Silicon carbide
Parameter SSiC RBSiC Carbide SiC
Purity( % ) >97 >90 30%
Hardness( HRA ) ¡Ý90 ¡Ý90 ¡Ý85
Grain Size( um ) 0.5-0.7 8-20 20-40
Density( g/cm3 ) 3.06-3.15 >3.05 >2.65
Bend Strength( MPa ) 400-580 350-450 200
Compressive Strength(MPa) 3900 >2500 1800
Fracture Toughness( MPA ) 3.05-4.6 4.3
Elastic Modulus( GPa ) 380-410 420
Thermal Conductivity(W/M. K) 102.6 35-110 125
Coefficient of heat Expansion( L/c ) 4.02x10-6 4.3x10-6 3x10-6
Poisson Ratio 0.14 0.15