试剂仪器设备原料
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钽,箔, Ta, 0.0015mm厚, 3N
钽,箔, Ta, 0.0015mm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
产品介绍
订货号包装规格
Sizes
981-561-4425mm x 25mm
900-769-8950mm x 50mm

产品参数

Purity[纯度]99.9%
Thickness[厚度]0.0015mm
Typical Analysis(典型分析)
Al5 PPM
Ca2 PPM
Co1 PPM
Cr5 PPM
Cu2 PPM
Fe30 PPM
Mg5 PPM
Mn2 PPM
Mo100 PPM
Na10 PPM
Nb<500 PPM
Ni3 PPM
Si10 PPM
Sn2 PPM
Ti20 PPM
V5 PPM
W100 PPM
Zr10 PPM
Mechanical Properties(机械性能)
Bulk modulus ( GPa ) ( Hard )196.3
Bulk modulus ( GPa ) ( Soft )196.3
Hardness - Vickers ( kgf mm⁻² ) ( Hard )200
Hardness - Vickers ( kgf mm⁻² ) ( Soft )90
Material conditionHard
Material conditionSoft
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 number73
Atomic weight ( amu )180.94790
Crystal structureBody Centred Cubic
Electronic structureXe4f¹⁴5d³6s²
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 shown2 ,3,4,5
Electrical Properties(电气特性)
Electrical resistivity ( μOhmcm )13.5@20℃
Superconductivity critical temperature ( K )4.4700
Temperature coefficient ( K⁻¹ )0.00350 @0-100℃
Thermal emf against Pt (cold 0C - hot 100C) ( mV )0.33
Thermal Properties(热性能)
Coefficient of thermal expansion ( x10⁻⁶ K⁻¹ )6.500 @0-100℃
Latent heat of evaporation ( J g⁻¹ )4165
Latent heat of fusion ( J g⁻¹ )174.00
Melting point ( C )2996.00
Specific heat ( J K⁻¹ kg⁻¹ )140.0 @25℃
Thermal conductivity ( W m⁻¹ K⁻¹ )57.50 @0-100
Physical Properties(物理性质)
Boiling point ( C )5425
Density ( g cm⁻³ )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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