Sil\u012bcija karb\u012bda pulveris ir dab\u0101 sastopama sil\u012bcija un oglek\u013ca kombin\u0101cija, kas veido \u0101rk\u0101rt\u012bgi cietu, bet vieglu keramikas materi\u0101lu. Za\u013co sil\u012bcija karb\u012bdu, kas ir t\u012brs un bezkr\u0101sains, parasti izmanto abraz\u012bvu izstr\u0101d\u0101jumu, piem\u0113ram, sl\u012bp\u0113\u0161anas disku un grie\u0161anas disku, ra\u017eo\u0161an\u0101, k\u0101 ar\u012b pusvad\u012bt\u0101ju ra\u017eo\u0161an\u0101, kur t\u0101 augstajai t\u012br\u012bbai un elektriskaj\u0101m \u012bpa\u0161\u012bb\u0101m ir iz\u0161\u0137iro\u0161a noz\u012bme.<\/p>\n
SiC, ko parasti d\u0113v\u0113 par karborundu, ir \u0101rk\u0101rt\u012bgi ciets materi\u0101ls, un ciet\u0101ks ir tikai dimants un bora karb\u012bds. Pateicoties t\u0101 \u0101rk\u0101rt\u012bgajai ciet\u012bbai un sp\u0113c\u012bgaj\u0101m fizik\u0101laj\u0101m \u012bpa\u0161\u012bb\u0101m, SiC ir nenov\u0113rt\u0113jams komponents r\u016bpnieciskos lietojumos, kur ir nepiecie\u0161ama iztur\u012bba pret ekstr\u0113miem apst\u0101k\u013ciem. Turkl\u0101t t\u0101 sp\u0113c\u012bg\u0101 iztur\u012bba \u013cauj tam nevainojami iztur\u0113t gan augstas temperat\u016bras, gan elektrisk\u0101s slodzes.<\/p>\n
Kvarca \u0137\u012bmisk\u0101 inertums padara to iztur\u012bgu pret oksid\u0113\u0161anos un cit\u0101m b\u012bstam\u0101m \u0137\u012bmisk\u0101m reakcij\u0101m, nodro\u0161inot laboratorijas vid\u0113 augstu t\u012br\u012bbas, precizit\u0101tes un uzticam\u012bbas pak\u0101pi anal\u012btiskajam darbam un eksperimentiem.<\/p>\n
Sil\u012bcija karb\u012bds jau sen tiek izmantots lietojumos, kur nepiecie\u0161ama augsta iztur\u012bba, piem\u0113ram, automa\u0161\u012bnu bremz\u0113s un saj\u016bgos, k\u0101 ar\u012b keramikas pl\u0101ksn\u0113s, kas atrodamas bru\u0146uvest\u0113s. Nesen sil\u012bcija karb\u012bds ir k\u013cuvis popul\u0101r\u0101ks izmanto\u0161anai elektriskajos transportl\u012bdzek\u013cos, jo tas pal\u012bdz pagarin\u0101t brauk\u0161anas distanci, uzlabojot ener\u0123ijas p\u0101rveido\u0161anas sist\u0113mu efektivit\u0101ti - to var pan\u0101kt, samazinot invertoru izm\u0113ru un svaru, vienlaikus saglab\u0101jot veiktsp\u0113ju -, savuk\u0101rt t\u0101 izol\u0101cijas \u012bpa\u0161\u012bbas pal\u012bdz samazin\u0101t sprieguma k\u0101pumus vai p\u0101rspriegumus, kas var rasties ener\u0123ijas p\u0101rveido\u0161anas sist\u0113m\u0101s.<\/p>\n
Sil\u012bcija karb\u012bda pulveris ir ciets \u0137\u012bmisks savienojums, kas sast\u0101v no sil\u012bcija un oglek\u013ca, ko izmanto k\u0101 ener\u0123ijas pusvad\u012bt\u0101ju ar pla\u0161u joslas spraugu, kas sp\u0113j iztur\u0113t augstas temperat\u016bras. Dab\u0101 sastopams k\u0101 moisan\u012bta d\u0101rgakmens, masveid\u0101 ra\u017eots graudu un pulvera veid\u0101, un to pla\u0161i izmanto ar\u012b abraz\u012bvos vai funkcion\u0101l\u0101s keramikas izstr\u0101d\u0101jumos.<\/p>\n
Varim ir izcila siltumvad\u012btsp\u0113ja un iztur\u012bba pret koroziju, t\u0101p\u0113c tas ir ide\u0101ls materi\u0101ls, ko izmantot abraz\u012bviem izstr\u0101d\u0101jumiem, piem\u0113ram, str\u016bklas str\u016bklas sprausl\u0101m un ciklonu komponentiem. Turkl\u0101t to pla\u0161i izmanto funkcion\u0101laj\u0101 keramik\u0101, modernos ugunsiztur\u012bgos materi\u0101los un metalur\u0123ijas izejmateri\u0101los.<\/p>\n
Melno SiC pla\u0161i izmanto sil\u012bcija pl\u0101k\u0161\u0146u un substr\u0101tu ra\u017eo\u0161an\u0101, ko izmanto ener\u0123ijas pusvad\u012bt\u0101ju, LED, optoelektronisko ier\u012b\u010du un elektrisko transportl\u012bdzek\u013cu ra\u017eo\u0161an\u0101. No meln\u0101 SiC izgatavotas sl\u012bp\u0113tas un sl\u012bp\u0113tas virsmas tiek izmantotas elektrisko transportl\u012bdzek\u013cu korpusiem, lai ieg\u016btu prec\u012bzus izm\u0113rus ar glud\u0101m virsm\u0101m prec\u012bziem izm\u0113riem un gludu apdari, palielinot akumulatora darb\u012bbas laiku un brauk\u0161anas diapazonu, vienlaikus samazinot jaudas p\u0101rveidot\u0101ju\/p\u0101rveidot\u0101ju izm\u0113ru\/masu. \u0100trgaitas vilcienos melno SiC izmanto ar\u012b t\u0101 ciet\u012bbas, nodilumiztur\u012bbas un elektrisko \u012bpa\u0161\u012bbu d\u0113\u013c.<\/p>\n
Sil\u012bcija karb\u012bds ir viens no vissmag\u0101kajiem cilv\u0113cei zin\u0101majiem materi\u0101liem, kura ciet\u012bba ir 32 GPa - ar to p\u0113c ciet\u012bbas var sacensties tikai dimants un bora karb\u012bds. Turkl\u0101t \u0161im materi\u0101lam piem\u012bt izcila lieces iztur\u012bba, l\u016bzuma iztur\u012bba un iztur\u012bba pret plaisu izplat\u012b\u0161anos - \u012bpa\u0161\u012bbas, kas to padara \u013coti iztur\u012bgu.<\/p>\n
SiC ir paz\u012bstams ar savu augsto Junga moduli un 490 MPa stiepes iztur\u012bbu, kas to padara piem\u0113rotu ekstr\u0113m\u0101m slodz\u0113m bez plais\u0101\u0161anas zem spiediena. Turkl\u0101t SiC sast\u0101vs padara to notur\u012bgu pret sk\u0101bju vai s\u0101rmu iedarb\u012bbu, bet t\u0101 augst\u0101 temperat\u016bras tolerance \u013cauj iztur\u0113t pat 1600 gr\u0101du temperat\u016bru, necie\u0161ot boj\u0101jumus.<\/p>\n
Sil\u012bcija karb\u012bds (SiC) ir neorganisks \u0137\u012bmisks savienojums, kas sast\u0101v no sil\u012bcija un oglek\u013ca. Lai gan dab\u0101 tas sastopams k\u0101 moizan\u012bta d\u0101rgakmens, sil\u012bcija karb\u012bda graudi\u0146us var ar\u012b komerci\u0101li ra\u017eot izmanto\u0161anai abraz\u012bvos un sa\u0137epin\u0101t keramikas komponentos automobi\u013cu brem\u017eu klu\u010diem, k\u0101 ar\u012b sa\u0137epin\u0101t keramikas komponentos, kas satur SCF, lai ra\u017eotu keramikas kr\u0101\u0161\u0146u m\u0113be\u013cu un t\u012b\u0123e\u013cu sa\u0137epin\u0101tos komponentus; sa\u0137epin\u0101ti sil\u012bcija karb\u012bda komponenti jau gadu desmitiem ir k\u013cuvu\u0161i ar\u012b par galvenaj\u0101m sast\u0101vda\u013c\u0101m augstas temperat\u016bras keramikas ra\u017eo\u0161anas procesos keramikas r\u016bpniec\u012bbas ugunsiztur\u012bgajos materi\u0101los. Tam ir b\u016btiska noz\u012bme augstas temperat\u016bras met\u0101lu metalur\u0123ij\u0101 k\u0101 deoksid\u0113t\u0101jam un augstas temperat\u016bras materi\u0101lam.<\/p>\n
T\u012brs graf\u012bts ir elektriskais izolators, tom\u0113r, ja tas sajauc ar t\u0101diem piemais\u012bjumiem k\u0101 alum\u012bnijs, bors un gallijs, tas k\u013c\u016bst par pla\u0161as joslas starp\u012bbas pusvad\u012bt\u0101ju ar pla\u0161\u0101m joslas atstarp\u0113m elektronisko ier\u012b\u010du izgatavo\u0161anai paaugstin\u0101t\u0101 temperat\u016br\u0101 un spriegum\u0101.<\/p>\n
P\u0101rtikas p\u0101rstr\u0101des uz\u0146\u0113mumi cen\u0161as pan\u0101kt liel\u0101ku efektivit\u0101ti un dro\u0161\u012bbu, t\u0101p\u0113c za\u013cais sil\u012bcija karb\u012bda pulveris ir k\u013cuvis noz\u012bm\u012bgs k\u0101 piedeva p\u0101rstr\u0101des iek\u0101rt\u0101m. T\u0101 sp\u0113ja pretoties karstumam un nodilumam ir papildu priek\u0161roc\u012bba, kas nodro\u0161ina lab\u0101kus apstr\u0101des rezult\u0101tus.<\/p>","protected":false},"excerpt":{"rendered":"
Silicon Carbide Powder – High Performance Abrasive for Industrial Applications Silicon carbide powder is a naturally-occurring combination of silicon and […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"categories":[5],"tags":[],"class_list":["post-356","post","type-post","status-publish","format-standard","hentry","category-product-related"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/siliconcarbideceramic.net\/lv\/wp-json\/wp\/v2\/posts\/356","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/siliconcarbideceramic.net\/lv\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/siliconcarbideceramic.net\/lv\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/lv\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/lv\/wp-json\/wp\/v2\/comments?post=356"}],"version-history":[{"count":1,"href":"https:\/\/siliconcarbideceramic.net\/lv\/wp-json\/wp\/v2\/posts\/356\/revisions"}],"predecessor-version":[{"id":357,"href":"https:\/\/siliconcarbideceramic.net\/lv\/wp-json\/wp\/v2\/posts\/356\/revisions\/357"}],"wp:attachment":[{"href":"https:\/\/siliconcarbideceramic.net\/lv\/wp-json\/wp\/v2\/media?parent=356"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/lv\/wp-json\/wp\/v2\/categories?post=356"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/lv\/wp-json\/wp\/v2\/tags?post=356"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}