W85Cu15 Tungsten Copper Alloy For Heat Sink Material
1. Description Of W85Cu15 Tungsten Copper Alloy For Heat Sink Material:
W85 tungsten-copper alloy heat sink is a sheet composed of 85% tungsten and 15% copper, of which 15±2% copper and 0.5% impurity tungsten. Its density can reach 16.4g/cm3, and its hardness is not lower than HB240. The electrical conductivity is relatively low about 30IACS%, the thermal conductivity is 180-200 (wm/k), the thermal expansion coefficient is 5.8 (10-6K), and the softening temperature is not lower than 900 ℃.
Copper and tungsten are combined to create tungsten copper heat sinks. By adjusting the tungsten content to correspond to the properties of the materials, such as ceramics (Al2O3, BeO), semiconductors (Si), metals (Kovar), etc., the coefficient of thermal expansion (CTE) of the composite can be tailored. In industries including radio frequency, microwave, high power diode packaging, and optical communication systems, the goods are widely used.
2. Physical Properties Of W85Cu15 Tungsten Copper Alloy For Heat Sink Material:
| Heat Sink Material | Desnity (g/cm3) | Thermal expansion coefficient (10-6/℃) | Thermal conductivity (W/m·k) |
| W90Cu10 | 16.75 | 6.5 | 180 |
| W85Cu15 | 16.4 | 7.2 | 190 |
| W80Cu20 | 15.5 | 8.3 | 200 |
| W75Cu25 | 14.5~15 | 9.0 | 230 |
The common size is Length: 5mm-100mm,Width: 5mm-100mm,Thickness: 0.2mm-5.0mm
Or can process as for customer drawing.
3. Advantages Of W85Cu15 Tungsten Copper Alloy For Heat Sink Material:
High thermal conductivity,
Excellent hermetic,
Excellent size control,
surface finish and flatness,
The qualities of WCu and MoCu thermal materials are available in semi-finished or finished (Ni/Au plated) goods.
4. Usage of W85Cu15 Tungsten Copper Alloy For Heat Sink Material:
W85 tungsten-copper alloy material plays an important role in the military field. It can be used as high-temperature parts such as rockets and missiles that are ablated and scoured by high-temperature and high-speed airflow, such as gas rudders, nozzles, throat linings, nose cones, etc. In addition, it can also be used as a drug cover for tank armor-piercing bullets, a tail nozzle for extended-range running, and a track material for electromagnetic guns. With the increasing development of the aerospace industry in various countries, the demand for tungsten copper materials for high temperature will also increase significantly, which also puts forward higher requirements for the quality of tungsten copper materials, especially when its working strength in high temperature environments and Ablation performance under high temperature gas.
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