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钨单晶, W, 5mm直径, 1mm厚, 4N
钨单晶, W, 5mm直径, 1mm厚, 4N图片
品牌: Goodfellow
纯度含量: 99.99%
产地: 英国
索取资料及报价
品牌: Goodfellow
纯度含量: 99.99%
产地: 英国
半岛bd体育手机客户端 介绍

When requesting a quotation please specify the material, dimensions, orientation, type and concentration of dopants, surface finish and quantity required.

Although this crystal is normally held in stock ready for immediate shipment it is an example of crystals which may be grown to order with a delivery forecast of 20-30 weeks.

订货号 包装规格
915-208-27 1 Piece

半岛bd体育手机客户端 参数

Diameter[直径] 5mm
Orientation[定向/导向] (111)
Polish[抛光] Unpolished
Purity[纯度] 99.99%
Quantity[数量] 1 Piece
Thickness[厚度] 1mm
Mechanical Properties(机械性能)
Bulk modulus ( GPa ) ( Hard ) 311.0
Bulk modulus ( GPa ) ( Soft ) 311.0
Hardness - Vickers ( kgf mm?? ) ( Hard ) 500
Hardness - Vickers ( kgf mm?? ) ( Soft ) 360
Material condition Soft
Material condition Hard
Poisson's ratio ( Hard ) 0.280
Poisson's ratio ( Soft ) 0.280
Tensile modulus ( GPa ) ( Hard ) 411.00
Tensile modulus ( GPa ) ( Soft ) 411.00
Tensile strength ( MPa ) ( Hard ) 1920.00
Tensile strength ( MPa ) ( Soft ) 550.00 - 620.00
Yield strength ( MPa ) ( Soft ) 550.0
Atomic Properties(原子属性)
Atomic number 74
Atomic weight ( amu ) 183.85000
Crystal structure Body Centred Cubic
Electronic structure Xe4f??5d?6s?
Ionisation potential ( No./eV ) 1 / 7.98
Ionisation potential ( No./eV ) 2 / 17.7
Natural isotope distribution ( Mass No./% ) 183 / 14.3
Natural isotope distribution ( Mass No./% ) 182 / 26.3
Natural isotope distribution ( Mass No./% ) 186 / 28.6
Natural isotope distribution ( Mass No./% ) 180 / 0.1
Natural isotope distribution ( Mass No./% ) 184 / 30.7
Photo-electric work function ( eV ) 4.55
Thermal neutron absorption cross-section ( Barns ) 18.5000
Valences shown 2 ,3,4,5,6
Electrical Properties(电气特性)
Electrical resistivity ( μOhmcm ) 5.4@20℃
Superconductivity critical temperature ( K ) 0.0154
Temperature coefficient ( K?? ) 0.00480 @0-100℃
Thermal emf against Pt (cold 0C - hot 100C) ( mV ) 1.12
Thermal Properties(热性能)
Coefficient of thermal expansion ( x10?? K?? ) 4.500 @0-100℃
Latent heat of evaporation ( J g?? ) 4009
Latent heat of fusion ( J g?? ) 192.00
Melting point ( C ) 3410.00
Specific heat ( J K?? kg?? ) 133.0 @25℃
Thermal conductivity ( W m?? K?? ) 173.00 @0-100℃
Physical Properties(物理性质)
Boiling point ( C ) 5660
Density ( g cm?? ) 19.300 @20℃

其他参数

公差

导向 ±3°
直径 仅有名义尺寸
长度 仅有名义尺寸
厚度 仅有名义尺寸
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