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铌,粉末, Nb, 74μm最大粒度
铌,粉末, Nb, 74μm最大粒度图片
品牌: Goodfellow
纯度含量: 99.85%
产地: 英国
索取资料及报价
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
604-762-2720g
548-472-5550g
595-280-43100g
410-057-18200g
755-506-32300g
172-083-15400g
817-739-05500g
342-234-531000g
210-541-502000g
303-529-345000g

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
C150 PPM
Ca10 PPM
Co10 PPM
Cu50 PPM
Fe100 PPM
H100 PPM
Mg10 PPM
Mn10 PPM
Mo10 PPM
N150 PPM
Ni10 PPM
O3000 PPM
Si50 PPM
Sn10 PPM
Ta700 PPM
Ti10 PPM
W100 PPM
Zr10 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 conditionHard
Material conditionSoft
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 number41
Atomic weight ( amu )92.90640
Crystal structureBody Centred Cubic
Electronic structureKr4d⁴5s¹
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 shown2 , 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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