| Purity[纯度] |
97.0% |
| Thickness[厚度] |
0.003mm |
| 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?? ) ( 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 |
Xe4f??5d?6s? |
| 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?? ) |
13.100 @20℃ |
| Thermal Properties(热性能) |
| Coefficient of thermal expansion ( x10?? K?? ) |
6.000 @0-100℃ |
| Latent heat of evaporation ( J g?? ) |
3700 |
| Latent heat of fusion ( J g?? ) |
122.00 |
| Melting point ( C ) |
2227.00 |
| Specific heat ( J K?? kg?? ) |
146.0 @25℃ |
| Thermal conductivity ( W m?? K?? ) |
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?? ) |
0.00440 @0-100℃ |
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