Karbid k\u0159em\u00edku, b\u011b\u017en\u011b ozna\u010dovan\u00fd jako karbid k\u0159em\u00edku, se v p\u0159\u00edrod\u011b vyskytuje jako drahokam moissanit. Od roku 1893 se masov\u011b vyr\u00e1b\u00ed jako brusivo a d\u00edky sv\u00fdm polovodi\u010dov\u00fdm vlastnostem je cenn\u00fd v mnoha elektronick\u00fdch aplikac\u00edch.<\/p>\n
Ostr\u00e9, hranat\u00e9 \u010d\u00e1stice uhli\u010ditanu v\u00e1penat\u00e9ho z n\u011bj d\u011blaj\u00ed vynikaj\u00edc\u00ed brusivo pro opracov\u00e1n\u00ed hornin a brou\u0161en\u00ed drah\u00fdch kamen\u016f, nav\u00edc je d\u00edky sv\u00e9 cenov\u00e9 dostupnosti ekonomick\u00fd a opakovan\u011b pou\u017eiteln\u00fd.<\/p>\n
SiC se pou\u017e\u00edv\u00e1 v r\u016fzn\u00fdch brusn\u00fdch materi\u00e1lech, jako jsou brusn\u00e9 kotou\u010de, brusn\u00e9 pap\u00edry a abraziva, a d\u00edky sv\u00e9 tvrdosti a odolnosti je hlavn\u00ed volbou v modern\u00edm lapid\u00e1riu. Krom\u011b toho lze SiC pou\u017e\u00edt tak\u00e9 k p\u0159\u00edprav\u011b \u017e\u00e1ruvzdorn\u00fdch cihel a vyzd\u00edvek pec\u00ed pro v\u00fdrobu ne\u017eelezn\u00fdch kov\u016f, zat\u00edmco jeho odolnost v\u016f\u010di kyselin\u00e1m a z\u00e1sad\u00e1m z n\u011bj \u010din\u00ed neoceniteln\u00fd materi\u00e1l v chemick\u00e9m pr\u016fmyslu.<\/p>\n
Slinut\u00e1 keramika vyroben\u00e1 z tohoto materi\u00e1lu m\u016f\u017ee b\u00fdt slinuta za \u00fa\u010delem vytvo\u0159en\u00ed tvrd\u00fdch a pru\u017en\u00fdch materi\u00e1l\u016f, kter\u00e9 se pou\u017e\u00edvaj\u00ed v aplikac\u00edch vy\u017eaduj\u00edc\u00edch vysokou odolnost, jako jsou brzdy a spojky automobil\u016f, keramick\u00e9 desti\u010dky zabudovan\u00e9 v nepr\u016fst\u0159eln\u00fdch vest\u00e1ch, le\u0161t\u00edc\u00ed prost\u0159edek na konce optick\u00fdch vl\u00e1ken p\u0159ed jejich spojen\u00edm, le\u0161t\u00edc\u00ed prost\u0159edek na konce vl\u00e1ken p\u0159ed jejich spojen\u00edm a tak\u00e9 komponenty, kter\u00e9 se nach\u00e1zej\u00ed v modern\u00edch elektrick\u00fdch vozidlech, aby umo\u017enily rychl\u00e9 nab\u00edjen\u00ed stejnosm\u011brn\u00fdm proudem a zlep\u0161ily tepelnou \u00fa\u010dinnost, jako\u017e i v\u00fdkonov\u00e1 elektronick\u00e1 za\u0159\u00edzen\u00ed d\u00edky odolnosti proti korozi a vysok\u00fdm teplot\u00e1m.<\/p>\n
\u017d\u00e1ruvzdorn\u00e9 materi\u00e1ly se pou\u017e\u00edvaj\u00ed v n\u00e1ro\u010dn\u00fdch pr\u016fmyslov\u00fdch aplikac\u00edch, kter\u00e9 vy\u017eaduj\u00ed robustn\u00ed ochrann\u00e9 vyzd\u00edvky, jako jsou pece a su\u0161\u00e1rny, za\u0159\u00edzen\u00ed pro chemick\u00e9 zpracov\u00e1n\u00ed atd. \u017d\u00e1ruvzdorn\u00e9 v\u00fdrobky poskytuj\u00ed pevn\u00e9 mechanick\u00e9 struktury, ochranu proti korozi, tepeln\u011b izola\u010dn\u00ed vlastnosti a tak\u00e9 pevn\u00e9 mechanick\u00e9 struktury pro prevenci koroze.<\/p>\n
Karbid k\u0159em\u00edku je ide\u00e1ln\u00ed pro pou\u017eit\u00ed v \u017e\u00e1ruvzdorn\u00fdch aplikac\u00edch d\u00edky sv\u00e9 odolnosti v\u016f\u010di chemik\u00e1li\u00edm i vysok\u00fdm teplot\u00e1m, odol\u00e1v\u00e1 teplot\u00e1m a\u017e 1 800 stup\u0148\u016f Fahrenheita, ani\u017e by podl\u00e9hal chemick\u00e9mu p\u016fsoben\u00ed kyselin nebo louh\u016f, co\u017e z n\u011bj \u010din\u00ed ide\u00e1ln\u00ed materi\u00e1l.<\/p>\n
ATHOR se skl\u00e1d\u00e1 z 15 doktorand\u016f z r\u016fzn\u00fdch obor\u016f, kte\u0159\u00ed se budou vzd\u011bl\u00e1vat v nejmodern\u011bj\u0161\u00edch in\u017een\u00fdrsk\u00fdch technologi\u00edch a experiment\u00e1ln\u00edch technik\u00e1ch pro vod\u00edkov\u00e9 prost\u0159ed\u00ed. Jejich odborn\u00e9 znalosti v oblasti posuzov\u00e1n\u00ed \u017eivotn\u00edho cyklu, synchrotronov\u00e9 technologie a digit\u00e1ln\u00edch dvoj\u010dat jim umo\u017en\u00ed vytv\u00e1\u0159et robustn\u011bj\u0161\u00ed a spolehliv\u011bj\u0161\u00ed \u017e\u00e1ruvzdorn\u00e9 v\u00fdrobky pro pr\u016fmyslov\u00e9 partnery, co\u017e povede k v\u00fdznamn\u00fdm \u00faspor\u00e1m energie, pom\u016f\u017ee splnit c\u00edle uhl\u00edkov\u00e9 neutrality a z\u00e1rove\u0148 zv\u00fd\u0161\u00ed dostupnost pr\u016fmyslov\u00fdch za\u0159\u00edzen\u00ed a zv\u00fd\u0161\u00ed produktivitu.<\/p>\n
Polovodi\u010de z karbidu k\u0159em\u00edku se \u010dasto pou\u017e\u00edvaj\u00ed k zesilov\u00e1n\u00ed, p\u0159ep\u00edn\u00e1n\u00ed a p\u0159evodu elektrick\u00fdch sign\u00e1l\u016f. Jejich krystalick\u00e1 struktura umo\u017e\u0148uje dopov\u00e1n\u00ed p\u0159\u00edm\u011bsemi, jako je hlin\u00edk, gallium a dus\u00edk, pro polovodi\u010dov\u00e9 sou\u010d\u00e1stky typu P nebo N, kter\u00e9 umo\u017e\u0148uj\u00ed pracovat p\u0159i mnohem vy\u0161\u0161\u00edch teplot\u00e1ch, nap\u011bt\u00edch a frekvenc\u00edch ne\u017e tradi\u010dn\u00ed k\u0159em\u00edkov\u00e9 polovodi\u010de.<\/p>\n
Vy\u0161\u0161\u00ed pr\u016frazn\u00e9 nap\u011bt\u00ed polovodi\u010d\u016f SiC umo\u017e\u0148uje, aby sp\u00edna\u010de v\u00fdkonov\u00e9 elektroniky vyroben\u00e9 s jejich pomoc\u00ed byly men\u0161\u00ed, co\u017e je \u010din\u00ed ide\u00e1ln\u00edmi pro aplikace zahrnuj\u00edc\u00ed vysokonap\u011b\u0165ov\u00e1 prost\u0159ed\u00ed, jako jsou nab\u00edjec\u00ed syst\u00e9my elektrick\u00fdch vozidel nebo vysokonap\u011b\u0165ov\u00e1 prost\u0159ed\u00ed, kter\u00e1 mus\u00ed zvl\u00e1dat prost\u0159ed\u00ed s vy\u0161\u0161\u00edm nap\u011bt\u00edm.<\/p>\n
Tranzistory SiC obvykle odol\u00e1vaj\u00ed 10kr\u00e1t v\u011bt\u0161\u00edmu elektrick\u00e9mu poli ne\u017e jejich k\u0159em\u00edkov\u00e9 polovodi\u010dov\u00e9 prot\u011bj\u0161ky, co\u017e vede k v\u00fdrazn\u00e9mu sn\u00ed\u017een\u00ed rizika nepravideln\u00e9ho vodiv\u00e9ho chov\u00e1n\u00ed a potenci\u00e1ln\u011b katastrofick\u00e9ho selh\u00e1n\u00ed spolu s men\u0161\u00edmi ztr\u00e1tami energie. D\u00edky v\u0161em t\u011bmto v\u00fdhod\u00e1m jsou polovodi\u010de SiC ide\u00e1ln\u00ed pro vysokonap\u011b\u0165ov\u00e9 aplikace, jako jsou nab\u00edje\u010dky elektromobil\u016f, sol\u00e1rn\u00ed st\u0159\u00edda\u010de a senzorov\u00e9 syst\u00e9my.<\/p>\n
Karbid k\u0159em\u00edku (SiC) se rychle stal jedn\u00edm z hlavn\u00edch materi\u00e1l\u016f pro pou\u017eit\u00ed v syst\u00e9mech m\u011bni\u010d\u016f pro elektrick\u00e1 vozidla. D\u00edky vynikaj\u00edc\u00edm provozn\u00edm teplot\u00e1m a\u017e 300 stup\u0148\u016f Celsia ve srovn\u00e1n\u00ed s k\u0159em\u00edkem, kter\u00fd je omezen na 175 stup\u0148\u016f Celsia, poskytuje SiC p\u0159i pou\u017eit\u00ed v elektrick\u00fdch vozidlech vy\u0161\u0161\u00ed \u00fa\u010dinnost, spolehlivost a dosah.<\/p>\n
SiC je neoxidov\u00e1 keramika, kter\u00e1 se d\u00edky sv\u00e9 tvrdosti pou\u017e\u00edv\u00e1 v mechanicky a tepeln\u011b n\u00e1ro\u010dn\u00fdch aplikac\u00edch, v \u017e\u00e1ruvzdorn\u00fdch materi\u00e1lech pro svou odolnost v\u016f\u010di vysok\u00fdm teplot\u00e1m a n\u00e1raz\u016fm a v elektronice pro pou\u017eit\u00ed v za\u0159\u00edzen\u00edch pracuj\u00edc\u00edch p\u0159i vysok\u00fdch teplot\u00e1ch nebo nap\u011bt\u00edch, p\u0159\u00edpadn\u011b v obou t\u011bchto oblastech. SiC se \u0159ad\u00ed na druh\u00e9 m\u00edsto po karbidu boru a diamantu jako jedna z nejtvrd\u0161\u00edch zn\u00e1m\u00fdch p\u0159\u00edrodn\u00edch l\u00e1tek.<\/p>\n
Karborundovou dr\u0165 lze pou\u017e\u00edt tak\u00e9 v karborundov\u00e9 grafice - um\u011bleck\u00e9 form\u011b, p\u0159i n\u00ed\u017e inkoust zachycen\u00fd mezi strukturovan\u00fdmi hlin\u00edkov\u00fdmi deskami vytv\u00e1\u0159\u00ed malovan\u00e9 stopy na pap\u00ed\u0159e. Spole\u010dnost American Elements nab\u00edz\u00ed v p\u0159\u00edpad\u011b pot\u0159eby varianty t\u0159\u00eddy SiC, jako jsou specifikace Mil Spec, ACS Reagent Grade a USP EP\/BP pro tyto aplikace.<\/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\/cs\/wp-json\/wp\/v2\/posts\/80","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/siliconcarbideceramic.net\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/siliconcarbideceramic.net\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/cs\/wp-json\/wp\/v2\/comments?post=80"}],"version-history":[{"count":1,"href":"https:\/\/siliconcarbideceramic.net\/cs\/wp-json\/wp\/v2\/posts\/80\/revisions"}],"predecessor-version":[{"id":81,"href":"https:\/\/siliconcarbideceramic.net\/cs\/wp-json\/wp\/v2\/posts\/80\/revisions\/81"}],"wp:attachment":[{"href":"https:\/\/siliconcarbideceramic.net\/cs\/wp-json\/wp\/v2\/media?parent=80"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/cs\/wp-json\/wp\/v2\/categories?post=80"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/cs\/wp-json\/wp\/v2\/tags?post=80"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}