The methods for preparing tungsten copper heat spreaders include powder metallurgy, electric melting, hot isostatic pressing, etc. Among them, powder metallurgy is one of the most commonly used preparation methods. The method is to mix tungsten powder and copper powder in a certain proportion, press, sinter and process them to obtain tungsten copper heat spreaders. The tungsten copper heat spreader prepared by powder metallurgy has high density and performance stability.
The following are its specific steps:
1. Mixing ingredients: Mix tungsten powder and copper powder in a certain proportion.
2. Pressing and molding: Press the mixed powder to form a preform.
3. Sintering and infiltration: Sinter the preform at high temperature to make tungsten and copper atoms penetrate each other to form an alloy.
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