All foils are mounted on a permanent support which cannot be removed without damaging the foil.
订货号 | 包装规格 |
Sizes |
812-439-29 | 25 mm x 25 mm |
315-199-75 | 50 mm x 50 mm |
产品参数
Purity[纯度] | 98.7% |
Support[载体] | 0.125 mm Permanent Polyester |
Thickness[厚度] | 0.001mm |
Typical Analysis(典型分析) |
Al | 40 PPM |
Ca | 100 PPM |
Cr | 4 PPM |
Cu | 8 PPM |
Fe | 40 PPM |
Mg | 100 PPM |
Pb | 1.25 Percent |
Si | 50 PPM |
Mechanical Properties(机械性能) |
Bulk modulus ( GPa ) ( Polycrystalline ) | 118.0 |
Hardness - Mohs ( Polycrystalline ) | 5.00 |
Material condition | Polycrystalline |
Poisson's ratio ( Polycrystalline ) | 0.240 |
Tensile modulus ( GPa ) ( Polycrystalline ) | 191.00 |
Atomic Properties(原子属性) |
Atomic number | 25 |
Atomic weight ( amu ) | 54.93800 |
Crystal structure | Body Centred Cubic |
Electronic structure | Ar3d⁵4s² |
Ionisation potential ( No./eV ) | 2 / 15.64 |
Ionisation potential ( No./eV ) | 3 / 33.67 |
Ionisation potential ( No./eV ) | 4 / 51.2 |
Ionisation potential ( No./eV ) | 6 / 95 |
Ionisation potential ( No./eV ) | 5 / 72.4 |
Ionisation potential ( No./eV ) | 1 / 7.43 |
Photo-electric work function ( eV ) | 3.80 |
Thermal neutron absorption cross-section ( Barns ) | 13.3000 |
Valences shown | 1 , 2, 3, 4, 6, 7 |
Physical Properties(物理性质) |
Boiling point ( C ) | 1962 |
Density ( g cm⁻³ ) | 7.400 @20℃ |
Thermal Properties(热性能) |
Coefficient of thermal expansion ( x10⁻⁶ K⁻¹ ) | 23.000 @0-100℃ |
Latent heat of evaporation ( J g⁻¹ ) | 4207 |
Latent heat of fusion ( J g⁻¹ ) | 267.00 |
Melting point ( C ) | 1244.00 |
Specific heat ( J K⁻¹ kg⁻¹ ) | 477.0 @25℃ |
Thermal conductivity ( W m⁻¹ K⁻¹ ) | 7.81 @0-100℃ |
Electrical Properties(电气特性) |
Electrical resistivity ( μOhmcm ) | 160@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% |