| Purity[纯度] | 97.0% |
| Thickness[厚度] | 0.004mm |
| Typical Analysis(典型分析) |
| Al | 30 PPM |
| C | 30 PPM |
| Cr | <50 PPM |
| Cu | <50 PPM |
| Fe | 100 PPM |
| Mg | <10 PPM |
| Mo | <10 PPM |
| N | 10 PPM |
| Nb | <50 PPM |
| O | 150 PPM |
| Ta | <100 PPM |
| Ti | 25 PPM |
| U | 0.5 PPM |
| W | <50 PPM |
| Zr | 2.8 Percent |
| Mechanical Properties(机械性能) |
| Bulk modulus ( GPa ) ( Hard ) | 109.0 |
| Bulk modulus ( GPa ) ( Soft ) | 109.0 |
| Hardness - Vickers ( kgf mm⁻² ) ( Soft ) | 150 - 180 |
| Material condition | Hard |
| Material condition | Soft |
| Poisson's ratio ( Hard ) | 0.260 |
| Poisson's ratio ( Soft ) | 0.260 |
| Tensile modulus ( GPa ) ( Hard ) | 141.00 |
| Tensile modulus ( GPa ) ( Soft ) | 141.00 |
| Tensile strength ( MPa ) ( Hard ) | 745.00 |
| Tensile strength ( MPa ) ( Soft ) | 445.00 |
| Yield strength ( MPa ) ( Hard ) | 365.0 |
| Yield strength ( MPa ) ( Soft ) | 240.0 |
| Atomic Properties(原子属性) |
| Atomic number | 72 |
| Atomic weight ( amu ) | 178.49000 |
| Crystal structure | Hexagonal Close Packed |
| Electronic structure | Xe4f¹⁴5d²6s² |
| Ionisation potential ( No./eV ) | 3 / 23.3 |
| Ionisation potential ( No./eV ) | 1 / 7.0 |
| Ionisation potential ( No./eV ) | 2 / 14.9 |
| Ionisation potential ( No./eV ) | 4 / 33.3 |
| Natural isotope distribution ( Mass No./% ) | 179 / 13.8 |
| Natural isotope distribution ( Mass No./% ) | 176 / 5.2 |
| Natural isotope distribution ( Mass No./% ) | 180 / 35.2 |
| Natural isotope distribution ( Mass No./% ) | 174 / 0.2 |
| Natural isotope distribution ( Mass No./% ) | 177 / 18.5 |
| Natural isotope distribution ( Mass No./% ) | 178 / 27.1 |
| Photo-electric work function ( eV ) | 3.90 |
| Thermal neutron absorption cross-section ( Barns ) | 103.0000 |
| Valences shown | 4 |
| Physical Properties(物理性质) |
| Boiling point ( C ) | 4602 |
| Density ( g cm⁻³ ) | 13.100 @20℃ |
| Thermal Properties(热性能) |
| Coefficient of thermal expansion ( x10⁻⁶ K⁻¹ ) | 6.000 @0-100℃ |
| Latent heat of evaporation ( J g⁻¹ ) | 3700 |
| Latent heat of fusion ( J g⁻¹ ) | 122.00 |
| Melting point ( C ) | 2227.00 |
| Specific heat ( J K⁻¹ kg⁻¹ ) | 146.0 @25℃ |
| Thermal conductivity ( W m⁻¹ K⁻¹ ) | 23.00 @0-100℃ |
| Electrical Properties(电气特性) |
| Electrical resistivity ( μOhmcm ) | 32.2@20℃ |
| Superconductivity critical temperature ( K ) | 0.1280 |
| Temperature coefficient ( K⁻¹ ) | 0.00440 @0-100℃ |
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