品牌: Goodfellow纯度含量: 99.97%产地: 英国
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| 品牌: | Goodfellow | | 纯度含量: | 99.97% | | 产地: | 英国 |
产品介绍 | 订货号 | 包装规格 | | 990-882-17 | 10mm x 10mm | | 523-835-06 | 25mm x 25mm | | 976-562-38 | 50mm x 50mm |
产品参数 | Purity[纯度] | 99.97% | | Thickness[厚度] | 1mm | | 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 |
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| ≥100mm | +2% / -1% | | 直径 | <100mm | ±1mm |
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| ≥100mm | +2% / -1% | | 厚度 | <0.01mm | ±25% |
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| ≤0.05mm | ±15% | | >0.05mm | ±10% | | 长度 1 | <100mm | ±1mm |
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| ≥100mm | +2% / -1% | | 长度 2 | <100mm | ±1mm |
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| ≥100mm | +2% / -1% |
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