High-Performance Tungsten-Copper Composite (W15Cu) – Superior Thermal & Electrical Properties
WCu composites consist of a porous tungsten matrix infiltrated with approximately 10 - 40 percent by weight of copper. Tungsten-Copper is very resistant to arc erosion, exhibits good electrical conductivity, a high level of thermal conductivity and low thermal expansion.
Properties
General
| Property | Temperature | Value |
|---|---|---|
Density | 23.0 °C | 16.4 g/cm³ |
Thermal
| Property | Temperature | Value |
|---|---|---|
Coefficient of thermal expansion | 22.0 °C | 7.3E-6 1/K |
Thermal conductivity | 23.0 °C | 215 W/(m·K) |
Chemical properties
| Property | Value |
|---|---|
Copper | balance |
Tungsten | 15 % |
Technological properties
| Property | ||
|---|---|---|
| Application areas | WCu is used for the construction of high-voltage circuit breakers (marketed under the name Elmet®) and for erosion electrodes (marketed under the name Sparkal®). WCu composites are also used as base plates and heat spreaders in radar technology, optoelectronics and high frequency electronics. | |
Composite material
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