铌,棒, Nb, 12.7mm直径, Annealed Temper, 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 | | Length (Round) | | 510-779-65 | 50mm | | 902-014-28 | 100mm | | 751-783-45 | 200mm | | 972-925-04 | 500mm |
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参数 | Diameter[直径] | 12.7mm | | Length[长度] | 50mm - 500mm | | Purity[纯度] | 99.9% | | Temper[状态] | Annealed | | Typical Analysis(典型分析) | | Al | <10 PPM | | B | 2 PPM | | C | 25 PPM | | Ca | <10 PPM | | Co | <10 PPM | | Cr | <10 PPM | | Cu | <10 PPM | | Fe | <10 PPM | | H | <10 PPM | | Mg | <10 PPM | | Mn | <10 PPM | | Mo | <10 PPM | | N | 35 PPM | | Ni | <10 PPM | | O | 230 PPM | | Si | <10 PPM | | Sn | <10 PPM | | Ta | 255 PPM | | Ti | 20 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℃ |
其他参数 公差 | 直径 | ≤10mm | ±10% |
|---|
| 聚合物 | +20% / -10% | | 陶瓷 | +20% / -10% | |
| >10mm | ±5% | | 陶瓷 | +20% / -10% | | 聚合物 | +20% / -10% | |
| 长度 | <100mm | ±1mm |
|---|
| ≥100mm | +5% / -1% |
| |
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