Applications of high purity silicon metal
Crystalline, high-purity silicon metal is dark black-blue, brittle, and a typical semiconductor. Chemical properties are very stable. At room temperature, it is difficult to react with other substances except hydrogen fluoride.
Applications of high purity silicon metal
1.High purity silicon metal is an important semiconductor material
Doping of high-purity silicon metal with trace amounts of group IIIA elements to form p-type silicon semiconductors; doping with trace amounts of group VA elements to form n-type and p-type semiconductors combined together can be made into solar cells that convert radiation energy into electricity. It is a promising material in the development of energy.
2.High-purity silicon metal is an important material for metal ceramics and spaceflight.
The ceramic and metal mixture sintering, made of metal-ceramic composite, it is high temperature resistance, rich toughness, can be cut, both inherited the respective advantages of metal and ceramic, but also to make up for the inherent defects of both. It can be applied to the manufacture of military weapons. The first space shuttle "Columbia" was able to resist the high temperature generated by friction when passing through the dense atmosphere at high speed, all because of its 31,000 pieces of silicon tiles assembled into a shell.
3.High purity silicon metal for the manufacture of high performance silicone organic compounds
For example, silicone plastic is an excellent material for waterproof coating. Spraying silicone on the four walls of the underground railway can solve the problem of water seepage once and for all. In the ancient cultural relics, sculpture, a thin layer of silicone plastic coating, can prevent the growth of moss, to resist the wind and rain and weathering. The monument to the people's heroes in Tiananmen Square is treated with silicone plastic, so it is always white and fresh.
