China High Frequency Silicon Nitride Sic Ceramic Substrate, Find details about China Silicon Carbide Ceramic, Silicon Carbide Ceramic for LED-TV from High Frequency Silicon Nitride Sic Ceramic Substrate
PROPERTIES PARAMETERS | |||||
Item | Unit | Value | Testing Standards 1 | Testing Standards 2 | |
Color | Light Green | / | / | ||
Specific gravity | G/cm3 | 1.9 | / | / | |
Porosity | % | >30 | GB/T 3810.3-2006 | ASTM C 373 | |
Volume Density | G/cm3 | 1.7~1.9 | GB/T 3810.3-2006 | ASTM C 373 | |
BET Surface Area | Cm2/g | 464629 | BET (V-Sorb 2800 P) | / | |
BJH adsorption average pore diameter | Nm | 11.10 | BET (V-Sorb 2800 P) | / | |
Pore volume | Cm3/g | 0.12 | BET (V-Sorb 2800 P) | / | |
Mechanical Properties | |||||
Mohs Hardness | Mohs | 5~6 | DIN EN101-1992 | / | |
Flexural Strength | MPa | >90 | GB/T 14389-14390 | ASTM C 1674-08 | |
Water Absorption | % | >15 | ASTM D 570-98 | / | |
Thermal conductivity | W/mk | > 9 | HOT DISK | ISO-DIS22007-2.2 | |
Thermal Diffusivity | Mm2/s | 2.80 | HOT DISK | ||
Specific Heat | MJ/ m3K | 2.62 | HOT DISK | ||
Linear Thermal Expansion Coefficient | 10-6m/ºC | 4.02@ RT~300ºC | GB/T 16920-1997 | ASTM C 372 | |
Maximum Operate Temperature | ºC | < 700 | |||
Material Properties | |||||
Silicon carbide | % | 90 |