Karbid krem\u00edka, be\u017ene ozna\u010dovan\u00fd ako karbid krem\u00edka, sa v pr\u00edrode vyskytuje ako drahokam moissanit. Od roku 1893 sa masovo vyr\u00e1ba ako brusivo a v\u010faka svojim polovodi\u010dov\u00fdm vlastnostiam je cenn\u00fd v mnoh\u00fdch aplik\u00e1ci\u00e1ch v elektronike.<\/p>\n
Ostr\u00e9, hranat\u00e9 \u010dastice uhli\u010ditanu v\u00e1penat\u00e9ho z neho robia vynikaj\u00face br\u00fasivo na opracovanie kame\u0148ov a br\u00fasenie drahokamov, navy\u0161e je v\u010faka svojej cenovej dostupnosti ekonomick\u00fd a opakovane pou\u017eite\u013en\u00fd.<\/p>\n
SiC sa pou\u017e\u00edva v r\u00f4znych br\u00fasnych materi\u00e1loch, ako s\u00fa br\u00fasne kot\u00fa\u010de, br\u00fasne papiere a abraz\u00edva, a v\u010faka svojej tvrdosti a odolnosti je hlavnou vo\u013ebou v modernom lapid\u00e1riu. Okrem toho sa SiC m\u00f4\u017ee pou\u017e\u00edva\u0165 aj na pr\u00edpravu \u017eiaruvzdorn\u00fdch teh\u00e1l a v\u00fdmuroviek pec\u00ed na v\u00fdrobu ne\u017eelezn\u00fdch kovov; zatia\u013e \u010do jeho odolnos\u0165 vo\u010di kyselin\u00e1m a z\u00e1sad\u00e1m z neho rob\u00ed neocenite\u013en\u00fd materi\u00e1l v chemickom priemysle.<\/p>\n
Spekan\u00e1 keramika vyroben\u00e1 z tohto materi\u00e1lu sa m\u00f4\u017ee spekan\u00edm vytvori\u0165 tvrd\u00e9 a pru\u017en\u00e9 materi\u00e1ly, ktor\u00e9 sa pou\u017e\u00edvaj\u00fa v aplik\u00e1ci\u00e1ch vy\u017eaduj\u00facich vysok\u00fa odolnos\u0165, ako s\u00fa brzdy a spojky automobilov, keramick\u00e9 dosky zabudovan\u00e9 v nepriestreln\u00fdch vest\u00e1ch, le\u0161tiace \u010dinidlo na koncoch optick\u00fdch vl\u00e1kien pred ich sp\u00e1jan\u00edm, le\u0161tiace \u010dinidlo na koncoch vl\u00e1kien pred ich sp\u00e1jan\u00edm, ako aj komponenty v modern\u00fdch elektrick\u00fdch vozidl\u00e1ch, ktor\u00e9 umo\u017e\u0148uj\u00fa r\u00fdchle nab\u00edjanie jednosmern\u00fdm pr\u00fadom a zlep\u0161uj\u00fa tepeln\u00fa \u00fa\u010dinnos\u0165, ako aj v\u00fdkonov\u00e9 elektronick\u00e9 zariadenia v\u010faka odolnosti vo\u010di kor\u00f3zii a vysok\u00fdm teplot\u00e1m.<\/p>\n
\u017diaruvzdorn\u00e9 materi\u00e1ly sa pou\u017e\u00edvaj\u00fa v n\u00e1ro\u010dn\u00fdch priemyseln\u00fdch aplik\u00e1ci\u00e1ch, ktor\u00e9 si vy\u017eaduj\u00fa robustn\u00e9 ochrann\u00e9 v\u00fdmurovky, ako s\u00fa pece a su\u0161iarne, zariadenia na chemick\u00e9 spracovanie at\u010f. \u017diaruvzdorn\u00e9 v\u00fdrobky poskytuj\u00fa pevn\u00e9 mechanick\u00e9 \u0161trukt\u00fary, ochranu proti kor\u00f3zii, tepelnoizola\u010dn\u00e9 vlastnosti, ako aj pevn\u00e9 mechanick\u00e9 \u0161trukt\u00fary na prevenciu kor\u00f3zie.<\/p>\n
Karbid krem\u00edka je ide\u00e1lny na pou\u017eitie v \u017eiaruvzdorn\u00fdch aplik\u00e1ci\u00e1ch v\u010faka svojej odolnosti vo\u010di chemik\u00e1li\u00e1m a vysok\u00fdm teplot\u00e1m, pri\u010dom odol\u00e1va teplot\u00e1m a\u017e do 1 800 stup\u0148ov Fahrenheita bez toho, aby podliehal chemick\u00e9mu p\u00f4sobeniu kysel\u00edn alebo z\u00e1sad, \u010do z neho rob\u00ed ide\u00e1lny materi\u00e1l.<\/p>\n
ATHOR tvor\u00ed 15 doktorandov z r\u00f4znych oblast\u00ed, ktor\u00ed sa bud\u00fa vzdel\u00e1va\u0165 v oblasti \u0161pi\u010dkov\u00fdch in\u017einierskych technol\u00f3gi\u00ed a experiment\u00e1lnych techn\u00edk pre vod\u00edkov\u00e9 prostredie. Ich odborn\u00e9 znalosti v oblasti posudzovania \u017eivotn\u00e9ho cyklu, synchrotr\u00f3nov\u00fdch technol\u00f3gi\u00ed a digit\u00e1lnych dvoj\u010diat im umo\u017enia vytvori\u0165 robustnej\u0161ie a spo\u013eahlivej\u0161ie \u017eiaruvzdorn\u00e9 v\u00fdrobky pre priemyseln\u00fdch partnerov, \u010do povedie k v\u00fdrazn\u00fdm \u00faspor\u00e1m energie, pom\u00f4\u017ee splni\u0165 ciele uhl\u00edkovej neutrality a z\u00e1rove\u0148 zv\u00fd\u0161i dostupnos\u0165 priemyseln\u00fdch zariaden\u00ed a zlep\u0161\u00ed produktivitu.<\/p>\n
Polovodi\u010de z karbidu krem\u00edka sa \u010dasto pou\u017e\u00edvaj\u00fa na zosil\u0148ovanie, prep\u00ednanie a konverziu elektrick\u00fdch sign\u00e1lov. Ich kry\u0161talick\u00e1 \u0161trukt\u00fara umo\u017e\u0148uje dopovanie pr\u00edmesami, ako s\u00fa hlin\u00edk, g\u00e1lium a dus\u00edk, pre polovodi\u010dov\u00e9 zariadenia typu P alebo N, ktor\u00e9 umo\u017e\u0148uj\u00fa pracova\u0165 pri ove\u013ea vy\u0161\u0161\u00edch teplot\u00e1ch, nap\u00e4tiach a frekvenci\u00e1ch ako tradi\u010dn\u00e9 krem\u00edkov\u00e9 polovodi\u010de.<\/p>\n
Vy\u0161\u0161ie prierazn\u00e9 nap\u00e4tie polovodi\u010dov SiC umo\u017e\u0148uje, aby sp\u00edna\u010de v\u00fdkonovej elektroniky vyroben\u00e9 s ich pou\u017eit\u00edm boli men\u0161ie, \u010do ich rob\u00ed ide\u00e1lnymi pre aplik\u00e1cie zah\u0155\u0148aj\u00face vysokonap\u00e4\u0165ov\u00e9 prostredia, ako s\u00fa nab\u00edjacie syst\u00e9my elektrick\u00fdch vozidiel alebo vysokonap\u00e4\u0165ov\u00e9 prostredia, ktor\u00e9 musia zvl\u00e1dnu\u0165 prostredie s vy\u0161\u0161\u00edm nap\u00e4t\u00edm.<\/p>\n
Tranzistory SiC zvy\u010dajne odol\u00e1vaj\u00fa 10-kr\u00e1t v\u00e4\u010d\u0161\u00edm elektrick\u00fdm poliam ako ich krem\u00edkov\u00e9 polovodi\u010dov\u00e9 n\u00e1protivky, \u010do vedie k v\u00fdrazne ni\u017e\u0161iemu riziku nepravideln\u00e9ho vodiv\u00e9ho spr\u00e1vania a potenci\u00e1lne katastrofickej poruchy spolu s men\u0161ou stratou energie. V\u010faka v\u0161etk\u00fdm t\u00fdmto v\u00fdhod\u00e1m s\u00fa polovodi\u010de SiC ide\u00e1lne pre vysokonap\u00e4\u0165ov\u00e9 aplik\u00e1cie, ako s\u00fa nab\u00edja\u010dky elektrick\u00fdch vozidiel, sol\u00e1rne meni\u010de a senzorov\u00e9 syst\u00e9my.<\/p>\n
Karbid krem\u00edka (SiC) sa r\u00fdchlo stal jedn\u00fdm z hlavn\u00fdch materi\u00e1lov na pou\u017eitie v syst\u00e9moch meni\u010dov pre elektrick\u00e9 vozidl\u00e1 (EV). V\u010faka vynikaj\u00facim prev\u00e1dzkov\u00fdm teplot\u00e1m a\u017e do 300 stup\u0148ov Celzia v porovnan\u00ed s krem\u00edkom, ktor\u00fd m\u00e1 limit 175 stup\u0148ov Celzia, poskytuje SiC vy\u0161\u0161iu \u00fa\u010dinnos\u0165, spo\u013eahlivos\u0165 a dosah pri pou\u017eit\u00ed v aplik\u00e1ci\u00e1ch EV.<\/p>\n
SiC je neoxidov\u00e1 keramika, ktor\u00e1 sa v\u010faka svojej tvrdosti pou\u017e\u00edva v mechanicky a tepelne n\u00e1ro\u010dn\u00fdch aplik\u00e1ci\u00e1ch, v \u017eiaruvzdorn\u00fdch materi\u00e1loch pre svoju odolnos\u0165 vo\u010di vysok\u00fdm teplot\u00e1m a n\u00e1razom a v elektronike na pou\u017eitie v zariadeniach pracuj\u00facich pri vysok\u00fdch teplot\u00e1ch alebo nap\u00e4tiach, pr\u00edpadne pri oboch. SiC sa rad\u00ed na druh\u00e9 miesto po karbide b\u00f3ru a diamante ako jedna z najtvrd\u0161\u00edch zn\u00e1mych pr\u00edrodn\u00fdch l\u00e1tok.<\/p>\n
Karborundov\u00fa dr\u0165 mo\u017eno pou\u017ei\u0165 aj v karborundovej grafike - umeleckej forme, pri ktorej atrament zachyten\u00fd medzi \u0161trukt\u00farovan\u00fdmi hlin\u00edkov\u00fdmi plat\u0148ami vytv\u00e1ra na papieri ma\u013eovan\u00e9 stopy. Spolo\u010dnos\u0165 American Elements pon\u00faka v pr\u00edpade potreby mo\u017enosti triedy SiC, ako s\u00fa \u0161pecifik\u00e1cie Mil Spec, ACS Reagent Grade a USP EP\/BP pre tieto aplik\u00e1cie.<\/p>","protected":false},"excerpt":{"rendered":"
Silicon carbide, commonly referred to as silicon carbide, occurs naturally as the gemstone moissanite. Since 1893 it has been mass […]<\/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-80","post","type-post","status-publish","format-standard","hentry","category-sic-knowledge"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/siliconcarbideceramic.net\/sk\/wp-json\/wp\/v2\/posts\/80","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/siliconcarbideceramic.net\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/siliconcarbideceramic.net\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/sk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/sk\/wp-json\/wp\/v2\/comments?post=80"}],"version-history":[{"count":1,"href":"https:\/\/siliconcarbideceramic.net\/sk\/wp-json\/wp\/v2\/posts\/80\/revisions"}],"predecessor-version":[{"id":81,"href":"https:\/\/siliconcarbideceramic.net\/sk\/wp-json\/wp\/v2\/posts\/80\/revisions\/81"}],"wp:attachment":[{"href":"https:\/\/siliconcarbideceramic.net\/sk\/wp-json\/wp\/v2\/media?parent=80"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/sk\/wp-json\/wp\/v2\/categories?post=80"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/sk\/wp-json\/wp\/v2\/tags?post=80"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}