Silicio karbidas jau nuo XIX a. naudojamas kaip abrazyvas trapiems pavir\u0161iams \u0161lifuoti. Be to, \u0161i kieta med\u017eiaga taip pat naudojama ugniai atspari\u0173 med\u017eiag\u0173, dylan\u010di\u0173 dali\u0173 ir kaitinimo element\u0173 bei puslaidininkini\u0173 prietais\u0173 gamyboje.<\/p>\n
Aliuminio, boro, galio ir azoto dopingas, skirtas p ir n tipo puslaidininkiams gaminti, taip pat kaip \u0161viesos diod\u0173 ir ankstyv\u0173j\u0173 radijo grandini\u0173 substratas.<\/p>\n
Silicio karbidas (SiC) yra silicio ir anglies lydinys, kuris nat\u016braliai randamas kaip retas mineralas moisanitas; ta\u010diau nuo XIX a. pabaigos jis taip pat gaminamas pramoniniu b\u016bdu kaip kieta keramin\u0117 med\u017eiaga, naudojama tokiuose gaminiuose kaip abrazyvai, ugniai atspar\u016bs \u012fd\u0117klai, pjovimo \u012frankiai ir net puslaidininkiniai prietaisai. D\u0117l \u0161i\u0173 savybi\u0173 SiC yra puiki bazin\u0117 med\u017eiaga auk\u0161tos \u012ftampos galios prietaisams.<\/p>\n
SiC, palyginti su siliciu, gali atlaikyti labai dideles \u012ftampas, nes turi platesn\u012f juostos tarp\u0105.<\/p>\n
\"Washington Mills\" si\u016blo \u012fvairi\u0173 chemini\u0173 sud\u0117\u010di\u0173 ir dyd\u017ei\u0173 \"CARBOREX\" silicio karbid\u0105, naudojam\u0105 abrazyv\u0173, metalurgijos ir ugniai atspari\u0173 med\u017eiag\u0173 pramon\u0117je. D\u0117l savo patvarumo ir ekonomi\u0161kumo CARBOREX silicio karbidas yra populiari lapidin\u0117 abrazyvin\u0117 med\u017eiaga; be to, jis pla\u010diai naudojamas \u0161lifavimui, pjovimui vandens srove, sm\u0117liavimui, taip pat keliems apdirbimo procesams, pvz. Be to, jo kristalin\u0117 forma leid\u017eia jam sudaryti skirtingus daugiasluoksnius tipus pagal jo atom\u0173 jung\u010di\u0173 konfig\u016bracij\u0105; be to, jo sluoksniai leid\u017eia jam sudaryti unikalius daugiasluoksnius tipus arba formas, vadinamas politipais!<\/p>\n
Silicio karbidas d\u0117l savo kietumo, cheminio inerti\u0161kumo, ma\u017eo \u0161iluminio pl\u0117timosi grei\u010dio ir elektrinio laidumo savybi\u0173 yra ideali med\u017eiaga, tinkama naudoti esant auk\u0161tai temperat\u016brai ir atsparumui dilimui. Be to, silicio karbidas pasi\u017eymi i\u0161skirtiniu patvarumu naudojant auk\u0161tosios \u012ftampos \u012frenginiuose, tod\u0117l jis yra ideali med\u017eiaga galios jungikliams.<\/p>\n
Korundas yra viena i\u0161 kie\u010diausi\u0173 \u017einom\u0173 med\u017eiag\u0173, tod\u0117l j\u012f galima naudoti daugelyje \u0161iuolaikini\u0173 technologij\u0173, \u012fskaitant \u0161lifavimo, pjovimo vandens srove ir sm\u0117liavimo operacijas, o d\u0117l jo ilgaam\u017ei\u0161kumo vis labiau populiar\u0117ja ir lapidarinis naudojimas. Korundas kartu su boro karbidu ir deimantu yra viena i\u0161 trij\u0173 kie\u010diausi\u0173 \u017einom\u0173 med\u017eiag\u0173; be to, jis atlieka svarb\u0173 vaidmen\u012f \u012fvairiose srityse, \u012fskaitant abrazyvus, ugniai atspari\u0105 keramik\u0105 ir puslaidininkius.<\/p>\n
Silicio karbidas b\u016bna \u012fvairi\u0173 polimorf\u0173. Alfa silicio karbidas (a-SiC), kurio kristalin\u0117 strukt\u016bra yra \u0161e\u0161iakamp\u0117, pana\u0161i \u012f vurcito, yra viena i\u0161 da\u017eniau sutinkam\u0173 atmain\u0173; kitas variantas, beta silicio karbidas (b-SiC), pasi\u017eymi cinko blende kristaline strukt\u016bra. Nors da\u017eniau sutinkamas alfa SiC, abi jo formos yra labai naudingos; dideli pavieniai kristalai gali b\u016bti auginami net cheminio nusodinimo i\u0161 gar\u0173 b\u016bdu.<\/p>\n
Silicio karbidas yra i\u0161skirtin\u0117 dilimui atspari med\u017eiaga, pasi\u017eyminti ma\u017eesniu trinties koeficientu nei plienas ar kitas metalas ir atspari korozijai \u012fvairiose aplinkose. Ypa\u010d gerai formuojasi nitridais suri\u0161tas silicio karbidas, kuris yra atsparus korozijai, kai r\u016bg\u0161\u010di\u0173, \u0161arm\u0173 ir drusk\u0173 koncentracija siekia septynias eil\u0117s dyd\u017ei\u0173.<\/p>\n
D\u0117l ma\u017eo \u0161iluminio pl\u0117timosi ir kietumo savybi\u0173 cirkonis naudojamas ne tik \u0161lifavimo diskams ir \u0161vitriniam popieriui gaminti, bet ir ugniai atsparioms med\u017eiagoms, keramikai ir kitoms auk\u0161tos kokyb\u0117s med\u017eiagoms, pavyzd\u017eiui, astronomini\u0173 teleskop\u0173 veidrod\u017ei\u0173 med\u017eiagai.<\/p>\n
\u0160i med\u017eiaga idealiai tinka auk\u0161tos \u012ftampos grandini\u0173 elementams. Jos atsparumas \u012ftampai yra de\u0161imt kart\u0173 didesnis nei galio nitrido, tod\u0117l ji yra ne\u012fkainojamas komponentas elektromobili\u0173 keitikliuose ir saul\u0117s energijos sistemose. Be to, jo atsparumas oksidacijai leid\u017eia jam atlaikyti auk\u0161t\u0105 temperat\u016br\u0105, tod\u0117l jis yra puiki med\u017eiaga gaminant auk\u0161tos temperat\u016bros netiesioginio kaitinimo med\u017eiagas spalvot\u0173j\u0173 metal\u0173 lydymo pramon\u0117je, pavyzd\u017eiui, vario lydymo krosni\u0173 \u012fd\u0117klus arba aliuminio elektrolitini\u0173 rezervuar\u0173 \u012fd\u0117klus.<\/p>\n
Silicio karbidas naudojamas kaip ugniai atspari med\u017eiaga apsaugai ir izoliacijai auk\u0161toje temperat\u016broje u\u017etikrinti, nes pasi\u017eymi dideliu \u0161iluminiu stabilumu ir lydymosi temperat\u016bra. Keramikai, metalurgijos \u017ealiavoms ir kitoms pramon\u0117s \u0161akoms, kuriose reikalingas i\u0161skirtinis ilgaam\u017ei\u0161kumas, atsparumas kar\u0161\u010diui, cheminis inerti\u0161kumas ar cheminis suderinamumas, labai naudingas jo kaip ugniai atsparios med\u017eiagos naudojimas.<\/p>\n
Sukepinus j\u012f auk\u0161toje temperat\u016broje, j\u012f galima naudoti ugniai atspari\u0173 liejini\u0173, abrazyv\u0173 ir metalurgini\u0173 \u017ealiav\u0173 gamyboje, \u012fskaitant atsparum\u0105 terminiam sm\u016bgiui ir atsparum\u0105 sm\u016bgiams. Be to, jo ilgaam\u017ei\u0161kumas gerai apsaugo nuo abrazyvinio dilimo, korozijos ir erozijos pa\u017eeidim\u0173.<\/p>\n
Magnezito ugniai atsparios ugniai atsparios itin auk\u0161toms temperat\u016broms, tod\u0117l idealiai tinka naudoti \u012fvairiose auk\u0161tatemperat\u016br\u0117se srityse, pavyzd\u017eiui, lydymo krosni\u0173 i\u0161klotin\u0117se ir atramose, vario lydymo krosni\u0173 pad\u0117kluose, kietojo kuro distiliavimo krosnyse ir cinko milteli\u0173 krosnyse. D\u0117l savo unikali\u0173 savybi\u0173 jie taip pat tinka naudoti elektros energijos gamyboje, nes gali atlaikyti auk\u0161t\u0105 temperat\u016br\u0105, kuri b\u016bna branduoliniuose reaktoriuose. \"RHI Magnesita\" svetain\u0117je \"Matmatch\" si\u016blo plat\u0173 \u012fvairioms paskirtims tinkam\u0173 ugniai atspari\u0173 gamini\u0173 pasirinkim\u0105.<\/p>","protected":false},"excerpt":{"rendered":"
Silicon carbide has long been utilized as an abrasive for grinding brittle surfaces since the 19th century. Furthermore, this hard […]<\/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-48","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\/48","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=48"}],"version-history":[{"count":1,"href":"https:\/\/siliconcarbideceramic.net\/lt\/wp-json\/wp\/v2\/posts\/48\/revisions"}],"predecessor-version":[{"id":49,"href":"https:\/\/siliconcarbideceramic.net\/lt\/wp-json\/wp\/v2\/posts\/48\/revisions\/49"}],"wp:attachment":[{"href":"https:\/\/siliconcarbideceramic.net\/lt\/wp-json\/wp\/v2\/media?parent=48"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/lt\/wp-json\/wp\/v2\/categories?post=48"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/lt\/wp-json\/wp\/v2\/tags?post=48"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}