Precision Ceramics

Advanced Ceramic Parts

Alumina Ceramic Parts

(Al2O3, aluminum oxide)

Alumina ceramics (aluminum oxide) is the most widely used ceramic material. It offers superior mechanical strength, electrical insulation, high frequency retention, thermal conductivity, heat resistance and corrosion resistance.

Alumina ceramic components are used in a wide range of applications such as electronics, pump components and automotive sensors.

We supply a variety of alumina ceramics of alumina content from 80% to 99.9%
Physical properties, shape, dimensions and tolerance as required.

Typical Physical Properties of alumina ceramics:

Good electrical insulation
High mechanical strength
High hardness
Excellent thermal stability
Good chemical stability
Excellent wear resistance
Excellent corrosion resistance
Low dielectric constant
Good heat resistance.

Typical alumina ceramic products:

Pump seals and components
Wear resistant components
Insulating washers or bushings
Semiconductor components
Aerospace components
Electrical or electronic insulators (spacers)

Zirconia Ceramic Parts

(ZrO2)

Zirconia ceramics is the strongest and toughest material among advanced ceramic materials.

Zirconia (ZrO2) has a monoclinic crystal structure at room temperatures, but transforms to cubic and tetragonal structures at elevated temperatures.

This transition can result in the development of stresses during cooling which negatively
impact the strength of the material.

Typical Physical Properties of Zirconia Ceramics:

1.High hardness, high toughness, high bending strength, zirconia ceramic density is 5.95-6.05g/cm3, zirconia ceramic toughness is 8MPa · m1/2 or more higher;

2.High wear resistance, low friction coefficient, wear resistance is 15 times that of alumina ceramics, friction coefficient is only 1/2 of that of alumina ceramics, after grinding(polishing) processing, the surface finish is better, up to ▽9, mirror surface, extremely smooth, with a lower coefficient of friction;

3.Good insulation, corrosion resistance, no static electricity, high temperature resistance, excellent thermal insulation, thermal expansion coefficient is close to that of steel;

4. Zirconia ceramics have self-lubrication, can solve the pollution caused by the lubricating medium and inconvenience caused by feeding.

Typical Zirconia Ceramic Products:

Pump components
Cutting tools
Valves (Spool)
Bearings
Filters

Steatite Ceramic Parts

(MgO•SiO2)

Steatite is a magnesium silicate material of high electrical resistance at high temperatures, good mechanical strength and a very low dielectric loss factor, which has been used for many decades as insulators or enclosures for electrical components.

Steatite ceramics is made from a mineral talcum(3MgO.4SiO2.H2O), as the main raw material, adding suitable clay and BaTi03 and other ingredients through the process of mixture fine grinding, molding and high temperature sintering.

Steatite ceramics is an excellent material for electrical engineering as it can be readily shape sintered into a wide variety of forms such as washers, bushings, resistor forms, spaces and beads.

Typical Physical Properties of Steatite Ceramics:

Relatively high mechanical strength
High volume resistivity at elevated temperatures
Excellent dielectric strength
Low dissipation factor

Typical Steatite Ceramic Products:

Supports for heating devices
Electrical insulators
Stand-off insulators
Lighting insulators (supports, bases, etc.)
Spacers
Insulating washers or bushings

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