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PtW10 Alloy: Comprehensive Material Profile & Performance Metrics

The platinum-tungsten alloy PtW10, also Pt90W10 or 90Pt10W, is used as contact material.

Properties

General

PropertyTemperatureValue

Density

20.0 °C

21.3 g/cm³

Mechanical

PropertyTemperatureValueComment

Elastic modulus

20.0 °C

250 GPa

Elongation

20.0 °C

3 %

Hardness, Vickers

20.0 °C

410 [-]

Poisson's ratio

23.0 °C

0.39 [-]

Typical for Platinum

Shear modulus

20.0 °C

89 GPa

Tensile strength

20.0 °C

1330 MPa

Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

300.0 °C

7.9E-6 1/K

Melting point

1769 °C

Typical for Platinum

Specific heat capacity

23.0 °C

136 J/(kg·K)

Typical for Platinum

Thermal conductivity

23.0 °C

69 - 73 W/(m·K)

Typical for Platinum

Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

7.7E-7 Ω·m

Chemical properties

PropertyValue

Platinum

90 %

Tungsten

10 %


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