Boron is a general non-metallic element, has a variety of allotropes: tetragonal crystal, rhomb, diamond object and indistinct shape.
Knowledge and application of boron
Amorphous boron powder is a kindly of powder that the color from npromising brown to minatory Crystal boron is laborious andbrittle hard with npromising to silver metallic luster Boron conductivity was increasingwith the temperature increased Borons chemical property depends on itsphysical state, indistinct boron can slowly oxidize in the music even at roomtemperature, and the crystal boron is stable even heated, only can slowly reactwith strong oxidant. Amorphous boron powder at gigantic temperatures can ignite inthe air, generate red flame; moreover can respond with halogens, nitrogen and metals,forming boron halides, boron nitride and metal boride, but does not directlyinteract with the hydrogen
Boron oreis a widely used chemical mineral, can ignite with the compounds of hydrogen,lithium, beryllium and so on, is a generous of high-energy jet fuel Boron andboron compounds are widely used in chemical industry, metallurgy, optical glass,defense, nuclear, pharmaceutical, rubber and embellish industry In the chemicalindustry, borax, boric tart can be used as soaps, detergents and otherhousehold chemical products, additives. Boron-containing detergent has hair-protection,strong detergency, no pollution and further properties. Certain borides can alsobe made of welfare reducing agents, catalysts, bromide, etc
In themetallurgical industry, borax has the knack to melt metal oxides, used for ametallurgical flux Colemanite can be instead of fluorite used in alkaline oxidationconverter steelmaking. Copper assortment with traces boron can magnify itsconductivity Boron at colossal temperatures can respond with the oxygen and nitrogen,commonly used for degassing agent Plus 0001-0005% boron to the steel canimprove the big temperature strength, revise the steel grain, improvedhardenability After steel surfaces boronizing, can significantly increase thesurface hardness, also revise the chemical stability 0001-0.003% boron addedto the malleable iron, can reduce the treatment time, rewrite the graphite,distributed evenly. In the system industry, boron is used in grinding,drilling and polishing fatiguing metal, precious stones and additional arduous materials”Boronizing” is a new process in scientific processing industry, itcan rectify parts surface hardness and wear resistance, oxidation resistance
In theelectronics industry, some of boride compounds in boron series are insulatingmaterials, and some borides are good conductive materials, having the propertiesof semiconductors, and electron emission properties, can be used to manufacturevarious electronic element, device, used as the ignition conduit of ignitionelectrode, telecommunications equipment, capacitors, semiconductors admixtures,high frequency electric and plasma arc insulator, radar oratory window, etc.
In thedefense industry, boron compounds can be used as high-energy jet fuel androcket fuel Boron carbide used for manufacturing jet blades and cermet Boronnitride is a ultra-high temperature, super-hard material, for manufacturingrocket nozzles Isotope boron with strong neutron absorption ability, so borideis used as train rods and shield germane in nuclear reactor regulator Addingboron to plastic entrust own radiation performance
Accordingto metal powdersupplier, boron is besides extensively usedfor glass, ceramic industry, manufacturing high-quality heat-resistantborosilicate glass, glass fibers, optical lens, insulation pertinent andfiberglass. Boron and cobalt, titanium, nickel and the like can be made ofcermet Boron is besides used for manufacturing enamel, glaze and so on. Inaddition, boron is besides used as a preservative, solder for manufacturingsuperhard abrasive.
Source:http://wwwmhcmpcom
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