One piece only remaining.
| 订货号 | 包装规格 |
| Disc |
| 741-977-83 | 60mm |
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参数
| Diameter[直径] | 60mm |
| Purity[纯度] | 99.97% |
| Thickness[厚度] | 25mm |
| Typical Analysis(典型分析) |
| Ag | 1 PPM |
| Al | 5 PPM |
| Ca | 4 PPM |
| Cd | 5 PPM |
| Co | 1 PPM |
| Cr | 200 PPM |
| Cu | 8 PPM |
| Fe | 7 PPM |
| Mg | 1 PPM |
| Mn | 1 PPM |
| Mo | 10 PPM |
| Na | 2 PPM |
| Si | 2 PPM |
| Sn | 5 PPM |
| Electrical Properties(电气特性) |
| Electrical resistivity ( μOhmcm ) | 117@20℃ |
| Temperature coefficient ( K⁻¹ ) | 0.00460 @0-100℃ |
| Thermal emf against Pt (cold 0C - hot 100C) ( mV ) | -7.34 |
| Mechanical Properties(机械性能) |
| Bulk modulus ( GPa ) ( Polycrystalline ) | 31.3 |
| Hardness - Vickers ( kgf mm⁻² ) ( Polycrystalline ) | 16 - 19 |
| Material condition | Polycrystalline |
| Poisson's ratio ( Polycrystalline ) | 0.330 |
| Tensile modulus ( GPa ) ( Polycrystalline ) | 34.00 |
| Thermal Properties(热性能) |
| Coefficient of thermal expansion ( x10⁻⁶ K⁻¹ ) | 13.400 @0-100℃ |
| Latent heat of evaporation ( J g⁻¹ ) | 857 |
| Latent heat of fusion ( J g⁻¹ ) | 52.00 |
| Melting point ( C ) | 271.30 |
| Specific heat ( J K⁻¹ kg⁻¹ ) | 124.0 @25℃ |
| Thermal conductivity ( W m⁻¹ K⁻¹ ) | 7.90 @0-100℃ |
| Atomic Properties(原子属性) |
| Atomic number | 83 |
| Atomic weight ( amu ) | 208.98040 |
| Crystal structure | Rhombohedral |
| Electronic structure | Xe4f¹⁴5d¹⁰6s²6p³ |
| Ionisation potential ( No./eV ) | 5 / 56.0 |
| Ionisation potential ( No./eV ) | 1 / 7.29 |
| Ionisation potential ( No./eV ) | 3 / 25.6 |
| Ionisation potential ( No./eV ) | 4 / 45.3 |
| Ionisation potential ( No./eV ) | 6 / 88.3 |
| Ionisation potential ( No./eV ) | 2 / 16.7 |
| Photo-electric work function ( eV ) | 4.40 |
| Thermal neutron absorption cross-section ( Barns ) | 0.0340 |
| Valences shown | 3 , 5 |
| Physical Properties(物理性质) |
| Boiling point ( C ) | 1560 |
| Density ( g cm⁻³ ) | 9.800 @20℃ |
其他参数
公差
| 长度 | <100mm | ±1mm |
|---|
| ≥100mm | +2% / -1% |
| 直径 | <100mm | ±1mm |
|---|
| ≥100mm | +2% / -1% |
| 厚度 | | ±10% |
|---|
| 陶瓷 | ±20% |
| 复合材料 | ±20% |
| 聚合物 | ±20% |
| 长度 1 | <100mm | ±1mm |
|---|
| ≥100mm | +2% / -1% |
| 长度 2 | <100mm | ±1mm |
|---|
| ≥100mm | +2% / -1% |
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