96% Aluminiumoxid-Keramik-Substrat

96% Alumina Ceramic Substrate 96%Al2O3 ceramic substrates are widely used in many applications,including HIC,chip Resistance,network resistance,Focalized potentiometers,Semiconductor Congealers and power Modules. 1.Highreliabilityandsafety. 2.Highdensityandmechanicalproperties. 3.Highelectricalandthermalloadingperformances. PROPERTY TESTINGCONDITIONS UNITS VALUE Color White Appearance Compate Density g/cm3 3.7 WaterAbsorption % 0 Mediumgrainsize μm 3 5 Hardness Loaded4.9N GPa ≥15 BendingStrength MPa ≥274 Coefficientofliner Expansion 20 500°C 1×10-6mm/°C 6.5 7.5 20 800°C 6.5 8.0 ThermalConductivity 20°C W/(m·K) ≥20.9 SpecificHeat kJ/(kg·K) ≥0.8 DielectricStrength KV/mm ≥12 VolumeResistivity 20°C Ω·cm ≥1014 300°C ≥1011 500°C ≥109 DielectricConstant 1MHz 9 10 tangentofDielectricloss 1MHz ≤3×10-4 Surfaceroughness μm 0.3 0.8