Basic,knowledge,silicon,metal, business, insurance Basic knowledge of silicon metal
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Which of the microsilica, also known as silicon power, microsilica fume or silica fume, and it is widely used in refractory and concreteindustry. Silicon metal powder: the basic raw material for silicone polymermaterials, such as: silicon the metallurgical foundry, smelting, chemicalproducts, refractories, aluminum and aluminum alloy production and other industry.Crystalline silicon is steel gray, belongs toatomic crystal, hard and shiny, with semiconductor nature. The chemical natureof the silicon is lively, at high temperatures can be combined with oxygen andother elements, do not dissolve in water, nitric acid and hydrochloric acid,dissolved in hydrofluoric acid and lye for made in alloys such as ferrosilicon,silicon, monocrystalline Silicon is an important semiconductor material usedfor manufacturing high-power transistors, rectifiers, solar cells, etc. Siliconis widely distributed in nature, containing about 27.6% of the Earth's crust,mainly in the form of silica and silicates. The crystalline silicon is darkblue, very brittle, and is a typical semiconductor. The chemical nature is verystable. At room temperature, except the hydrofluoric acid, it is difficult toreact with other substances.The high purity single crystalline siliconis an important semiconductor material. A trace amount of a Group IIIA elementincorporated in the single crystal silicon, forming a p-type siliconsemiconductor; incorporation of a trace amount of the element of Group VA, theformation of the n-type and p-type semiconductor combination, can be made ofthe solar cells, turn the radiation into electricity. In the development ofenergy resources, it is a promising material.As the surveys by metal powder supplier, siliconis important materials for cermet and astronautical. Sintered mixture ofceramic and metal, made of metal-ceramic composites, it is high temperaturerich toughness, can be cut, not only inherited the respective advantages ofmetal and ceramic, but also to make up for both birth defects. Can be appliedto the manufacture of military weapons, the first space shuttle "Columbia" canwithstand high-speed walk through the friction heat generated by the denseatmosphere, thanks to its thirty-one thousand silicon watts shell mosaicproject.It can be used for optical fibercommunications, the latest modern means of communication. Drawn out of a hightransparency with a pure silica glass fiber, a laser in the passage of theglass fiber, the total reflection of numerous onward transmission, instead ofthe cumbersome cable. The high capacity of optical fiber communications, glassfibers like a hair can transmit 256 telephone channels at the same time, alsowithout electricity, magnetic interference, and are not afraid of wiretapping,with a high degree of confidentiality. Optical fiber communication will makerevolutionary changes in the lives of the human beings in the 21st century.Due to the unique structure of the organicsilicon, with both the performance of the organic material and inorganicmaterial, having a low surface tension, low viscosity-temperature coefficient,and high compressibility, and high gas permeability basic properties, andhaving a high temperature resistance, electrical insulation resistance,oxidation stability resistance, weather resistance, flame retardant,hydrophobic, corrosion-resistant, non-toxic, odorless and physiologically inertand other outstanding features, widely used in the aerospace, electrical andelectronics, construction, transportation, chemical industry, textile, food,light industry, medical industry, The silicone is mainly used in sealing,bonding, lubrication, coatings, surfactants, mold release, anti-foaming,defoaming, waterproof, moisture-proof, inert fillers. With the continued growthof the number and variety of organic silicon, the applications is continue towiden, the formation of new chemical materials sector is unique product system,many varieties can not be replaced by other chemicals but essential.Source:http://www.mhcmp.com Article Tags: Silicon Metal, Crystalline Silicon, Optical Fiber
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