Silicon metal powder is a powdery material obtained from silicon metal by processing. The quality of silicon metal powder obtained from different manufacturing processes varies considerably. In addition to silicon metal powder, the manufacturing process also produces a number of other products. The most appropriate method depends on the particular circumstances.
The preparation of silicon metal powder is relatively simple, and the principle behind it is also easy to understand. After a sufficient amount of coarse silicon powder has been dispersed, it is introduced into an inert gas plasma arc and heated instantaneously. As a result, the coarse silicon powder instantly vaporises into silicon vapour at a higher temperature, which then enters the cooling zone and condenses into nanoscale metallic silicon.