Neodymium: physical properties
Mechanical properties
Density properties
Density of solid: 6800 kg m‑3
Molar volume: 20.58 cm3
Elastic properties
Young's modulus: 41 GPa
Rigidity modulus: 16 GPa
Bulk modulus: 32 GPa
Poisson's ratio: 0.28 (no units)
Hardnesses
Mineral hardness: (no data) (no units)
Brinell hardness: 265 MN m-2
Vickers hardness: 343 MN m-2
Electrical properties
Electrical resistivity: 64.3 × 10‑8 Ω m; or mΩ cm
Heat and conduction
Thermal conductivity: 17 W m‑1 K‑1
Coefficient of linear thermal expansion: 9.6 × 10‑6 K‑1
Optical properties
Reflectivity: (no data) %
Refractive index: (no data) (no units)
Acoustic properties
Velocity of sound: 2330 m s‑1
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