Metal silicon powder is the raw material used in refractory and powder metallurgy industry.

The main component of metal silicon metal powder is crystalline silicon (SI), the initial form is massive, after crushing or grinding into powder, and metal silicon is also known as crystalline silicon or industrial silicon, its main use is as an additive of non-ferrous alloy. Metallic silicon is a product made of quartz and coke in an electric furnace. The main component of silicon is about 98% (in recent years, 99.99% Si is also contained in metallic silicon), and the rest of impurities are iron, aluminum, calcium, etc.

Semiconductor silicon is used to make high purity metallic silicon for semiconductor devices. They are sold in the form of polycrystalline and single crystal. The former is cheap while the latter is expensive. Because of its different uses, it can be divided into a variety of specifications. The properties of metallic silicon are similar to those of germanium, lead and tin, and have semiconductor properties. Silicon is abundant in the crust, second only to oxygen, accounting for more than a quarter of the total weight of the crust. It exists in the form of silica or silicate. Silicon has two kinds of allotropes: one is dark brown amorphous powder, which is active and can burn in air; the other is stable crystal (crystalline silicon). General silica and quartz are used for glass and other building materials, and high-quality quartz is used for making alloy, metal and monocrystalline silicon.

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