Silicio karbid\u0105 galima naudoti kaip abrazyvus, keramikos miltelius ir neper\u0161aunam\u0105 \u0161arv\u0105.<\/p>\n
Karborundas (SiC), kristalinis silicio ir anglies junginys, yra viena i\u0161 kie\u010diausi\u0173 \u017einom\u0173 med\u017eiag\u0173, pasi\u017eymin\u010di\u0173 unikaliomis savyb\u0117mis, d\u0117l kuri\u0173 jis naudingas \u012fvairiose pramon\u0117s \u0161akose.<\/p>\n
Silicio karbidas yra kietas ir trapus, tod\u0117l yra veiksminga abrazyvin\u0117 med\u017eiaga. Gamintojai j\u012f naudoja tokiems gaminiams kaip \u0161vitrinis popierius gaminti; \u0161i med\u017eiaga b\u016bna \u012fvairaus gr\u016bd\u0117tumo - nuo stambi\u0173 iki labai smulki\u0173 gr\u016bd\u0117tumo gr\u016bdeli\u0173, skirt\u0173 \u0161lifavimo operacijoms; stambesni gr\u016bdeliai naudojami dideliems atsarg\u0173 kiekiams \u0161alinti pirminio \u0161lifavimo operacijose, o smulkesni poliruoja ruo\u0161ini\u0173 pavir\u0161ius, kad b\u016bt\u0173 i\u0161gauta lygi apdaila.<\/p>\n
Abrazyvinis silicio karbidas naudojamas gaminiuose, kuriems reikia didel\u0117s i\u0161tverm\u0117s, pavyzd\u017eiui, automobili\u0173 stabd\u017eiuose ir neper\u0161aunamose liemen\u0117se naudojamose keramin\u0117se plok\u0161tel\u0117se. Be to, \u0161i\u0105 med\u017eiag\u0105 taip pat galima rasti kompozitin\u0117se med\u017eiagose, pavyzd\u017eiui, anglies pluo\u0161tu sustiprintame silicio karbide (CFRC).<\/p>\n
Silicio karbidas yra nepakei\u010diama \u017ealiava ugniai atspari\u0173 med\u017eiag\u0173 gamyboje. Jis pasi\u017eymi stabiliomis chemin\u0117mis savyb\u0117mis, dideliu \u0161ilumos laidumu, ma\u017eu \u0161iluminio pl\u0117timosi koeficientu ir puikiu atsparumu dilimui, tod\u0117l yra ideali med\u017eiaga auk\u0161toms temperat\u016broms atsparioms abrazyvin\u0117ms med\u017eiagoms, pavyzd\u017eiui, juostin\u0117ms abrazyvin\u0117ms med\u017eiagoms, \u0161vitriniam popieriui, \u0161lifavimo ratukams, \u0161lifavimo ratukams ir aliejini\u0173 akmen\u0173 \u012frankiams, taip pat monokristalinio silicio ir (arba) polikristalinio silicio stakl\u0117ms gaminti.<\/p>\n
Metalas yra labai kietas ir trapus, ta\u010diau pasi\u017eymi dideliu \u0161iluminiu ir mechaniniu stabilumu. Sudarytas i\u0161 silicio atom\u0173, apsupt\u0173 anglies ir deguonies atom\u0173, jis yra atsparus kar\u0161\u010diui ir mechaniniam poveikiui, taip pat turi \u012fsp\u016bding\u0105 lydymosi temperat\u016br\u0105.<\/p>\n
Grynas silicio karbidas yra bespalvis; pramonin\u0117s klas\u0117s d\u0117l gele\u017eies, aliuminio, azoto ar laisvos anglies intarp\u0173 gali b\u016bti nuo rudos iki juodos spalvos. Egzistuoja papildymo metodai, kuriais sukuriami skirtingi puslaidininkiai: pavyzd\u017eiui, n tipo silicio karbidas gali b\u016bti papildytas azotu arba fosforu, o p tipo versijos gali b\u016bti papildytos aliuminio, boro arba galio priemai\u0161omis.<\/p>\n
Silicio karbidas yra viena kie\u010diausi\u0173 med\u017eiag\u0173 \u017dem\u0117je. Tod\u0117l jis idealiai tinka policijos ir kari\u0161ki\u0173 neper\u0161aunamoms liemen\u0117ms, o d\u0117l savo \u0161ilumini\u0173 savybi\u0173 yra atsparus kar\u0161\u010diui.<\/p>\n
Gerai \u017einoma, kad tokios keramin\u0117s med\u017eiagos kaip \u0161i yra tvirtos. Be to, keramika puikiai praleid\u017eia \u0161ilum\u0105 ir elektr\u0105, tod\u0117l puikiai tinka elektronikos reikm\u0117ms, pavyzd\u017eiui, galios tranzistoriams. Be to, dar vienas privalumas - atsparumas korozijai.<\/p>\n
Grynas silicio karbidas turi daugiasluoksn\u0119 strukt\u016br\u0105 ir egzistuoja \u012fvairi\u0173 politip\u0173 arba atmain\u0173, i\u0161 kuri\u0173 kiekviena i\u0161siskiria savo sud\u0117ties seka, suteikian\u010dia kiekvienam tipui unikali\u0105 fizin\u0119 savyb\u0119, pavyzd\u017eiui, kai kuriose formose yra kovalentiniai ry\u0161iai tarp keturi\u0173 anglies atom\u0173, kovalenti\u0161kai susijungusi\u0173 su vienu silicio atomu ir sudaran\u010di\u0173 sud\u0117ting\u0105 tinklo strukt\u016br\u0105.<\/p>\n
Moisanitas gaminamas sintetiniu b\u016bdu ir gamtoje aptinkamas labai retai, nors nedideli jo kiekiai gali egzistuoti kaip moisanito brangakmeniai. Moisanitui tenka svarbus vaidmuo elektromobiliuose, nes jo geb\u0117jimas atlaikyti auk\u0161t\u0105 temperat\u016br\u0105 leid\u017eia transporto priemon\u0117ms efektyviau naudoti energij\u0105, kartu suma\u017einant aktyvias au\u0161inimo sistemas, kurios didina svor\u012f, s\u0105naudas ir sud\u0117tingum\u0105.<\/p>\n
Silicio karbido keramika yra universali nonooksidin\u0117 keramika, naudojama mechaninio ir \u0161iluminio atsparumo reikalaujan\u010diose srityse, pavyzd\u017eiui, dilimui atsparioms detal\u0117ms, kar\u0161\u010diui atsparioms ugniai atsparioms med\u017eiagoms, ugniai atsparioms med\u017eiagoms, skirtoms \u0161iluminiam pl\u0117timosi reguliavimui, ir puslaidininkin\u0117s elektronikos prietaisams, veikiantiems auk\u0161toje temperat\u016broje arba esant auk\u0161tai \u012ftampai. Silicio karbido kietumas leid\u017eia j\u012f naudoti \u0161ioms reikm\u0117ms, o jo \u0161iluminis laidumas - kaip efektyvi kar\u0161\u010diui atspari med\u017eiaga. Plati jo panaudojimo sri\u010di\u0173 \u012fvairov\u0117 apima ne tik mechanines sritis; keletas pavyzd\u017ei\u0173: abrazyvai, dilimui atsparios detal\u0117s, ugniai atsparios med\u017eiagos, u\u017etikrinan\u010dios atsparum\u0105 kar\u0161\u010diui, ir puslaidininkin\u0117s elektronikos prietaisai, veikiantys atitinkamai auk\u0161toje temperat\u016broje arba esant auk\u0161tai \u012ftampai.<\/p>\n
Kristalinis silicio karbidas sudaro glaud\u017eiai suri\u0161t\u0105 strukt\u016br\u0105, sudaryt\u0105 i\u0161 kovalentiniais ry\u0161iais sujungt\u0173 atom\u0173, kurie sudaro du pirminius koordinacinius tetraedrus, sudarytus i\u0161 keturi\u0173 silicio ir keturi\u0173 anglies atom\u0173, tod\u0117l yra ne\u012ftik\u0117tinai kietas ir stiprus. Deja, jis netirpus vandenyje ar alkoholyje, ta\u010diau atsparus daugumai organini\u0173 ir neorganini\u0173 r\u016bg\u0161\u010di\u0173 \/ drusk\u0173 (i\u0161imtis - fluoro vandenilio r\u016bg\u0161tis ir r\u016bg\u0161tiniai fluoridai).<\/p>\n
Silicio karbido puslaidininkiai pasi\u017eymi pla\u010diu juostos tarpu, kuris leid\u017eia sukurti daug ma\u017eesnius ir efektyvesnius prietaisus nei lygiaver\u010diai silicio (Si) prietaisai, tod\u0117l juos galima naudoti elektrini\u0173 transporto priemoni\u0173 galios elektronikoje ir pramon\u0117s proces\u0173 skaitmeninimo procesuose.<\/p>","protected":false},"excerpt":{"rendered":"
Silicon carbide has many applications and comes in the form of abrasives, ceramic powder and bulletproof armor. Carborundum (SiC), a […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","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":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","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":[3],"tags":[],"class_list":["post-38","post","type-post","status-publish","format-standard","hentry","category-sic-knowledge"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/siliconcarbideceramic.net\/lt\/wp-json\/wp\/v2\/posts\/38","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/siliconcarbideceramic.net\/lt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/siliconcarbideceramic.net\/lt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/lt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/lt\/wp-json\/wp\/v2\/comments?post=38"}],"version-history":[{"count":1,"href":"https:\/\/siliconcarbideceramic.net\/lt\/wp-json\/wp\/v2\/posts\/38\/revisions"}],"predecessor-version":[{"id":39,"href":"https:\/\/siliconcarbideceramic.net\/lt\/wp-json\/wp\/v2\/posts\/38\/revisions\/39"}],"wp:attachment":[{"href":"https:\/\/siliconcarbideceramic.net\/lt\/wp-json\/wp\/v2\/media?parent=38"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/lt\/wp-json\/wp\/v2\/categories?post=38"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/lt\/wp-json\/wp\/v2\/tags?post=38"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}