Tolerance on thickness : +/-20%.
| 订货号 | 包装规格 |
| 679-268-75 | 25mm x 25mm |
产品参数
| Purity[纯度] | 99.0% |
| Temper[状态] | As Rolled |
| Thickness[厚度] | 0.15mm |
| Atomic Properties(原子属性) |
| Atomic number | 71 |
| Atomic weight ( amu ) | 174.96700 |
| Crystal structure | Hexagonal Close Packed |
| Electronic structure | Xe4f¹⁴5d¹6s² |
| Ionisation potential ( No./eV ) | 1 / 5.43 |
| Ionisation potential ( No./eV ) | 2 / 13.9 |
| Natural isotope distribution ( Mass No./% ) | 175 / 97.4 |
| Natural isotope distribution ( Mass No./% ) | 176 / 2.6 |
| Photo-electric work function ( eV ) | 3.30 |
| Thermal neutron absorption cross-section ( Barns ) | 75.0000 |
| Valences shown | 3 |
| Thermal Properties(热性能) |
| Coefficient of thermal expansion ( x10⁻⁶ K⁻¹ ) | 12.500 @0-400℃ |
| Latent heat of evaporation ( J g⁻¹ ) | 2155 |
| Latent heat of fusion ( J g⁻¹ ) | 110.00 |
| Melting point ( C ) | 1663.00 |
| Specific heat ( J K⁻¹ kg⁻¹ ) | 155.0 @25℃ |
| Thermal conductivity ( W m⁻¹ K⁻¹ ) | 16.40 @0-100℃ |
| Mechanical Properties(机械性能) |
| Bulk modulus ( GPa ) ( Polycrystalline ) | 42.0 |
| Hardness - Vickers ( kgf mm⁻² ) ( Polycrystalline ) | 85 |
| Material condition | Polycrystalline |
| Poisson's ratio ( Polycrystalline ) | 0.223 |
| Tensile modulus ( GPa ) ( Polycrystalline ) | 84.00 |
| Physical Properties(物理性质) |
| Boiling point ( C ) | 3395 |
| Density ( g cm⁻³ ) | 9.842 @20℃ |
| Electrical Properties(电气特性) |
| Electrical resistivity ( μOhmcm ) | 68@20℃ |
| Superconductivity critical temperature ( K ) | 0.1000 |
| Temperature coefficient ( K⁻¹ ) | 0.00240 @0-100℃ |
其他参数
公差
| 长度 | <100mm | ±1mm |
|---|
| ≥100mm | +2% / -1% |
| 直径 | <100mm | ±1mm |
|---|
| ≥100mm | +2% / -1% |
| 厚度 | <0.01mm | ±25% |
|---|
| ≤0.05mm | ±15% |
| >0.05mm | ±10% |
| 长度 1 | <100mm | ±1mm |
|---|
| ≥100mm | +2% / -1% |
| 长度 2 | <100mm | ±1mm |
|---|
| ≥100mm | +2% / -1% |
易燃
与火焰接触后点燃的化学品，或与水接触后逸出高度易燃气体的化学品。
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