Silicon Carbide, Alpha SiC
Categories: Ceramic; Carbide
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Physical PropertiesMetricEnglishComments
Density 3.10 g/cc0.112 lb/in³sintered
 3.21 g/cc0.116 lb/in³crystalline
a Lattice Constant 3.0817 Å3.0817 Å
c Lattice Constant 15.1183 Å15.1183 Å
 
Mechanical PropertiesMetricEnglishComments
Modulus of Elasticity 410 GPa59500 ksisintered
Compressive Strength 4600 MPa667000 psisintered
Poissons Ratio 0.140.14sintered
Fracture Toughness 4.60 MPa-m½4.19 ksi-in½sintered
Shear Modulus 180 GPa26100 ksiCalculated
 
Electrical PropertiesMetricEnglishComments
Magnetic Susceptibility -0.00000640-0.00000640Atomic (cgs)
Dielectric Constant 10.210.2
Band Gap 2.86 eV2.86 eV
Electron Mobility, cm²/V-s 400400
 
Thermal PropertiesMetricEnglishComments
Specific Heat Capacity 0.670 J/g-°C0.160 BTU/lb-°Fsintered
Thermal Conductivity  77.5 W/m-K
@Temperature 400 °C		538 BTU-in/hr-ft²-°F
@Temperature 752 °F		sintered
 125.6 W/m-K
@Temperature 200 °C		871.7 BTU-in/hr-ft²-°F
@Temperature 392 °F		sintered
Melting Point 2797 °C5067 °F
 
Optical PropertiesMetricEnglishComments
Refractive Index 2.672.67
 
Descriptive Properties
CAS Number409-21-2

References for this datasheet.

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