Near spherical tungsten carbide powder has good fluidity, good wear resistance and excellent overall performance. It is the main raw material for the preparation of high-quality tungsten-based electrical contact materials, electronic packaging materials, etc. It can be prepared by ultra-high temperature melting inert gas atomization.
Applications
Near spherical tungsten carbide powder has good performance and is the main raw material for the preparation of high-quality tungsten-based electrical contact materials, electronic packaging materials, sputtering targets for integrated circuit refractory grids and barrier layers, and electron emission materials.
Preparation
Near spherical tungsten carbide powder can be prepared by ultra-high temperature melting inert gas atomization. The temperature should be above 2700°C. When atomized at 2800°C to 3000°C, the sphericity and spheroidization rate of the powder will increase as the atomization temperature increases. As the pressure of the atomizing gas increases, the sphericity of the resulting powder increases.
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