Sil\u012bcija karb\u012bds ir progres\u012bvs materi\u0101ls, kas izstr\u0101d\u0101ts izmanto\u0161anai augstas temperat\u016bras vid\u0113. Tas var\u0113tu samazin\u0101t atkar\u012bbu no akt\u012bv\u0101m dzes\u0113\u0161anas sist\u0113m\u0101m, kas palielina elektrisko transportl\u012bdzek\u013cu (EV) svaru un izmaksas.<\/p>\n
Sil\u012bcija karb\u012bds var lepoties ar desmit reizes liel\u0101ku pretest\u012bbu pret spriegumu nek\u0101 parastais sil\u012bcijs, \u0161aj\u0101 zi\u0146\u0101 pat p\u0101rsp\u0113jot gallija nitr\u012bdu.<\/p>\n
Sil\u012bcija karb\u012bds (SiC) ir r\u016bpniecisks materi\u0101ls ar pla\u0161u pielietojumu. Pateicoties t\u0101 izcilaj\u0101m tribolo\u0123iskaj\u0101m \u012bpa\u0161\u012bb\u0101m, to parasti izmanto str\u016bklas sprausl\u0101s, bl\u012bv\u0113s, meh\u0101niskajos gult\u0146os un meh\u0101niskajos herm\u0113ti\u0137os. SiC izmanto ar\u012b ugunsiztur\u012bgajos materi\u0101los un keramik\u0101, jo tas palielina ciet\u012bbu.<\/p>\n
\u016adens, spirta un sk\u0101bes \u0161\u0137\u012bdumi to piln\u012bb\u0101 iz\u0161\u0137\u012bdina; ar\u012b liel\u0101k\u0101 da\u013ca organisko \u0161\u0137\u012bdin\u0101t\u0101ju saglab\u0101 iztur\u012bbu. T\u0101 k\u0101 tas ir pusvad\u012bt\u0101js, t\u0101 elektrisk\u0101s \u012bpa\u0161\u012bbas ir interesantas - pretest\u012bba da\u017e\u0101dos sast\u0101vos var at\u0161\u0137irties pat par septi\u0146\u0101m k\u0101rt\u0101m!<\/p>\n
Edvards A\u010dons 1891. gad\u0101 pirmo reizi izgatavoja sint\u0113tisko SiC, bet Anr\u012b Mois\u0101ns 1905. gad\u0101, p\u0113tot Diablo kanjona meteor\u012btu Arizon\u0101, pirmo reizi identific\u0113ja t\u0101 dabisko formu. M\u016bsdien\u0101s viss komerci\u0101li p\u0101rdotais SiC ir sint\u0113tisks ar da\u017eiem iz\u0146\u0113mumiem moisan\u012bta d\u0101rgakme\u0146iem, kas var b\u016bt dabiski sastopami.<\/p>\n
Sil\u012bcija karb\u012bds jeb SiC ir izcila keramika, kurai piem\u012bt daudzas izdev\u012bgas fizik\u0101l\u0101s \u012bpa\u0161\u012bbas. T\u0101s ir augsta iztur\u012bba, zems termisk\u0101s izple\u0161an\u0101s \u0101trums un iztur\u012bba pret koroziju un \u0137\u012bmisk\u0101m reakcij\u0101m - \u012bpa\u0161\u012bbas, kas padara to piem\u0113rotu izmanto\u0161anai k\u0101 abraz\u012bvu materi\u0101lu un ugunsiztur\u012bgu sast\u0101vda\u013cu, k\u0101 ar\u012b t\u0101 lielisk\u0101 elektrovad\u012btsp\u0113ja.<\/p>\n
Kriog\u0113n\u0101 ciet\u012bba 9 p\u0113c Mosa skalas padara ugunsiztur\u012bgo porcel\u0101nu par lielisku materi\u0101lu sl\u012bp\u0113\u0161anas rite\u0146iem un citiem abraz\u012bviem izstr\u0101d\u0101jumiem, k\u0101 ar\u012b to izmanto ugunsiztur\u012bgos izstr\u0101d\u0101jumos, piem\u0113ram, deg\u013cu sprausl\u0101s un liesmu caurul\u0113s.<\/p>\n
Kriog\u0113nais graf\u012bts ir sastopams vair\u0101k\u0101s vari\u0101cij\u0101s, ko d\u0113v\u0113 par politipiem, un tam ir prim\u0101rais koordin\u0101cijas tetraedriskais izk\u0101rtojums ar \u010detriem oglek\u013ca un \u010detriem sil\u012bcija atomiem, kas saist\u012bti ar sait\u0113m starp tetraedrisk\u0101m vien\u012bb\u0101m, kuras ir tie\u0161i saist\u012btas. \u0160\u012bs vien\u012bbas p\u0113c tam var savienot kop\u0101 vai sakraut, veidojot da\u017e\u0101das strukt\u016bras.<\/p>\n
Sil\u012bcija karb\u012bds ir iztur\u012bgs, bet trausls materi\u0101ls, kas sp\u0113j iztur\u0113t augstas temperat\u016bras un kam ir pla\u0161a joslas sprauga augstsprieguma lietojumiem.<\/p>\n
R\u016bpniecisk\u0101 m\u0113rog\u0101 sil\u012bcija dioks\u012bda pulveri ra\u017eo un izmanto keramik\u0101, ugunsiztur\u012bgos materi\u0101los un pusvad\u012bt\u0101ju elektronik\u0101. Lai gan moisan\u012bta miner\u0101lu veidojumos ir dabiski sastopams, m\u016bsdien\u0101s liel\u0101ko da\u013cu ra\u017eo sint\u0113tiski.<\/p>\n
Ar m\u0101lu saist\u012btie sil\u012bcija karb\u012bda ugunsiztur\u012bgie materi\u0101li ir \u013coti iztur\u012bgi pret koroziju, t\u0101p\u0113c tie ir piem\u0113roti k\u0101 kr\u0101sns \u0137ie\u0123e\u013ci kr\u0101saino met\u0101lu kaus\u0113\u0161anai. Turkl\u0101t tie ir lieliski netie\u0161\u0101s sild\u012b\u0161anas materi\u0101li augst\u0101s temperat\u016br\u0101s, piem\u0113ram, alum\u012bnija elektrol\u012bzes tvert\u0146u oder\u0113juma \u0137ie\u0123e\u013ci vai rektifik\u0101cijas kr\u0101\u0161\u0146u papl\u0101k\u0161\u0146u oder\u0113jums vara kaus\u0113\u0161anas kr\u0101sn\u012bs vai cinka pulverkr\u0101sns loka pl\u0101tnes.<\/p>\n
Sil\u012bcija karb\u012bds ir \u0101rk\u0101rt\u012bgi ciets, bezoks\u012bda keramikas materi\u0101ls, ko parasti izmanto abraz\u012bvos, ugunsiztur\u012bgajos materi\u0101los, nodilumiztur\u012bgos komponentos un nodilumiztur\u012bgos komponentos, jo tas ir iztur\u012bgs. Turkl\u0101t sil\u012bcija karb\u012bds kalpo k\u0101 neat\u0146emams materi\u0101ls elektronikas sist\u0113m\u0101s, kas darbojas paaugstin\u0101t\u0101 temperat\u016br\u0101 vai spriegum\u0101.<\/p>\n
Dab\u0101 reti sastopams un tikai m\u0101ksl\u012bgi ieg\u016bts ar sint\u0113tisk\u0101m metod\u0113m, moisan\u012bts pirmo reizi tika atkl\u0101ts Arizonas Diablo kanjon\u0101 1893. gad\u0101, kur to v\u0113l\u0101k nosauca par moisan\u012btu p\u0113c Edvarda A\u010dsona 1891. gada patenta par mazu melnu SiC krist\u0101lu rad\u012b\u0161anu ar m\u0101ksl\u012bgiem l\u012bdzek\u013ciem.<\/p>\n
\u0160\u012b kalibra keramikas materi\u0101ls nodro\u0161ina izcilas \u012bpa\u0161\u012bbas. Tam ir augst\u0101ks darba temperat\u016bras diapazons nek\u0101 sil\u012bcija pusvad\u012bt\u0101jiem, un tas var iztur\u0113t augst\u0101ku spriegumu, nep\u0101rkarstot un neboj\u0101jot.<\/p>\n
Sil\u012bcija karb\u012bds ir daudzpus\u012bga ugunsiztur\u012bga keramika, ko izmanto daudzos veidos. Sil\u012bcija karb\u012bds ir viens no ciet\u0101kajiem materi\u0101liem p\u0113c Mosa ciet\u012bbas skalas, p\u0113c ciet\u012bbas tas ie\u0146em 9. vietu. Turkl\u0101t tas var lepoties ar izcilu iztur\u012bbu pret abraziju un koroziju, k\u0101 ar\u012b pret termisko triecienu, vienlaikus izturot augstu temperat\u016bru un spriegumu bez boj\u0101jumiem vai boj\u0101jumiem.<\/p>\n
T\u0101pat k\u0101 liel\u0101kajai da\u013cai krist\u0101lisko strukt\u016bru, ar\u012b t\u0101s krist\u0101liskajai strukt\u016brai ir da\u017e\u0101das formas jeb politipi, un katrai no t\u0101m ir sava sak\u0101rtojuma sec\u012bba. Prim\u0101rie koordin\u0101cijas tetraedri sast\u0101v no \u010detriem oglek\u013ca un \u010detriem sil\u012bcija atomiem, kas savienoti st\u016bros pol\u0101r\u0101s strukt\u016br\u0101s.<\/p>\n
Izcilo tribolo\u0123isko \u012bpa\u0161\u012bbu d\u0113\u013c plastmasa ir lielisks materi\u0101ls s\u016bk\u0146iem, meh\u0101niskajiem bl\u012bv\u0113jumiem un gult\u0146iem, \u0137\u012bmisk\u0101s r\u016bpniec\u012bbas iek\u0101rt\u0101m un k\u0101 abraz\u012bvs materi\u0101ls.<\/p>\n
Sil\u012bcija karb\u012bds ir viens no pasaul\u0113 daudzpus\u012bg\u0101kajiem materi\u0101liem. Tam ir b\u016btiska noz\u012bme augstas veiktsp\u0113jas elektriskajos transportl\u012bdzek\u013cos (EV) un akumulatoru vad\u012bbas sist\u0113m\u0101s, kur t\u0101 augstsprieguma iesp\u0113jas nov\u0113r\u0161 akt\u012bv\u0101s dzes\u0113\u0161anas sist\u0113mas, kas palielina EV izmaksas, svaru un sare\u017e\u0123\u012bt\u012bbu.<\/p>\n
Karborunds, ciets keramikas un pusvad\u012bt\u0101ju materi\u0101ls, ko parasti d\u0113v\u0113 par karborundu, dabiski sastopams moisan\u012bta miner\u0101los, k\u0101 ar\u012b tiek ra\u017eots sint\u0113tiski. At\u0161\u0137ir\u012bb\u0101 no tradicion\u0101lajiem pusvad\u012bt\u0101jiem, piem\u0113ram, sil\u012bcija, karborundam ir pla\u0161a joslas sprauga, kas \u013cauj efekt\u012bv\u0101k nek\u0101 jebkad agr\u0101k p\u0101rvietot elektroener\u0123iju. Turkl\u0101t t\u0101 vad\u012btsp\u0113ju var main\u012bt, pievienojot piemais\u012bjumus t\u0101 krist\u0101liskaj\u0101 strukt\u016br\u0101.<\/p>\n
Sil\u012bcija karb\u012bds (SiC) ir energoefekt\u012bvs materi\u0101ls elektroener\u0123ijas p\u0101rveido\u0161anai mai\u0146str\u0101v\u0101, t\u0101p\u0113c tas ir piem\u0113rots elektroener\u0123ijas p\u0101rveido\u0161anai no elektrot\u012bkla. SiC papildinot ar sl\u0101pekli vai fosforu, veidojas n tipa pusvad\u012bt\u0101js, bet papildinot ar alum\u012bniju, boru vai galliju, rodas p tipa pusvad\u012bt\u0101ja \u012bpa\u0161\u012bbas.<\/p>\n
Alum\u012bnijam piem\u012bt lieliska siltumvad\u012btsp\u0113ja, iztur\u012bba augst\u0101 temperat\u016br\u0101, zema termisk\u0101 izple\u0161an\u0101s un iztur\u012bba pret \u0137\u012bmisk\u0101m reakcij\u0101m - \u012bpa\u0161\u012bbas, kas padara to par ide\u0101lu ugunsiztur\u012bgu materi\u0101lu. Turkl\u0101t t\u0101 ciet\u0101 un iztur\u012bg\u0101 virsma padara to piem\u0113rotu daudziem r\u016bpnieciskiem lietojumiem un ir lieliska ugunsiztur\u012bg\u0101 materi\u0101la izv\u0113le.<\/p>\n
Dabiskais SiC ir sastopams k\u0101 retais miner\u0101ls moizan\u012bts, sint\u0113tiski ra\u017eots mazos graudi\u0146os, kas savienoti kop\u0101 keramikas izstr\u0101d\u0101jumos vai ugunsiztur\u012bgajos materi\u0101los, vai nelielos daudzumos sastopams oglekli saturo\u0161os hondr\u012btu meteor\u012btos un kimberlitos.<\/p>","protected":false},"excerpt":{"rendered":"
Silicon carbide is an advanced material developed for use in high temperature environments. It could reduce reliance on active cooling […]<\/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-60","post","type-post","status-publish","format-standard","hentry","category-sic-knowledge"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/siliconcarbideceramic.net\/lv\/wp-json\/wp\/v2\/posts\/60","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=60"}],"version-history":[{"count":1,"href":"https:\/\/siliconcarbideceramic.net\/lv\/wp-json\/wp\/v2\/posts\/60\/revisions"}],"predecessor-version":[{"id":61,"href":"https:\/\/siliconcarbideceramic.net\/lv\/wp-json\/wp\/v2\/posts\/60\/revisions\/61"}],"wp:attachment":[{"href":"https:\/\/siliconcarbideceramic.net\/lv\/wp-json\/wp\/v2\/media?parent=60"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/lv\/wp-json\/wp\/v2\/categories?post=60"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/lv\/wp-json\/wp\/v2\/tags?post=60"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}