铱,块, Ir, 15mm Max. Lump Size, 3N
| 品牌: | Goodfellow | | 纯度含量: | 99.9% | | 产地: | 英国 |
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介绍
| 订货号 | 包装规格 | | Weight | | 188-857-18 | 2g | | 634-594-89 | 5g | | 650-748-33 | 10g |
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参数 | Maximum Lump Size[] | 15mm | | Purity[纯度] | 99.9% | | Weight[重量] | 2g - 10g | | Typical Analysis(典型分析) | | Ag | 1 PPM | | Al | 5 PPM | | Ba | 10 PPM | | Ca | 30 PPM | | Cu | 1 PPM | | Fe | 30 PPM | | Mg | 1 PPM | | Na | 20 PPM | | Pb | 30 PPM | | Pd | 20 PPM | | Pt | 20 PPM | | Rh | 200 PPM | | Ru | 5 PPM | | Si | 20 PPM | | Atomic Properties(原子属性) | | Atomic number | 77 | | Atomic weight ( amu ) | 192.22000 | | Crystal structure | Face Centred Cubic | | Electronic structure | Xe4f¹⁴5d⁷6s² | | Natural isotope distribution ( Mass No./% ) | 191 / 37.3 | | Natural isotope distribution ( Mass No./% ) | 193 / 62.7 | | Photo-electric work function ( eV ) | 4.60 | | Thermal neutron absorption cross-section ( Barns ) | 425.0000 | | Valences shown | 3 , 4 | | Thermal Properties(热性能) | | Coefficient of thermal expansion ( x10⁻⁶ K⁻¹ ) | 6.800 @0-100℃ | | Latent heat of evaporation ( J g⁻¹ ) | 3186 | | Latent heat of fusion ( J g⁻¹ ) | 135.00 | | Melting point ( C ) | 2410.00 | | Specific heat ( J K⁻¹ kg⁻¹ ) | 133.0 @25℃ | | Thermal conductivity ( W m⁻¹ K⁻¹ ) | 147.00 @0-100℃ | | Mechanical Properties(机械性能) | | Bulk modulus ( GPa ) ( Hard ) | 371.0 | | Bulk modulus ( GPa ) ( Soft ) | 371.0 | | Hardness - Vickers ( kgf mm⁻² ) ( Hard ) | 650 | | Hardness - Vickers ( kgf mm⁻² ) ( Soft ) | 200 - 300 | | Material condition | Soft | | Material condition | Hard | | Poisson's ratio ( Hard ) | 0.260 | | Poisson's ratio ( Soft ) | 0.260 | | Tensile modulus ( GPa ) ( Hard ) | 528.00 | | Tensile modulus ( GPa ) ( Soft ) | 528.00 | | Tensile strength ( MPa ) ( Hard ) | 1200.00 | | Tensile strength ( MPa ) ( Soft ) | 550.00 - 1100.00 | | Physical Properties(物理性质) | | Boiling point ( C ) | 4130 | | Density ( g cm⁻³ ) | 22.400 @20℃ | | Electrical Properties(电气特性) | | Electrical resistivity ( μOhmcm ) | 5.1@20℃ | | Superconductivity critical temperature ( K ) | 0.1100 | | Temperature coefficient ( K⁻¹ ) | 0.00450 @0-100℃ | | Thermal emf against Pt (cold 0C - hot 100C) ( mV ) | 0.65 |
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