Product description:

Zirconia heat-conducting ceramic ZrO2 is pure white, yellow or gray when it contains impurities, and generally contains HfO2, which is not easy to separate. The production of zirconia ceramics requires the preparation of powders with high purity, good dispersion, ultrafine particles, and narrow particle size distribution. There are many methods for preparing zirconia ultrafine powders. The purification of zirconia mainly includes chlorination and thermal decomposition methods, alkali metal Oxidative decomposition method, lime melting method, plasma arc method, precipitation method, colloid method, hydrolysis method, spray pyrolysis method, etc.

The advantages of zirconia thermal conductive ceramics are as follows:

1. High hardness, high toughness, high flexural strength, zirconia ceramic density between 5.95-6.05g/cm3, ceramic products produced by Jiarifeng (alumina Al2O3, silicon carbide SiC, zirconia ZrO2) among the three Among them, the toughness of zirconia is the highest, above 8MPa m1/2.

2. High wear resistance, low friction coefficient, wear resistance is 15 times that of alumina ceramics, friction coefficient is only 1/2 of alumina ceramics, after grinding, the surface finish is higher, up to ▽9 or more, It is mirror-like, extremely smooth and has a lower coefficient of friction.

3. Good insulation, strong corrosion resistance, no static electricity, high temperature resistance, excellent heat insulation performance, thermal expansion coefficient close to steel.

4. Zirconia ceramics have self-lubricating properties, which can solve the pollution caused by lubricating media and the inconvenience of adding.

Processing form of zirconia thermal conductive ceramic products:

1. Mold opening processing: All products except laser processing require mold opening processing.

2. Laser processing products: According to customer requirements, laser products (aluminum nitride, aluminum oxide, zirconia, etc.) are used for scribing, drilling and opening processing. The minimum aperture of laser drilling is 0.05mm, and the thickness of laser cutting is less than 2mm. Its products have high processing precision and good repeatability.

Zirconia heat-conducting ceramics can be divided into three categories according to the different stabilizers added:

1. Characteristics of yttrium-stabilized zirconia heat-conducting ceramics: service temperature up to 2100 degrees; high density, low thermal conductivity; chemical inertness; resistance to metal melting; ion conductivity; wear resistance, high hardness, and high fracture toughness.

2. Characteristics of cerium-stabilized zirconia heat-conducting ceramics: service temperature up to 2100 degrees; high density, low thermal conductivity; chemical inertness; resistance to metal melting; wear resistance, high hardness, and high fracture toughness.

3. Features of magnesium-stabilized zirconia heat-conducting ceramics: service temperature up to 2400 degrees; high density, low thermal conductivity; chemical inertness; resistance to metal melting; wear resistance, high hardness, and high fracture toughness.

Typical applications of zirconia thermal conductive ceramics:

Zirconia heat-conducting ceramics are mainly used in high-power equipment, IC MOS tubes, IGBT chip-type heat-conducting insulation, high-frequency power supplies, communications, mechanical equipment, high-current, high-voltage, high-temperature and other product components that require heat conduction and heat dissipation insulation.

There are a variety of models, welcome to send drawings inquiry.