What,are,the,basic,knowledge,s education What are the basic knowledge of silicon

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The transducer made ofsilicon - germanium alloy, and its working temperature can reach 1000 ,the mechanical properties and oxidation resistance is very good, is not easy toevaporation and poisoning under high temperature, no matter in vacuum or air itcan work. The heat resistant and very light silicon tile use in space shuttle, whenthe space shuttle back to atmosphere, it can protect fuselage damage from morethan 1000  hightemperature.The using temperature of natural rubber andsynthetic rubber is generally under 150 ,otherwise they will be aging metamorphism. The silicon rubber develop in the1940 s, is a half inorganic high polymer elastomer use silicon and silicon monoxideas primarily chain, with some of the characteristics of inorganic material andorganic material, use temperature scope is broad. Silicone rubber haveexcellent ozone resistance, alkali resistance, physiological inertia (no badeffect to person body, can be used as a certain organs repair materials, suchas the artificial joint) and electrical properties. Some special structure ofthe silicone rubber, with excellent resistance to oil, nairongji, radiationcharacteristics, so the silicone rubber have been widely used in aviation,astronautics technology, electrical and electronic industry.Silica in the water can form gel, so it canproduce a kind of adsorbent - silica gel. Silica gel is a kind of polarityadsorbent, has strong adsorption capacity to H20 and other polar material, always used to do desiccant and adsorbent in industry.The water solution of sodium silicate called water glass, metal powder supplier alwayscall it Na2SiO3 in industry.Wood and cloth soaked in water glass, can anticorrosive, is not easy to fire.Silica sol is use Si02 as the basic unitsof the water dispersion. In the wool textile process, it can be used as a lighttextile sizing glue agent, to reduce the rate of wool fiber end breakage, inthe coating containing silicon sol, can improve the strength of inorganic fibermaterial surface thermal. In enamel vessel manufacturing, add silicon sol, canreduce coefficient of expansion, to improve the adhesivity of ethylene-tetrafluoroethylene,there were also have the same effect in glass and glass ceramic. If adding25-30% of silica sol in the glass, we can produce high quality silicon borateglass. Some sodium borosilicate glass through heat treatment, atomicrealignment, divided into two parts of mutual melting mix. Part of maincontaining silicon oxide, another part mainly containing sodium oxide and boronoxide. If reoccupy acid treatment, then silica will not be influenced by acid andstay, but sodium oxide and boron oxide is soluble in acid, left many empty, so canmake an extensive use of microporous glass. The microporous glass baking,sintering, they get high silica transparent glass. Its high temperatureresistance, good thermal stability, strong ability to get through ultraviolet,can be instead of quartz glass in many ways, suitable for high temperatureobservation window, such as the spacecraft on the observation window. Forced itto observe objects, won't happen deformation, because its optical uniformityalso very good.If add a small amount of silver halide asphotosensitive agent in ordinary sodium aluminum borosilicate glass, tracecopper as sensitizing agent, melting in glass conventional process, annealingthen through an appropriate processing, can made of silver halide color glass.It will be change into different color with light intensity change, it haveimportant applications in strong protection, display device, opticalinformation storage, transportation tools on the windshield, etc.Silica in the glass state is the maincomponent of silicon powder, and thepure silica crystals called quartz. Quartz at 1600 melting into thick liquid, internal into no rules form, when it meet cold again,because of the viscosity it is uneasy to recrystallization, and become quartzglass. It has a lot of special properties, such as it can make visible andultraviolet through it, can use it to manufacture uv lamp and opticalinstrument; Its expansion coefficient is small, can endure temperature change,and has good resistance to acid (except for hydrofluoric acid ), therefore, itoften used to make advanced chemical vessels. Silicon nitride ceramic strengthand hardness is very high, thermal shock resistance and chemical corrosive resistanceare good, small friction coefficient and have since the sex embellish, is akind of superior wear resistant material. Use silicon nitride ceramics made ofmechanical seal, after several hundred to several thousand hours of operation, thewear is still small, compare to the original materials its lifetime improveseveral times to more than ten times.Source:http://www.mhcmp.com