Metallic silicon powder, also known as crystalline silicon powder or industrial silicon powder, is mainly used as an additive for non-ferrous alloys. Silicon is the right and wrong metal element, which appears gray, has metal color, and is hard and brittle.

　　Metal silicon powder is an important material in metallurgy, casting, machinery manufacturing and other industries. The purity of silicon has a great impact on the quality of production, and various industries have higher and higher requirements for its quality. Now, in addition to the determination of impurity elements such as iron, aluminum, calcium, carbon, sulfur and phosphorus, it is also necessary to determine the content of oxygen and nitrogen.

　　Metallic silicon is a semiconductor between conductor and insulator. Semiconductor silicon can form vacancies or capture electrons when doped with different elements, so as to form n-type or p-type semiconductors. Nitrogen in crystalline silicon can react with silicon to form insulating nitride, which plays the role of insulating layer. It can also exist in silicon in various forms to enhance mechanical strength. Nitrogen content is an important means to manipulate the function index of silicon data, and the determination of oxygen content in silicon is one of the important parameters to evaluate the quality of silicon single crystal. Therefore, the accurate determination of oxygen and nitrogen content is a crucial factor to manipulate the function of silicon data.

　　The additional products of metal silicon powder include silicon micro powder, edge skin silicon, black skin silicon, metal silicon slag, etc. Among them, metal silica fume micro powder, also known as silica fume, micro silica fume or silica fume, is widely used in refractory materials and concrete industry.

　　Metal silicon powder is an industrial purified elemental silicon. It is mainly used to produce silicone, prepare high-purity semiconductor materials and prepare alloys for special purposes. In the refractory material industry, it is mainly used as an oxidant.

　　The primary applications of metal silicon powder in industry are as follows:

　　1. Metal silicon powder produces silicone rubber, silicone resin, silicone oil and other silicone. Silicone rubber has good elasticity and high temperature resistance. It is used to make hospital supplies, high temperature resistant gaskets and so on.

　　2. Fabrication of high purity semiconductors with metal silicon powder

　　Modern large-scale integrated circuits are almost made of high-purity metal silicon, and high-purity metal silicon is also the primary material for the production of optical fiber. It can be said that metal silicon has become the fundamental pillar industry in the information age.

　　3. Metal silicon powder alloy

　　Metal silicon powder aluminum alloy is a large amount of silicon alloy. Silicon aluminum alloy is a strong composite Deoxidizer. Replacing pure aluminum in the steelmaking process can improve the utilization rate of deoxidizer, purify liquid steel and improve the quality of steel. Silicon aluminum alloy has low density, low coefficient of thermal expansion and good casting function and anti-wear function. The alloy castings cast with it have high impact resistance and good high-pressure compactness, which can greatly improve the service life. It is commonly used to produce aircraft and auto parts.

　　Article from: circuit board chemical factory