| Si (99.9%) | Al2O3 |
Melting point (˚C) | 1414 | 2050 |
Density (Kg/m3) | 2329 | 3980 |
Boiling point (˚C) | 3265 | 2980 |
Atomic mass(Kg/mol) | 2.8082 ´ 10−2 | 1.0196 ´ 10−1 |
Electrical resistivity (Ω∙m) | 2300 | 1 ´ 1011 |
Thermal expansion coefficient (˚C−1) | 7.6 ´ 10−6 C−1 | 8 ´ 10−6 C−1 |
Thermal conductivity (W/(m∙K)) | 149 | 26 - 35 |
Specific heat (J/(g∙K)) | 0.7 | 0.9 |