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Grade: Wollaston
Formula: Pt90/Rh10
Form: Wire
Material: Platinum/Rhodium Alloy
Commodity: Precious Metals
Wollaston Platinum/Rhodium Alloy Spooled Wire (Pt90/Rh10) is a product within Goodfellow's range of specialty wires. This ultra-fine wire is available in 27 variations of platinum/rhodium alloy compositions. The wire's small diameter makes it ideal for applications like scanning tunneling microscopy, atomic force microscopy, and specialized sensors. The alloy's high stability and resistance to chemical attack also suit it for use in high-temperature thermocouples and other demanding environments. With its selection of sizes and alloy blends, Goodfellow's Wollaston Wire provides researchers and engineers with a versatile option for micro-scale and precision applications.
Tolerances
Wire
| Diameter | ±10% | |
|---|---|---|
| Length | +5% / -1% |
Material Properties for Precious Metals
Mechanical Properties
| Element | Value |
|---|---|
| Hardness - Brinell | 90-165 |
| Elongation at break( % ) | 35 |
| Tensile strength( MPa ) | 320-620 |
Electrical Properties
| Element | Value |
|---|---|
| Electrical resistivity( µOhmcm ) | 18.4-19.2 |
| Temperature coefficient( K⁻¹ ) | 0.0017 |
Thermal Properties
| Element | Value |
|---|---|
| Melting point( C ) | 1830-1855 |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 38@23°C |
Physical Properties
| Element | Value |
|---|---|
| Density( gcm⁻³ ) | 19.97 |