What are the uses of metallic silicon?

1. Preparation of high-purity semiconductor: Take high-purity semiconductor materials, and the grade of metallic silicon reaches 99.999(5N). It is a kind of industrial purified elemental silicon, which is mainly used to produce silicone and used in 3C industry.

2. Alloying: Silicon-aluminum alloy is the most commonly used silicon alloy. Si-Al alloy is a strong composite deoxidizer. Replacing pure aluminum in steelmaking process can improve the utilization rate of deoxidizer, purify molten steel and improve the quality of steel.

3. Optical fiber communication material: pure silica can draw high-transparency glass fiber, which is an important material for optical fiber communication, with high communication capacity, no interference from electricity and magnetism, no fear of eavesdropping and high confidentiality.

4. High-temperature resistant materials: Silicon can be used to make cermet composites. This material inherits the advantages of metals and ceramics, and at the same time makes up for their shortcomings. It has the advantages of high temperature resistance, toughness and processability.