Terbium - ₆₅Tb: physical properties

Density properties

• Density of solid: 8219 kg m^‑3
• Molar volume: 19.30 cm³

Elastic properties

• Young's modulus: 56 GPa
• Rigidity modulus: 22 GPa
• Bulk modulus: 38.7 GPa
• Poisson's ratio: 0.26 (no units)

Hardnesses

• Mineral hardness: (no data) (no units)
• Brinell hardness: 677 MN m^-2
• Vickers hardness: 863 MN m^-2

Electrical properties

• Electrical resistivity: 115 × 10^‑8 Ω m; or mΩ cm

Heat and conduction

• Thermal conductivity: 11 W m^‑1 K^‑1
• Coefficient of linear thermal expansion: 10.3 × 10^‑6 K^‑1

Optical properties

• Reflectivity: (no data) %
• Refractive index: (no data) (no units)

Acoustic properties

• Velocity of sound: 2620 m s^‑1