For high-temperature thermocouples we supply Platinum, Platinum/Rhodium alloys, Tungsten and Tungsten/Rhenium alloys.
Wollaston wire, Silver coated.
Overall outside diameter approx 0.025mm - 0.1mm.
The weight shown is for the Platinum core only.
The Silver outer sheath may be dissolved in aqueous 10% Nitric Acid.
| 订货号 | 包装规格 |
| Length (Round) |
| 967-250-54 | 0.1m |
| 906-323-69 | 0.2m |
| 290-460-34 | 0.5m |
| 307-539-18 | 1m |
| 442-398-44 | 2m |
产品参数
| Diameter[直径] | 0.001mm |
| Grade[等级] | Wollaston Wire |
| Length[长度] | 0.1m - 2m |
| Purity[纯度] | 99.9% |
| Typical Analysis(典型分析) |
| Ag | 25 PPM |
| Au | 40 PPM |
| B | 5 PPM |
| Bi | 1 PPM |
| Ca | 2 PPM |
| Cu | 25 PPM |
| Fe | 50 PPM |
| Ir | 150 PPM |
| Mg | 2 PPM |
| Mn | 2 PPM |
| Ni | 15 PPM |
| Pb | 5 PPM |
| Pd | 150 PPM |
| Rh | 50 PPM |
| Ru | 100 PPM |
| Sb | 20 PPM |
| Si | 3 PPM |
| Sn | 10 PPM |
| Zn | 5 PPM |
| Mechanical Properties(机械性能) |
| Bulk modulus ( GPa ) ( Hard ) | 276.0 |
| Bulk modulus ( GPa ) ( Soft ) | 276.0 |
| Hardness - Vickers ( kgf mm⁻² ) ( Hard ) | 100 |
| Hardness - Vickers ( kgf mm⁻² ) ( Soft ) | 40 |
| Material condition | Hard |
| Material condition | Soft |
| Poisson's ratio ( Hard ) | 0.390 |
| Poisson's ratio ( Soft ) | 0.390 |
| Tensile modulus ( GPa ) ( Hard ) | 170.00 |
| Tensile modulus ( GPa ) ( Soft ) | 170.00 |
| Tensile strength ( MPa ) ( Hard ) | 200.00 - 300.00 |
| Tensile strength ( MPa ) ( Soft ) | 125.00 - 150.00 |
| Yield strength ( MPa ) ( Hard ) | 185.0 |
| Yield strength ( MPa ) ( Soft ) | 14.0 - 35.0 |
| Physical Properties(物理性质) |
| Boiling point ( C ) | 3827 |
| Density ( g cm⁻³ ) | 21.450 @20℃ |
| Thermal Properties(热性能) |
| Coefficient of thermal expansion ( x10⁻⁶ K⁻¹ ) | 9.000 @0-100 |
| Latent heat of evaporation ( J g⁻¹ ) | 2405 |
| Latent heat of fusion ( J g⁻¹ ) | 101.00 |
| Melting point ( C ) | 1772.00 |
| Specific heat ( J K⁻¹ kg⁻¹ ) | 133.0 @025℃ |
| Thermal conductivity ( W m⁻¹ K⁻¹ ) | 71.60 @0-100℃ |
| Electrical Properties(电气特性) |
| Electrical resistivity ( μOhmcm ) | 10.58@20℃ |
| Temperature coefficient ( K⁻¹ ) | 0.00392 @0-100℃ |
| Atomic Properties(原子属性) |
| Atomic number | 78 |
| Atomic weight ( amu ) | 195.08000 |
| Crystal structure | Face Centred Cubic |
| Electronic structure | Xe4f¹⁴5d⁹6s¹ |
| Ionisation potential ( No./eV ) | 1 / 9.0 |
| Ionisation potential ( No./eV ) | 2 / 18.6 |
| Natural isotope distribution ( Mass No./% ) | 192 / 0.79 |
| Natural isotope distribution ( Mass No./% ) | 196 / 25.30 |
| Natural isotope distribution ( Mass No./% ) | 190 / 0.01 |
| Natural isotope distribution ( Mass No./% ) | 195 / 33.80 |
| Natural isotope distribution ( Mass No./% ) | 198 / 7.20 |
| Natural isotope distribution ( Mass No./% ) | 194 / 32.90 |
| Photo-electric work function ( eV ) | 5.30 |
| Thermal neutron absorption cross-section ( Barns ) | 9.0000 |
| Valences shown | 1 ,2,3,4 |
其他参数
公差
