China Custom Sized and Shaped Alumina Al2O3 Ceramic Substrate Disc, Find details about China Alumina Ceramic, Alumina Ceramic Disc from Custom Sized and Shaped Alumina Al2O3 Ceramic Substrate Disc
Test Item/Unit | Numerical Value | Test Item/Unit | Numerical Value | ||||
Product Material | Alumina | Zirconia | Product Material | Alumina | Zirconia | ||
Component Content % | ≥99% | ≥95% | ≥90% | Volume Resistance cm | >1012 | >1012 | >1012 |
Sintering Temp ºC | 1780-1800 | 1650-1680 | 1550-2600 | Bending Strength Mpa | 400 | 320 | 1100 |
Specific Gravity g/cm3 | ≥3.8 | ≥3.6 | >6 | Thermal Expansion Coefficient *10° | 6.8-8 | 6.2-8.5 | 6.9-10 |
Breakdown Voltage Strength kv/mm | 15 | 15 | 15 | Roughness μm | ≤0.8 | ≤0.8 | ≤0.8 |
Bibulous Rate % | <0.01 | <0.01 | <0.01 | Mirror Polished Ra | ≤0.05 | ≤0.1 | ≤0.05 |
Anti Pressure Mpa | 3700 | 2400 | 5000 | Thermal Conductivity W/m-k | 25 | 20 | 2.5 |
Hardness Hra | ≥88 | ≥82 | ≥88 | Temperature Resistance ºC | 1700 | 1600 | 1800 |