Metallic Silicon
Silicon is also a good component in aluminum alloys, and most cast aluminum alloys contain silicon. Silicon is the raw material for ultrapure silicon in the electronics industry. Electronic devices made of ultrapure semiconductor single crystal silicon have the advantages of small size, light weight, good reliability and long life. High-power transistors, rectifiers and solar cells made from silicon single crystals doped with specific trace amounts of impurities are better than those made from germanium single crystals.
Crystalline Silicon
Research on amorphous silicon solar cells has progressed rapidly, and the conversion rate has reached more than 8%. The highest operating temperature of the silicon molybdenum rod electric heating element can reach 1700°C, and its resistance is not easy to age and has good anti-oxidation properties. Trichlorosilane produced from silicon can be used to prepare hundreds of silicone lubricants and waterproofing compounds. In addition, silicon carbide can be used as an abrasive, and quartz tubes made of high-purity silicon oxide are important materials for high-purity metal smelting and lighting fixtures.
Crystallized Silicon
Today's electronic computers, due to advances in technology and improvements in materials, can accommodate tens of thousands of transistors on a silicon chip the size of a fingernail; and have a series of functions such as input, output, calculation, storage and control of information. Microporous calcium silicate insulation material Microporous calcium silicate insulation material is an excellent thermal insulation material. It has the characteristics of small heat capacity, high mechanical strength, low thermal conductivity, non-combustible, non-toxic and tasteless, can be cut, and easy to transport. It can be widely used in various thermal equipment and pipelines such as metallurgy, electric power, chemical industry, and ships. After testing, the energy saving efficiency is better than that of asbestos, cement, vermiculite and cement perlite and other insulation materials. Special calcium silicate materials can be used as catalyst carriers and are widely used in petroleum refining, automobile exhaust purification and other aspects.
