| Purity[纯度] |
99.99% |
| Thickness[厚度] |
0.0025mm |
| Typical Analysis(典型分析) |
| Al |
<3 PPM |
| Ca |
<2 PPM |
| Cr |
<6 PPM |
| Cu |
<10 PPM |
| Fe |
<10 PPM |
| Mg |
<1 PPM |
| Mn |
<1 PPM |
| Nb |
<5 PPM |
| Ni |
<3 PPM |
| S |
<1 PPM |
| Si |
<5 PPM |
| V |
<3 PPM |
| Zn |
<1 PPM |
| Zr |
<3 PPM |
| Atomic Properties(原子属性) |
| Atomic number |
22 |
| Atomic weight ( amu ) |
47.88000 |
| Crystal structure |
Hexagonal Close Packed |
| Electronic structure |
Ar3d?4s? |
| Ionisation potential ( No./eV ) |
3 / 27.5 |
| Ionisation potential ( No./eV ) |
4 / 43.3 |
| Ionisation potential ( No./eV ) |
5 / 99.2 |
| Ionisation potential ( No./eV ) |
1 / 6.82 |
| Ionisation potential ( No./eV ) |
2 / 13.6 |
| Ionisation potential ( No./eV ) |
6 / 119 |
| Natural isotope distribution ( Mass No./% ) |
50 / 5.3 |
| Natural isotope distribution ( Mass No./% ) |
49 / 5.5 |
| Natural isotope distribution ( Mass No./% ) |
46 / 8.0 |
| Natural isotope distribution ( Mass No./% ) |
48 / 73.7 |
| Natural isotope distribution ( Mass No./% ) |
47 / 7.5 |
| Photo-electric work function ( eV ) |
4.10 |
| Thermal neutron absorption cross-section ( Barns ) |
6.1000 |
| Valences shown |
2 ,3,4 |
| Thermal Properties(热性能) |
| Coefficient of thermal expansion ( x10?? K?? ) |
8.900 @0-100℃ |
| Latent heat of evaporation ( J g?? ) |
8893 |
| Latent heat of fusion ( J g?? ) |
365.00 |
| Melting point ( C ) |
1660.00 |
| Specific heat ( J K?? kg?? ) |
523.0 @25℃ |
| Thermal conductivity ( W m?? K?? ) |
21.90 @0-100℃ |
| Mechanical Properties(机械性能) |
| Bulk modulus ( GPa ) ( Polycrystalline ) |
108.4 |
| Hardness - Vickers ( kgf mm?? ) ( Annealed ) |
60 |
| Izod toughness ( J m?? ) ( Annealed ) |
61 |
| Material condition |
Polycrystalline |
| Material condition |
Annealed |
| Poisson's ratio ( Polycrystalline ) |
0.361 |
| Tensile modulus ( GPa ) ( Polycrystalline ) |
120.20 |
| Tensile strength ( MPa ) ( Annealed ) |
230.00 - 460.00 |
| Yield strength ( MPa ) ( Annealed ) |
140.0 - 250.0 |
| Physical Properties(物理性质) |
| Boiling point ( C ) |
3287 |
| Density ( g cm?? ) |
4.500 @20℃ |
| Electrical Properties(电气特性) |
| Electrical resistivity ( μOhmcm ) |
54@20℃ |
| Superconductivity critical temperature ( K ) |
0.4000 |
| Temperature coefficient ( K?? ) |
0.00380 @0-100℃ |
