China Customized High Thermal Conductivity Thermal Alumina Ceramic for Heat Sink, Find details about China Alumina Ceramic, High Thermal Conductivity Alumina Ceramic from Customized High Thermal Conductivity Thermal Alumina Ceramic for Heat Sink
Test Item | Unit | Numerical Value | ||
Product Material | ---- | Alumina | Zirconia | |
Component Content | % | >=99% | >=96% | 90% |
Sintering Temp | ºC | 1780~1800 | 1650~1680 | 1550~1600 |
Specific Gravity | G/cm^3 | >=3.6 | >=3.8 | >=6.0 |
Breakdown Voltage Strength | KV/mm | 15 | 15 | 15 |
Bibulous Rate | % | <0.01 | <0.01 | <0.01 |
Anti Pressure | Mpa | 3700 | 2400 | 5000 |
Hardness | Hra | >=88 | >=82 | >=85 |
Volume Resistance | Cm | >1012 | >1012 | >1012 |
Bending Resistance | Mpa | 400 | 320 | 700 |
Thermal Expansion Coefficient | ---- | 6.8~8 | 6.2~8.5 | 6.9~10 |
Dielectric Constant | MHz | 9.8 | 8.5 | 10 |
Roughness | Ra | <=0.8 | <=0.8 | <=0.8 |
Mirror Polished | ---- | <=0.05 | <=0.1 | <=0.05 |
Thermal Conductivity | W/m-k | 25 | 20 | 25 |
Temprature Resistance | ºC | 1700 | 1600 | 1800 |
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