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- Copper-cobalt alloys for semiconductor materials
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Copper Cobalt Alloy nozzle, gas rudder, air rudder, nose cone, the main requirements are required high temperature (3000K ~ 5000K), high temperature airflow scouring ability, the main use of copper volatilization at high temperatures formed by the cooling effect (copper melting point 1083 °C), reduce the surface temperature of tungsten copper to ensure its use under extreme conditions of high temperature.

Commonly used alloys contain 10% to 50% copper. The alloy is prepared by a powder metallurgy method and has good electrical and thermal conductivity, good high temperature strength and certain plasticity. At very high temperatures, such as above 3000°C, the copper in the alloy is liquefied and evaporates, absorbing a lot of heat and lowering the surface temperature of the material. Tungsten-copper electronic packaging and heat sink materials not only have low expansion characteristics of tungsten, but also have high thermal conductivity characteristics of copper. The thermal expansion coefficient and thermal conductivity can be changed by adjusting the composition of tungsten and copper, thus providing more of tungsten and copper. Wide application range.

Because copper tungsten material has high heat resistance and good thermal conductivity, and also matches the thermal expansion coefficient of silicon, gallium arsenide, and ceramic materials, it has been widely used in semiconductor materials. Suitable for high-power device packaging materials, heat sink materials, heat sinks, ceramics, and gallium arsenide bases. Tungsten-copper electronic packaging and heat sink materials not only have low expansion characteristics of tungsten, but also have high thermal conductivity characteristics of copper. The thermal expansion coefficient and thermal conductivity can be changed by adjusting the composition of tungsten and copper, thus providing more of tungsten and copper. Wide application range. Because tungsten copper material has high heat resistance and good thermal conductivity, and also matches the thermal expansion coefficient of silicon, gallium arsenide, and ceramic materials, it has been widely used in semiconductor materials.

Copper tungsten alloys are widely used in high-voltage switches, circuit breakers, and high-voltage vacuum load switches and arresters. Copper tungsten can be used in humid, flammable and corrosive environments. In addition to the conventional macroscopic performance requirements, the porosity and microstructure properties are also required. Therefore, the copper tungsten must adopt a special process that requires vacuum degassing, vacuum infiltration, and other complicated processes.

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  Blog créé le 16-05-2018 à 09h31 | Mis à jour le 16-05-2018 à 09h51 | Note : Pas de note