铪,块, Hf, 10mm Max. Lump Size
| 品牌: | Goodfellow | | 纯度含量: | 97.0% | | 产地: | 英国 |
产品介绍
| 订货号 | 包装规格 | | Weight | | 811-550-55 | 10g | | 443-815-05 | 20g | | 476-882-49 | 50g | | 610-300-11 | 100g |
产品参数 | Description[描述] | Sponge | | Maximum Lump Size[] | 10mm | | Purity[纯度] | 97.0% | | Weight[重量] | 10g - 100g | | Typical Analysis(典型分析) | | Al | 30 PPM | | C | 30 PPM | | Cr | <50 PPM | | Cu | <50 PPM | | Fe | 100 PPM | | Mg | <10 PPM | | Mo | <10 PPM | | N | 10 PPM | | Nb | <50 PPM | | O | 150 PPM | | Ta | <100 PPM | | Ti | 25 PPM | | U | 0.5 PPM | | W | <50 PPM | | Zr | 2.8 Percent | | Mechanical Properties(机械性能) | | Bulk modulus ( GPa ) ( Hard ) | 109.0 | | Bulk modulus ( GPa ) ( Soft ) | 109.0 | | Hardness - Vickers ( kgf mm⁻² ) ( Soft ) | 150 - 180 | | Material condition | Hard | | Material condition | Soft | | Poisson's ratio ( Hard ) | 0.260 | | Poisson's ratio ( Soft ) | 0.260 | | Tensile modulus ( GPa ) ( Hard ) | 141.00 | | Tensile modulus ( GPa ) ( Soft ) | 141.00 | | Tensile strength ( MPa ) ( Hard ) | 745.00 | | Tensile strength ( MPa ) ( Soft ) | 445.00 | | Yield strength ( MPa ) ( Hard ) | 365.0 | | Yield strength ( MPa ) ( Soft ) | 240.0 | | Atomic Properties(原子属性) | | Atomic number | 72 | | Atomic weight ( amu ) | 178.49000 | | Crystal structure | Hexagonal Close Packed | | Electronic structure | Xe4f¹⁴5d²6s² | | Ionisation potential ( No./eV ) | 3 / 23.3 | | Ionisation potential ( No./eV ) | 1 / 7.0 | | Ionisation potential ( No./eV ) | 2 / 14.9 | | Ionisation potential ( No./eV ) | 4 / 33.3 | | Natural isotope distribution ( Mass No./% ) | 179 / 13.8 | | Natural isotope distribution ( Mass No./% ) | 176 / 5.2 | | Natural isotope distribution ( Mass No./% ) | 180 / 35.2 | | Natural isotope distribution ( Mass No./% ) | 174 / 0.2 | | Natural isotope distribution ( Mass No./% ) | 177 / 18.5 | | Natural isotope distribution ( Mass No./% ) | 178 / 27.1 | | Photo-electric work function ( eV ) | 3.90 | | Thermal neutron absorption cross-section ( Barns ) | 103.0000 | | Valences shown | 4 | | Physical Properties(物理性质) | | Boiling point ( C ) | 4602 | | Density ( g cm⁻³ ) | 13.100 @20℃ | | Thermal Properties(热性能) | | Coefficient of thermal expansion ( x10⁻⁶ K⁻¹ ) | 6.000 @0-100℃ | | Latent heat of evaporation ( J g⁻¹ ) | 3700 | | Latent heat of fusion ( J g⁻¹ ) | 122.00 | | Melting point ( C ) | 2227.00 | | Specific heat ( J K⁻¹ kg⁻¹ ) | 146.0 @25℃ | | Thermal conductivity ( W m⁻¹ K⁻¹ ) | 23.00 @0-100℃ | | Electrical Properties(电气特性) | | Electrical resistivity ( μOhmcm ) | 32.2@20℃ | | Superconductivity critical temperature ( K ) | 0.1280 | | Temperature coefficient ( K⁻¹ ) | 0.00440 @0-100℃ |
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