- Contact Person : Mr. Liu Mike
- Company Name : Yixing Feifan Ceramics Co., Ltd.
- Tel : 86-510-87191518
- Fax : 86-510-87192999
- Address : Jiangsu,Yixing,Jianxin Village, Dingshu Town
- Country/Region : China
- Zip : 214220
wearable ceramics
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Alumina balls,nozzles,substrates have the performances of high purity,good hermetical property,good hardness,low abrade,anti-corrode,high grinding efficiency,no pollution and etc.
The products are widely applicated in the industries of ceramic, electric power, petroleum, chemical industry and light industry, they are the liner and grinding medium for various ceramic material, α-Al2O3 powder,flake alumina,kaolin,fusible corundum,porcelain enamel,dye,ceramic glaze,dope,printing ink,special glass,various ball mill machines and so on.
95%/99%/99.7% Al2O3 Material Parameters:
Item | Test Condition | Unit&Symbol | 95%Alumina ceramics | 99%Alumina ceramics | 99.7%Alumina ceramics |
The main chemical ingredient | Al2O3 | Al2O3 | Al2O3 | ||
Bulk Density | g/cm3 | 3.6 | 3.89 | 3.96 | |
Maximum Use Temperature | 1450°C | 1600°C | 1650°C | ||
Water absorption | % | 0 | 0 | 0 | |
ROHS Hardness | ≥85 | ≥89 | ≥89 | ||
Flexural strength | 20° C | MPa (psi x 103) | 358 (52) | 550 | 550 |
Compressive Strength | 20° C | MPa (psi x 103) | 2068 (300) | 2600(377) | 2600(377) |
Fracture Toughness | K(I c) | Mpa m1/2 | 4-5 | 5.6 | 6 |
Coefficient of thermal expansion | 25-1000° C | 1X 10-6/°C | 7.6 | 7.9 | 8.2 |
Coefficient of thermal conductity | 20° C | W/m °K | 16 | 30.0 | 30.4 |
Thermal Shock Resistance | Tc | °C | 250 | 200 | 200 |
Dielectricity constant | 1MHz.25°C | 9 | 9.7 | 9.7 | |
Dielectric strength | ac-kV/mm (ac V/mil) | 8.3 (210) | 8.7 (220) | 8.7 (220) | |
Volume Resistivity | 100°C | ohm-cm | > 1013 | > 1014 | > 1014 |
wearable ceramics
