Metallic-Silicon

Silicon metal (chemical symbol Si) is a very common element, accounting for 26.4% in the earth's crust, second only to oxygen (49.4%). However, silicon rarely appears in the form of simple substance in nature, but widely exists in rocks, gravel and dust in the form of complex silicate or silica. Simple silicon is smelted by Shi Ying and coke in an electric furnace, and it is called metallic silicon, also known as crystalline silicon or.
Industrial silicon, the main component of silicon content of about 98%, the remaining impurities for iron, aluminum, calcium and so on. Its main use is as a non - iron based alloy additives. Metal silicon is widely used, mainly for metallurgical deoxidation, aluminum alloy, as well as the production of polysilicon, single crystal silicon. Also used to produce high-purity semiconductors, high-temperature materials, optical fiber communication materials, silicone compounds, is widely used in aerospace, electronic and electrical, construction, transportation, energy, chemical, textile, food, light industry, medical, agriculture and other industries.