铌,粉末, Nb, 74μm最大粒度
| 品牌: | Goodfellow | | 纯度含量: | 99.85% | | 产地: | 英国 |
产品介绍
| 订货号 | 包装规格 | | Weight | | 604-762-27 | 20g | | 548-472-55 | 50g | | 595-280-43 | 100g | | 410-057-18 | 200g | | 755-506-32 | 300g | | 172-083-15 | 400g | | 817-739-05 | 500g | | 342-234-53 | 1000g | | 210-541-50 | 2000g | | 303-529-34 | 5000g |
产品参数 | Maximum Particle Size[最大粒度] | 74μm | | Purity[纯度] | 99.85% | | Weight[重量] | 20g - 5000g | | Typical Analysis(典型分析) | | B | <10 PPM | | C | 150 PPM | | Ca | 10 PPM | | Co | 10 PPM | | Cu | 50 PPM | | Fe | 100 PPM | | H | 100 PPM | | Mg | 10 PPM | | Mn | 10 PPM | | Mo | 10 PPM | | N | 150 PPM | | Ni | 10 PPM | | O | 3000 PPM | | Si | 50 PPM | | Sn | 10 PPM | | Ta | 700 PPM | | Ti | 10 PPM | | W | 100 PPM | | Zr | 10 PPM | | Mechanical Properties(机械性能) | | Bulk modulus ( GPa ) ( Hard ) | 170.3 | | Bulk modulus ( GPa ) ( Soft ) | 170.3 | | Hardness - Vickers ( kgf mm⁻² ) ( Hard ) | 160 | | Hardness - Vickers ( kgf mm⁻² ) ( Soft ) | 115 | | Izod toughness ( J m⁻¹ ) ( Soft ) | 10 - 120 | | Material condition | Hard | | Material condition | Soft | | Poisson's ratio ( Hard ) | 0.397 | | Poisson's ratio ( Soft ) | 0.397 | | Tensile modulus ( GPa ) ( Hard ) | 104.90 | | Tensile modulus ( GPa ) ( Soft ) | 104.90 | | Tensile strength ( MPa ) ( Hard ) | 585.00 | | Tensile strength ( MPa ) ( Soft ) | 330.00 | | Yield strength ( MPa ) ( Hard ) | 550.0 | | Yield strength ( MPa ) ( Soft ) | 240.0 | | Atomic Properties(原子属性) | | Atomic number | 41 | | Atomic weight ( amu ) | 92.90640 | | Crystal structure | Body Centred Cubic | | Electronic structure | Kr4d⁴5s¹ | | Ionisation potential ( No./eV ) | 3 / 25.0 | | Ionisation potential ( No./eV ) | 2 / 14.3 | | Ionisation potential ( No./eV ) | 6 / 103 | | Ionisation potential ( No./eV ) | 1 / 6.88 | | Ionisation potential ( No./eV ) | 4 / 38.3 | | Ionisation potential ( No./eV ) | 5 / 50.5 | | Photo-electric work function ( eV ) | 4.30 | | Thermal neutron absorption cross-section ( Barns ) | 1.1500 | | Valences shown | 2 , 3, 4, 5 | | Thermal Properties(热性能) | | Coefficient of thermal expansion ( x10⁻⁶ K⁻¹ ) | 7.200 @0-100℃ | | Latent heat of evaporation ( J g⁻¹ ) | 7360 | | Latent heat of fusion ( J g⁻¹ ) | 290.00 | | Melting point ( C ) | 2468.00 | | Specific heat ( J K⁻¹ kg⁻¹ ) | 268.0 @25℃ | | Thermal conductivity ( W m⁻¹ K⁻¹ ) | 53.70 @0-100℃ | | Electrical Properties(电气特性) | | Electrical resistivity ( μOhmcm ) | 16@20℃ | | Superconductivity critical temperature ( K ) | 9.2500 | | Temperature coefficient ( K⁻¹ ) | 0.00260 @0-100℃ | | Physical Properties(物理性质) | | Boiling point ( C ) | 4742 | | Density ( g cm⁻³ ) | 8.570 @20℃ |
易燃 与火焰接触后点燃的化学品，或与水接触后逸出高度易燃气体的化学品。
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