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材料 >> 金属材料
钽,箔, Ta, Annealed Temper, 0.5mm厚, 3N
钽,箔, Ta, Annealed Temper, 0.5mm厚, 3N图片
品牌: Goodfellow
纯度含量: 99.9%
产地: 英国
索取资料及报价
品牌: Goodfellow
纯度含量: 99.9%
产地: 英国
半岛bd体育手机客户端 介绍
订货号 包装规格
Disc
898-338-54 4mm
292-321-09 6mm
540-131-37 8mm
516-423-12 10mm
552-895-48 15mm
911-782-77 25mm
379-935-28 25mm x 25mm
491-902-49 50mm x 50mm
487-801-42 100mm x 100mm

半岛bd体育手机客户端 参数

Diameter[直径] 4mm - 25mm
Purity[纯度] 99.9%
Temper[状态] Annealed
Thickness[厚度] 0.5mm
Typical Analysis(典型分析)
Al 5 PPM
Ca 2 PPM
Co 1 PPM
Cr 5 PPM
Cu 2 PPM
Fe 30 PPM
Mg 5 PPM
Mn 2 PPM
Mo 100 PPM
Na 10 PPM
Nb <500 PPM
Ni 3 PPM
Si 10 PPM
Sn 2 PPM
Ti 20 PPM
V 5 PPM
W 100 PPM
Zr 10 PPM
Mechanical Properties(机械性能)
Bulk modulus ( GPa ) ( Hard ) 196.3
Bulk modulus ( GPa ) ( Soft ) 196.3
Hardness - Vickers ( kgf mm?? ) ( Hard ) 200
Hardness - Vickers ( kgf mm?? ) ( Soft ) 90
Material condition Hard
Material condition Soft
Poisson's ratio ( Hard ) 0.342
Poisson's ratio ( Soft ) 0.342
Tensile modulus ( GPa ) ( Hard ) 185.70
Tensile modulus ( GPa ) ( Soft ) 185.70
Tensile strength ( MPa ) ( Hard ) 760.00
Tensile strength ( MPa ) ( Soft ) 172.00 - 207.00
Yield strength ( MPa ) ( Hard ) 705.0
Yield strength ( MPa ) ( Soft ) 310.0 - 380.0
Atomic Properties(原子属性)
Atomic number 73
Atomic weight ( amu ) 180.94790
Crystal structure Body Centred Cubic
Electronic structure Xe4f??5d?6s?
Ionisation potential ( No./eV ) 1 / 7.88
Ionisation potential ( No./eV ) 2 / 16.2
Natural isotope distribution ( Mass No./% ) 180 / 0.012
Natural isotope distribution ( Mass No./% ) 181 / 99.988
Photo-electric work function ( eV ) 4.10
Thermal neutron absorption cross-section ( Barns ) 22.0000
Valences shown 2 ,3,4,5
Electrical Properties(电气特性)
Electrical resistivity ( μOhmcm ) 13.5@20℃
Superconductivity critical temperature ( K ) 4.4700
Temperature coefficient ( K?? ) 0.00350 @0-100℃
Thermal emf against Pt (cold 0C - hot 100C) ( mV ) 0.33
Thermal Properties(热性能)
Coefficient of thermal expansion ( x10?? K?? ) 6.500 @0-100℃
Latent heat of evaporation ( J g?? ) 4165
Latent heat of fusion ( J g?? ) 174.00
Melting point ( C ) 2996.00
Specific heat ( J K?? kg?? ) 140.0 @25℃
Thermal conductivity ( W m?? K?? ) 57.50 @0-100
Physical Properties(物理性质)
Boiling point ( C ) 5425
Density ( g cm?? ) 16.600 @20℃

其他参数

公差

长度 <100mm ±1mm
≥100mm +2% / -1%
直径 <100mm ±1mm
≥100mm +2% / -1%
厚度 <0.01mm ±25%
≤0.05mm ±15%
>0.05mm ±10%
长度 1 <100mm ±1mm
≥100mm +2% / -1%
长度 2 <100mm ±1mm
≥100mm +2% / -1%
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