Silicon: physical properties
Mechanical properties
Density properties
Density of solid: 2330 kg m‑3
Molar volume: 12.06 cm3
Elastic properties
Young's modulus: 47 GPa
Rigidity modulus: (no data) GPa
Bulk modulus: 100 GPa
Poisson's ratio: (no data) (no units)
Hardnesses
Mineral hardness: 6.5 (no units)
Brinell hardness: (no data) MN m-2
Vickers hardness: (no data) MN m-2
Electrical properties
Electrical resistivity: about 100000 × 10‑8 Ω m; or mΩ cm
Heat and conduction
Thermal conductivity: 150 W m‑1 K‑1
Coefficient of linear thermal expansion: 2.6 × 10‑6 K‑1
Optical properties
The image above is a virtual representation of silicon metal calculated by Patrick Callet using the complex diectric function of the element only.
Reflectivity: 28 %
Refractive index: (no data) (no units)
Acoustic properties
Velocity of sound: 2200 m s‑1
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