钨,箔, W, 0.004mm厚
| 品牌: | Goodfellow | | 纯度含量: | 99.95% | | 产地: | 英国 |
产品介绍
| 订货号 | 包装规格 | | Sizes | | 061-468-05 | 25mm x 25mm | | 352-500-05 | 50mm x 50mm |
产品参数 | Purity[纯度] | 99.95% | | Thickness[厚度] | 0.004mm | | Typical Analysis(典型分析) | | C | 30 PPM | | Ca | <20 PPM | | Cu | <20 PPM | | Fe | 20 PPM | | H | 6 PPM | | Mg | <10 PPM | | Mo | 150 PPM | | N | 10 PPM | | Ni | <20 PPM | | O | 30 PPM | | Pb | <50 PPM | | Si | <50 PPM | | Sn | <30 PPM | | Ti | <20 PPM | | Mechanical Properties(机械性能) | | Bulk modulus ( GPa ) ( Hard ) | 311.0 | | Bulk modulus ( GPa ) ( Soft ) | 311.0 | | Hardness - Vickers ( kgf mm⁻² ) ( Hard ) | 500 | | Hardness - Vickers ( kgf mm⁻² ) ( Soft ) | 360 | | Material condition | Soft | | Material condition | Hard | | Poisson's ratio ( Hard ) | 0.280 | | Poisson's ratio ( Soft ) | 0.280 | | Tensile modulus ( GPa ) ( Hard ) | 411.00 | | Tensile modulus ( GPa ) ( Soft ) | 411.00 | | Tensile strength ( MPa ) ( Hard ) | 1920.00 | | Tensile strength ( MPa ) ( Soft ) | 550.00 - 620.00 | | Yield strength ( MPa ) ( Soft ) | 550.0 | | Atomic Properties(原子属性) | | Atomic number | 74 | | Atomic weight ( amu ) | 183.85000 | | Crystal structure | Body Centred Cubic | | Electronic structure | Xe4f¹⁴5d⁴6s² | | Ionisation potential ( No./eV ) | 1 / 7.98 | | Ionisation potential ( No./eV ) | 2 / 17.7 | | Natural isotope distribution ( Mass No./% ) | 183 / 14.3 | | Natural isotope distribution ( Mass No./% ) | 182 / 26.3 | | Natural isotope distribution ( Mass No./% ) | 186 / 28.6 | | Natural isotope distribution ( Mass No./% ) | 180 / 0.1 | | Natural isotope distribution ( Mass No./% ) | 184 / 30.7 | | Photo-electric work function ( eV ) | 4.55 | | Thermal neutron absorption cross-section ( Barns ) | 18.5000 | | Valences shown | 2 ,3,4,5,6 | | Electrical Properties(电气特性) | | Electrical resistivity ( μOhmcm ) | 5.4@20℃ | | Superconductivity critical temperature ( K ) | 0.0154 | | Temperature coefficient ( K⁻¹ ) | 0.00480 @0-100℃ | | Thermal emf against Pt (cold 0C - hot 100C) ( mV ) | 1.12 | | Thermal Properties(热性能) | | Coefficient of thermal expansion ( x10⁻⁶ K⁻¹ ) | 4.500 @0-100℃ | | Latent heat of evaporation ( J g⁻¹ ) | 4009 | | Latent heat of fusion ( J g⁻¹ ) | 192.00 | | Melting point ( C ) | 3410.00 | | Specific heat ( J K⁻¹ kg⁻¹ ) | 133.0 @25℃ | | Thermal conductivity ( W m⁻¹ K⁻¹ ) | 173.00 @0-100℃ | | Physical Properties(物理性质) | | Boiling point ( C ) | 5660 | | Density ( g cm⁻³ ) | 19.300 @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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