Ceramic Valves
Features
Ceramic valves and other sliding parts are available using excellent surface polishing technology. Our ceramic valves owns relatively high wear resistance, hardness and chemical resistance.
Applications
Sliding parts, Potentiometers, Isolators, Alumina substrates (which is not possible to be manufactured by sheet processing), Faucet valves.
Characteristic Values
| Item | Unit | Type | |||
| AP960 | AP90T | ||||
| Material | - | Al2O3 | Al2O3 | ||
| Color | - | White | White Green | ||
| Alumina Purity | % | 96 | 90 | ||
| Bulk Density | g/㎤ | 3.7×103 | 3.7×103 | ||
| Absorption of Water | % | 0 | 0 | ||
| Mechanical Characteristic | Bendin Strength | MPa | 313 | 294 | |
| Young's Modulus | MPa | 1961 | - | ||
| Vickers Hardness | GPa | 15.7 | 13.7 | ||
| Thermal Characteristic | Coefficient of Thermal Expansion | 40-400°C | 10-6/K | 7.3 | 6.2 |
| Thermal Conductivity | 25°C | W/(m･K) | 23.8 | 17.9 | |
| Specific Heat | J/(㎏･K) | 0.75×103 | 0.75×103 | ||
| Thermal Shock Resistance | °C | 200 | 200 | ||
| Electrical Characteristic | Dielectric Constant | 1MHz | - | 9.4 | - |
| Volume Resistivity | 20°C | Ω･㎝ | 1014 | - | |
| 300°C | Ω･㎝ | 1013 | - | ||
| 500°C | Ω･㎝ | 1010 | - | ||
| Dielectric Breakdown Voltage | ㎸/㎜ | 10 | 10 | ||
※ The data above is reference which has been retrieved from samples. The characteristics may differ depending on the shape of the products. etc.
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