si₃N₄) has a melting temperature of 1,900 °C and is therefore also very heat-resistant. Alumina, silicon nitride and zirconium oxide are very hard and have high melting points and are able to withstand high temperatures without melting, deforming or losing their properties. These properties make them a valuable resource for a variety of applications such as: B. Industry & Aerospace.

Hydrofluoric acid (HF) is a colorless, pungent-smelling liquid. It is one of the strongest acids known and is highly toxic. Hydrofluoric acid is a chemical compound made from fluorine and water. It can be mixed with water in any ratio and has an acidic reaction. Hydrofluoric acid is a strong acid because it can release protons. Protons are positively charged atoms that can easily combine with other molecules. When hydrofluoric acid reacts with water, it dissolves in water and forms HF ions. These ions are very reactive and can react with many other molecules. Hydrofluoric acid is highly toxic because it can release fluoride ions. Fluoride ions are very toxic and can cause serious damage to bones, teeth and nerves. If hydrofluoric acid comes into contact with skin or eyes, it can cause serious burns.

Ceramic balls are often used with hydrofluoric acid to etch the surface. Hydrofluoric acid is a strong acid that dissolves aluminum oxide. When ceramic balls come into contact with hydrofluoric acid, the surface of the aluminum oxide is broken down into small particles. These particles form a rough, porous surface. This can help improve the adhesion of coatings or adhesives or prepare the surface for other uses. Etching ceramic balls with hydrofluoric acid is an effective way to modify the surface.

Inert is used to describe a substance that is not chemically reactive. In other words, an inert substance does not react with other substances under normal conditions. This means that inert substances are unlikely to form compounds or change their properties when exposed to other substances or to changes in temperature or pressure. Ceramic balls are often referred to as "inert," meaning that they are not chemically reactive under normal conditions. This means that ceramic balls do not react with other substances under normal conditions or change their properties. The inertity of ceramic spheres is influenced by a number of factors, including:

- Chemical composition: Ceramics are composed of highly ordered structures that exhibit high chemical stability.
- Crystal structure: Ceramics with a denser crystal structure are generally more inert.
- Surface finish: A smooth surface is typically more inert than a rough surface.

The chemical inertness of ceramic balls is an important property that makes them suitable for a wide range of applications. It is important to note that the term “inert” is relative. No substance is completely inert and all substances can react under the right conditions. However, some substances are generally considered to be inert because they are very resistant to reactions.

Melting point is the temperature at which a substance changes from a solid to a liquid state. It is measured in degrees Celsius (°C) or degrees Fahrenheit (°F). The melting point depends on the type of substance. The melting point of ceramic balls depends on the type of ceramic material from which they are made. Ceramic balls are often made from the following materials. The most common ceramic materials for ceramic balls are aluminum oxid (Al₂O₃), silicon nitride (Si₃N₄) and zirconium oxide (ZrO₂). The melting point of aluminum oxide is 2053 °C, silicon nitride is 1900 °C and zirconium oxide is 2,700 °C. Zirconia ceramic balls are the most heat-resistant ceramic balls and are often used in applications that are exposed to very high temperatures, such as: B. in the nuclear industry.

The specific melting points of ceramic balls made from these materials may vary depending on the manufacturing method and composition. The porosity of a ceramic ball can also affect the melting point. Porous ceramic balls have a lower melting point than non-porous ceramic balls. Ceramic balls with a high melting point are typically more expensive than ceramic balls with a lower melting point. However, ceramic balls with a high melting point are also more resistant to high temperatures and wear.

Mohs Scale is a relative hardness scale for minerals. It was developed in 1812 by the German-Austrian mineralogist Friedrich Mohs and goes from 1 to 10, with 1 being the softest material and 10 being the hardest material. The scale is based on the ability of a mineral to scratch another mineral. A mineral with a Mohs hardness of 5 can scratch a mineral with a Mohs hardness of 4, but not a mineral with a Mohs hardness of 6. Here are the 10 minerals on the Mohs scale, from soft (1) to hard (10):

Talc (1), Gisp (2), Calcite (3) , Fluorite (4), Apatite (5), Orthoclase (6), Quartz (7), Topaz (8), Corundum (9) & Diamond (10).

The Mohs scale is used in a variety of applications including: mineral identification, hardness testing of materials & tool manufacturing.

Poisson's constant is a material constant that describes the ratio of transverse strain to axial strain. It is denoted by the Greek letter ν (Nu) and is a dimensionless value. The Poisson's constant of ceramic spheres depends on a number of factors, including:

- Type of ceramic material: Ceramics made from materials with a high binding energy, such as: B. aluminum oxide (Al₂O₃), Siliziumnitrid (Si₃N₄) and zirconium oxide (ZrO₂), usually have a higher Poisson's constant than ceramics made from materials with a lower binding energy.
- Porosity: Ceramic balls with a lower porosity usually have a higher Poisson's constant than ceramic balls with a higher porosity.
- Manufacturing method: Ceramic balls made by sintering tend to have a higher Poisson's constant than ceramic balls made by pressing.

The Poisson's constant of ceramic balls is usually between 0.1 and 0.3. Example values for the Poisson's constant of aluminum oxide (Al₂O₃) 0,21, silicon nitride (Si₃N₄) 0,26 of zirconium oxide (ZrO₂) 0,25. Ceramic balls with a high Poisson's constant usually have high strength and stiffness. Ceramic balls with a high Poisson's constant are often used in applications where they are subjected to high loads, such as: in bearings, cutting tools & wear parts.

Rupture modulus (also called elastic modulus or Young's modulus) describes how much a material deforms when it is subjected to a force. It is measured in Pascals (Pa). The modulus of rupture of a ceramic ball depends on the type of material used and the size of the ball. Ceramic balls made from materials such as aluminum oxide, silicon nitride and zirconium oxide have a modulus of rupture of around 350 to 400 GPa. Ceramic balls made from materials such as porcelain and terracotta have a modulus of rupture of around 200 to 300 GPa. The modulus of rupture is an important property for ceramic balls as it determines the resilience of the ball. A bullet with a high modulus of rupture can withstand a higher load before breaking.

The modulus of rupture is usually determined by a notched-bar impact test. In this experiment, a small sample is provided with a notch and loaded with a specific force. The modulus of rupture is then determined from the size of the crack at the fracture point.

Silicon carbide balls are ceramic balls made from the material silicon carbide (SiC). Silicon carbide is a very hard and wear-resistant material that has a Mohs hardness of 9. This makes it an ideal material for applications where wear is a concern, such as: B. in cutting tools (including drills, milling cutters and saw blades), bearings and abrasives. Silicon carbide balls offer a number of advantages over other materials, such as: B. metal balls. They are typically harder and more wear-resistant than metal balls, making them ideal for applications with high wear rates. They are also typically lighter than metal balls, making them ideal for high speed or high load applications. Silicon carbide has a melting point of 2,730 °C, a molecular weight of 40.11 g/mol and a density of 3.21 g/cm³. Silicon carbide is the lightest and hardest ceramic material.

Silicon nitride a chemical compound consisting of the elements silicon and nitrogen, has the formula Si 3 N 4 and belongs to the nitride class of substances. Silicon nitride has a molecular weight of 140.28 g/mol, a very low density of 3.17 g/cm³, good flexural strength (850 MPa) and very good thermal shock resistance (570 K). Silicon nitride is a ceramic material with a variety of properties that make it suitable for a wide range of applications. It is an extremely hard and wear-resistant material with a melting point of 2,900 °C (5,232 °F), making it one of the most fireproof ceramic materials. It is also very stable and has excellent resistance to corrosion and chemical attacks. Silicon nitride has a Mohs hardness of 9, second only to diamond. This makes it an excellent material for wear-resistant applications such as cutting tools, bearings and seals. Silicon nitride has high compressive strength and high bending strength. This makes it a robust and durable material that can withstand high loads. Silicon nitride has a low coefficient of thermal expansion, making it a good material for applications where dimensional stability is important. This makes it a good choice for components that need to operate at extreme temperatures, such as turbine blades and rocket nozzles, and silicon nitride is used in bearings for a variety of applications, such as high-speed machinery and aerospace applications. It is a good choice for bearings because it is hard, wear-resistant and low-friction.

Softening point of a ceramic ball is the temperature at which it loses its strength and becomes soft and malleable. It is usually measured in °C or °F. It is an important property for determining the usability of ceramic balls in certain applications. The softening point of ceramic balls depends on the type of ceramic. Ceramics with a high melting temperature, such as Some materials, such as aluminum oxide (2050 °C or 3662 °F), silicon nitride (2100 °C or 3832 °F) and zirconia (2500 °C or 4532 °F), have a high softening point. Ceramics with a low melting temperature, such as B. Clay and porcelain have a low softening point. Ceramic balls with a high softening point are suitable for applications where they are exposed to high temperatures. Ceramic balls with a low softening point are suitable for applications where they are exposed to low temperatures.

Specific heat is a physical quantity that describes the ability of a substance to store heat. It is usually denoted by the Greek letter c and measured in J/kgK (joules per kilogram and Kelvin). Specific heat indicates how much thermal energy is required to increase the temperature of a specific mass of a substance by a specific amount. The specific heat capacity of ceramic balls is generally higher than that of metals or plastics. This means that ceramic balls require more energy to increase their temperature. The specific heat capacity of ceramic balls made from different materials can vary greatly. For example, ceramic balls made of aluminum oxide (Al2O3) have a specific heat capacity of 770 J/kgK, while ceramic balls made of silicon nitride (Si3N4) have a specific heat capacity of 710 J/kgK. The specific heat capacity of ceramic balls is an important property that influences their use in a variety of applications. For example, ceramic balls with high specific heat capacity can be used as heat storage. Ceramic balls with low specific heat capacity can be used as thermal insulators. Specific heat capacity of ceramic balls can be influenced by a number of factors including:

- Porosity: Porous ceramic balls have a lower specific heat capacity than non-porous ceramic balls.
- Density: Specific heat capacity is inversely proportional to density.
- Crystal structure: The specific heat capacity can be influenced by the crystal structure of the ceramic material.

Synthetic ruby is a type of ceramic composed of aluminum oxide. They are made by using high pressure and high temperature. Synthetic ruby spheres are typically very hard and resilient and are used in a variety of applications. Synthetic ruby spheres are produced in a variety of sizes and shapes. They are usually red, but they can also come in other colors such as blue, green or purple. Synthetic ruby has a melting point of 2050 °C, a molecular weight of 101.96 g/mol, a hardness of 9 Mohs, a low density of 3.92 - 4.00 g/cm³ and a heat resistance up to 1800 °C.

Synthetic ruby spheres are widely used in applications where high strength, wear resistance and corrosion resistance are required such as: B. Storage & wear parts. Synthetic ruby spheres can also be found in applications where high temperature resistance is required, such as: B. Aerospace & chemical industry. Synthetic ruby spheres are a versatile and high quality material used in a variety of applications.

Synthetic sapphire is an artificial material made of aluminum oxide (Al 2 O 3 ). Synthetic sapphire spheres are usually made by sintering. In this process, aluminum oxide powders are sintered into a solid mass under high pressure and temperature. It is a very hard and resilient material used in a wide range of applications. Synthetic sapphire spheres are widely used in applications where high hardness, abrasion resistance and corrosion resistance are required. This includes bearings, cutting tools, wear parts and optics. Synthetic sapphire spheres have a number of properties that make them suitable for a variety of applications, including:

- Hardness: Synthetic sapphires have a hardness of up to 2300 Vickers. This makes them one of the hardest materials commercially available.
- Abrasion resistance: Synthetic sapphires have a very high abrasion resistance. This makes them ideal for applications where they are exposed to high levels of abrasion.
- Corrosion resistance: Synthetic sapphires are very resistant to corrosion. This makes them ideal for applications where they are exposed to harsh chemicals or environments.
- Optical properties: Synthetic sapphires have excellent optical properties. They are transparent, have high light conductivity and are not discolored.

The hardness of synthetic sapphire is 9 on the Mohs scale. This means that it is surpassed only by diamonds. The melting point of synthetic sapphire is 2,050 °C.

Tensile strength is the maximum force per area that a material can withstand before it breaks. It is measured in megapascals (MPa) or kilonewtons per square centimeter (kN/cm²). Tensile strength is an important property for many materials, including ceramic balls. It is taken into account during the design to ensure that they can withstand the stresses they are subjected to. The tensile strength of ceramic balls is usually between 50 and 500 MPa. Ceramic balls with a tensile strength of over 1000 MPa are called high-performance ceramics. The tensile strength of ceramic balls depends on a number of factors, including:

- Type of ceramic material: Ceramics made from materials with a high binding energy, such as: B. aluminum oxide (Al₂O₃), silicon nitride (Si₃N₄) and zirconium oxide (ZrO2), usually have a higher tensile strength than ceramics made from materials with a lower binding energy.
- Porosity: Ceramic balls with a lower porosity generally have a higher tensile strength than ceramic balls with a higher porosity.
- Manufacturing method: Ceramic balls made by sintering tend to have higher tensile strength than ceramic balls made by pressing.

Ceramic balls with a high tensile strength are often used in applications where they are subjected to tensile loads, such as: B. in bearings, cutting tools & wear parts.

Thermal expansion coefficient plays an important role in many areas of technology. The coefficient of thermal expansion is a parameter that describes the behavior of a material in terms of changes in its dimensions when temperature changes. It is given in units of 1/K (Kelvin). The coefficient of thermal expansion indicates how much a material expands at a certain temperature change. The thermal expansion coefficient of ceramic balls depends on the type of ceramic material. Typical values for the CTE of ceramic balls are: aluminum oxide (Al2O3) 7.2 x 10^-6 / K, silicon nitride (Si3N4) 3.3 x 10^-6 / K & zirconium oxide (ZrO2) 10.0 x 10^- 6 / K. Ceramic balls with a lower CTE are less susceptible to thermal stresses that can arise from temperature changes. These stresses can lead to cracks or breaks. The CTE of ceramic balls can be influenced by a number of factors, including:

Porosity: Porous ceramic balls have a higher CTE than non-porous ceramic balls.
The grain size: Ceramic balls with a finer grain size have a lower CTE than ceramic balls with a coarser grain size.
The manufacturing method: The manufacturing method can affect the CTE of ceramic balls.

Ceramic balls with a low CTE are often used in applications where they are exposed to high temperatures e.g. B. Bearings, seals & cleaning devices.

Thermal conductivity is a material property that indicates the ability of a material to transfer heat. It is measured in watts per meter Kelvin (W/mK). Thermal conductivity plays an important role in many areas of technology. Thermal conductivity is a measure of how well a material transports heat from one place to another. The average thermal conductivity of ceramic balls is between 20 and 40 W/mK. The thermal conductivity of ceramic balls is often measured using a thermal conductivity tester. The thermal conductivity of ceramic balls depends on a number of factors, including:

- Type of ceramic material: Ceramics with a high density and a dense crystal structure tend to have high thermal conductivity. Examples of ceramic materials with high thermal conductivity are aluminum oxide (Al₂O₃) with a thermal conductivity of 38 W/mK, silicon nitride (Si₃N₄) with a thermal conductivity of 220 W/mK & zirconium oxide (ZrO₂) with a thermal conductivity of 175W/mK.
- Porosity of the ceramic: Porous ceramics have a lower thermal conductivity than non-porous ceramics. This is because the pores hinder heat conduction.
- Temperature: The thermal conductivity of ceramics generally decreases as the temperature increases. This is because the atoms vibrate more at higher temperatures and hinder heat conduction.

Ceramic balls with high thermal conductivity are used in applications where heat must be transferred quickly. Examples include bearings, cutting tools & heat transfer devices.

Thermal shock resistance of ceramic balls is their ability to withstand abrupt changes in temperature without cracking or shattering. It is usually measured in terms of the temperature difference that a ball can withstand without breaking. The thermal shock resistance of ceramic balls depends on a number of factors, including:

- Type of ceramic material: Ceramics made from materials with a high melting temperature are typically more thermal shock resistant than ceramics made from materials with a low melting temperature.
- Porosity: Porous ceramic balls are more susceptible to thermal shock than non-porous ceramic balls.
- Surface finish: Ceramic balls with a smooth surface are generally more resistant to thermal shock than ceramic balls with a rough surface.

Ceramic balls made from the following materials are generally resistant to thermal shock: Aluminum oxide (Al₂O₃) has a high melting temperature and is therefore resistant to thermal shock. Silicon nitride (Si₃N₄) has an even higher melting temperature than aluminum oxide and is therefore even more resistant to thermal shock. Zirconium oxide (ZrO₂) is also very resistant to thermal shock. Ceramic balls are used in a variety of applications where they may be exposed to high temperatures. These include industrial, aerospace & medical.

Wear resistance of ceramic balls is an important property that influences their service life and performance in a variety of applications. Ceramic balls are typically much more wear resistant than metal balls, making them a preferred choice for applications where wear is a concern. This is because ceramic is harder than metal. Hard materials are less susceptible to wear and tear due to friction because they are not as easily scratched or abraded. Ceramic balls are used in a variety of applications where wear is a concern, such as: E.g. roller bearings, angular contact ball bearings & spindle bearings. Wear resistance of ceramic balls depends on a number of factors, including:

- Type of ceramic: Ceramic balls made from materials with high hardness, such as: B. aluminum oxide (Al₂O₃) or silicon nitride (Si₃N₄), are usually more wear-resistant than ceramic balls made of materials with lower hardness, such as. B. zirconium oxide (ZrO₂).
- Surface finish: A smooth surface finish reduces friction and wear.
- Load: A higher load leads to greater wear.
- Environment: An aggressive environment can accelerate wear.

Zirconium oxide balls are ceramic ballsmade from zirconium oxide (ZrO₂). Zirconia is a very hard and durable material used in a wide range of applications. Zirconia has a boiling point of 5,390 °C, Mohs hardness of 7 to 8 (high), flexural strength of 900 to 1,200 MPa, compressive strength of 1,200 to 1,500 MPa, specific heat of 0.22 J/g K & a thermal conductivity of 2, 2 W/(m K). Zirconia balls have a number of properties that make them suitable for a wide range of applications. These include:

- Hardness: Zirconia is one of the hardest materials known. It has a Mohs hardness of 8.5, meaning it is surpassed only by diamonds and some other diamond-like materials.
- Heat resistance: Zirconia has a high melting point of 2500°C. It is therefore very heat resistant and can withstand high temperatures.
- Corrosion resistance: Zirconia is resistant to a wide range of chemicals and environments. It is therefore a very corrosion-resistant material.
- Biological harmlessness: Zirconia is a biocompatible material that can be used in medicine.

Zirconia balls are a versatile and reliable solution for a variety of applications. They offer an excellent combination of hardness, heat resistance, corrosion resistance and biological harmlessness. Zirconia balls are used in a variety of applications including bearings, cutting tools, wear parts, industrial, watchmaking, aerospace & medical.

. back

. hightech-keramikkugeln.de is a subpage of the Quick-Ceram Division in the company Quick-Ohm Küpper & Co. GmbH

. For legal reasons, we only supply companies and registered traders .

. back