![\"Reak\u010dn\u011b](\"http:\/\/siliconcarbideceramic.net\/wp-content\/uploads\/2024\/10\/Reaction-Bonded-SiC.jpg\")
<\/p>","protected":false},"excerpt":{"rendered":"Reaction Bonded SiC (RBSC) je hust\u00fd keramick\u00fd materi\u00e1l slo\u017een\u00fd z karbidu k\u0159em\u00edku a uhl\u00edkov\u00fdch \u010d\u00e1stic. Vypalov\u00e1n\u00edm doch\u00e1z\u00ed k minim\u00e1ln\u00edm zm\u011bn\u00e1m jeho rozm\u011br\u016f, co\u017e umo\u017e\u0148uje v\u00fdrobu t\u00e9m\u011b\u0159 \u010dist\u00e9ho tvaru bez dodate\u010dn\u00fdch n\u00e1klad\u016f na opracov\u00e1n\u00ed po vyp\u00e1len\u00ed.<\/p>\n
Bylo zji\u0161t\u011bno, \u017ee struktura p\u00f3r\u016f RBSC z\u00e1vis\u00ed na n\u011bkolika kl\u00ed\u010dov\u00fdch prom\u011bnn\u00fdch souvisej\u00edc\u00edch se stupn\u011bm grafitizace, velikost\u00ed a morfologi\u00ed zdroj\u016f uhl\u00edku; jejich vliv na reaktivitu uhl\u00edku v\u016f\u010di k\u0159em\u00edkov\u00e9 tavenin\u011b byl obrovsk\u00fd.<\/p>\n
Karbid k\u0159em\u00edku je extr\u00e9mn\u011b pevn\u00fd a tuh\u00fd materi\u00e1l, kter\u00fd odol\u00e1v\u00e1 vysok\u00e9mu nam\u00e1h\u00e1n\u00ed, ani\u017e by do\u0161lo k poru\u0161en\u00ed jeho struktur\u00e1ln\u00ed integrity. D\u00edky sv\u00e9 n\u00edzk\u00e9 hustot\u011b a vysok\u00e9 m\u011brn\u00e9 tuhosti je karbid k\u0159em\u00edku \u017e\u00e1dan\u00fdm materi\u00e1lem v situac\u00edch, jako jsou vesm\u00edrn\u00e9 teleskopy, kde je t\u0159eba br\u00e1t v \u00favahu omezen\u00ed hmotnosti.<\/p>\n
D\u00edky chemick\u00e9 inertnosti je RB SiC ide\u00e1ln\u00ed pro aplikace, kde doch\u00e1z\u00ed ke kontaktu s agresivn\u00edmi chemik\u00e1liemi. Krom\u011b toho je d\u00edky sv\u00e9 odolnosti v\u016f\u010di teplotn\u00edm \u0161ok\u016fm schopen odol\u00e1vat n\u00e1hl\u00fdm zm\u011bn\u00e1m podm\u00ednek prost\u0159ed\u00ed.<\/p>\n
Pro zv\u00fd\u0161en\u00ed pevnosti v ohybu a modulu pru\u017enosti RB SiC jsme zkoumali, jak r\u016fzn\u00e9 obsahy uhl\u00edku ovliv\u0148uj\u00ed jeho mikrostrukturu. Pou\u017eit\u00edm kompozitn\u00edho roztoku prekurzor\u016f PF a FA jsme byli schopni \u0159\u00eddit obsah i krystalinitu uhl\u00edku v na\u0161\u00ed por\u00e9zn\u00ed p\u0159edloze, \u010d\u00edm\u017e jsme z\u00edskali RB SiC s vy\u0161\u0161\u00ed pevnost\u00ed v ohybu a moduly pru\u017enosti.<\/p>\n
SiC je vysoce tepeln\u011b vodiv\u00fd, s p\u0159ibli\u017enou vodivost\u00ed 300 W\/mK, co\u017e z RBSC \u010din\u00ed vynikaj\u00edc\u00ed volbu pro aplikace vy\u017eaduj\u00edc\u00ed vysok\u00fd teplotn\u00ed v\u00fdkon.<\/p>\n
RBSC se vyzna\u010duje vynikaj\u00edc\u00ed odolnost\u00ed proti abrazivn\u00edmu a erozivn\u00edmu opot\u0159eben\u00ed, tak\u017ee je ide\u00e1ln\u00ed pro n\u00e1ro\u010dn\u00e9 pr\u016fmyslov\u00e9 prost\u0159ed\u00ed. Jeho n\u00edzk\u00fd koeficient tepeln\u00e9 rozta\u017enosti nav\u00edc umo\u017e\u0148uje rychl\u00e9 kol\u00eds\u00e1n\u00ed teplot bez naru\u0161en\u00ed struktur\u00e1ln\u00ed integrity.<\/p>\n
Rozlo\u017een\u00ed velikosti \u010d\u00e1stic surovin pou\u017e\u00edvan\u00fdch p\u0159i p\u0159\u00edprav\u011b p\u0159edlisk\u016f RBSC m\u00e1 obrovsk\u00fd vliv na jejich mikrostrukturu a fyzik\u00e1ln\u00ed vlastnosti, jako je pevnost v ohybu a modul pru\u017enosti. Zv\u00fd\u0161en\u00ed obsahu saz\u00ed m\u00e1 za n\u00e1sledek zlep\u0161en\u00ed mikrostruktury s v\u011bt\u0161\u00ed pevnost\u00ed v ohybu a hodnotami modulu pru\u017enosti u hotov\u00fdch v\u00fdrobk\u016f s lep\u0161\u00ed mikrostrukturou.<\/p>\n
Reaction Bonded SiC nab\u00edz\u00ed aplikac\u00edm, kter\u00e9 vy\u017eaduj\u00ed odolnost v\u016f\u010di vysok\u00fdm teplot\u00e1m, vynikaj\u00edc\u00ed schopnost tepeln\u00e9 rozta\u017enosti, kter\u00e9 se dosahuje pou\u017eit\u00edm saz\u00ed a mikrosf\u00e9rick\u00e9ho grafitu p\u0159i v\u00fdrob\u011b. Slo\u017een\u00ed, struktura a vlastnosti Reaction Bonded SiC se li\u0161\u00ed v z\u00e1vislosti na obsahu uhl\u00edku, jeho pod\u00edlu, morfologii a form\u011b pou\u017eit\u00fdch zdroj\u016f uhl\u00edku.<\/p>\n
Reak\u010dn\u00ed lepen\u00ed p\u0159edstavuje \u00fa\u010dinnou metodu v\u00fdroby keramick\u00fdch materi\u00e1l\u016f, jako jsou \u017e\u00e1ruvzdorn\u00e9 materi\u00e1ly, por\u00e9zn\u00ed filtra\u010dn\u00ed t\u011blesa a opot\u0159ebiteln\u00e9 sou\u010d\u00e1sti, nap\u0159\u00edklad mechanick\u00e1 t\u011bsn\u011bn\u00ed a lo\u017eiska.<\/p>\n
RB SiC je mimo\u0159\u00e1dn\u011b robustn\u00ed a spolehliv\u00fd materi\u00e1l, kter\u00fd vynik\u00e1 v r\u016fzn\u00fdch prost\u0159ed\u00edch. D\u00edky sv\u00e9 n\u00edzk\u00e9 tepeln\u00e9 rozta\u017enosti je tento materi\u00e1l ide\u00e1ln\u00ed pro aplikace vy\u017eaduj\u00edc\u00ed p\u0159esnou rozm\u011brovou stabilitu, jako jsou \u010derpadla, lo\u017eiska a tlumivky pro regulaci pr\u016ftoku. Krom\u011b toho lze tento v\u0161estrann\u00fd materi\u00e1l pou\u017e\u00edt tak\u00e9 k v\u00fdrob\u011b sou\u010d\u00e1st\u00ed pro za\u0159\u00edzen\u00ed na v\u00fdrobu polovodi\u010d\u016f, jako jsou sou\u010d\u00e1sti pro manipulaci s desti\u010dkami.<\/p>\n
Reak\u010dn\u011b v\u00e1zan\u00fd karbid k\u0159em\u00edku (RBSC) je p\u0159izp\u016fsobiv\u00fd keramick\u00fd materi\u00e1l, kter\u00fd lze tvarovat do slo\u017eit\u00fdch forem pro profesion\u00e1ln\u00ed a pr\u016fmyslov\u00e9 pou\u017eit\u00ed. RBSC se vyzna\u010duje vynikaj\u00edc\u00ed odolnost\u00ed proti opot\u0159eben\u00ed s n\u00edzk\u00fdm koeficientem rozta\u017enosti, odolnost\u00ed proti korozi a tak\u00e9 vynikaj\u00edc\u00edmi elektrick\u00fdmi vlastnostmi.<\/p>\n
RBSC se vyr\u00e1b\u00ed infiltrac\u00ed por\u00e9zn\u00edch forem karbidu k\u0159em\u00edku tekut\u00fdm k\u0159em\u00edkem. Vznik\u00e1 tak keramika s nepropustnou strukturou, odoln\u00e1 v\u016f\u010di m\u00edrn\u011b \u017e\u00edrav\u00fdm a kysel\u00fdm kapalin\u00e1m i lehk\u00fdm uhlovod\u00edk\u016fm. Krom\u011b toho jej\u00ed nepropustn\u00e9 slo\u017een\u00ed a povrchov\u00e1 struktura sni\u017euj\u00ed t\u0159en\u00ed, co\u017e prodlu\u017euje \u017eivotnost sou\u010d\u00e1stek, a je lehk\u00e1 a tuh\u00e1, tak\u017ee je vhodn\u00e1 pro vesm\u00edrn\u00e9 teleskopy, kde existuj\u00ed limity hmotnosti u\u017eite\u010dn\u00e9ho zat\u00ed\u017een\u00ed; jej\u00ed vysoce rozm\u011brov\u011b stabiln\u00ed povrch d\u00e1le zvy\u0161uje hodnotu.<\/p>\n
Reak\u010dn\u011b v\u00e1zan\u00fd SiC je vysoce odoln\u00fd v\u016f\u010di chemick\u00e9 korozi, tak\u017ee je ide\u00e1ln\u00ed pro prost\u0159ed\u00ed s korozivn\u00edmi materi\u00e1ly. Krom\u011b toho je d\u00edky sv\u00e9 n\u00edzk\u00e9 tepeln\u00e9 rozta\u017enosti a pevnosti schopen odol\u00e1vat extr\u00e9mn\u00edm teplot\u00e1m.<\/p>\n
Reak\u010dn\u011b v\u00e1zan\u00e1 v\u00fdroba zahrnuje vst\u0159ikov\u00e1n\u00ed roztaven\u00e9ho k\u0159em\u00edku do por\u00e9zn\u00edho uhl\u00edkov\u00e9ho materi\u00e1lu zabalen\u00e9ho do tvaru po\u017eadovan\u00e9ho d\u00edlu, kde pak reaguje s molekulami uhl\u00edku za vzniku karbidu k\u0159em\u00edku.<\/p>\n
V\u00fdzkumem bylo zji\u0161t\u011bno, \u017ee pevnost v ohybu, modul pru\u017enosti a p\u00f3rovitost RBSC keramiky z\u00e1vis\u00ed na obsahu a pod\u00edlu v\u00fdchoz\u00edho materi\u00e1lu uhl\u00edku. Dosa\u017een\u00ed p\u0159im\u011b\u0159en\u00e9 gradace jak z hlediska zdroje uhl\u00edku, tak morfologie v\u00fdrazn\u011b zvy\u0161uje v\u00fdkonnost; to zaji\u0161\u0165uje rovnom\u011brn\u00e9 rozlo\u017een\u00ed voln\u00fdch sikov\u00fdch \u010d\u00e1stic v t\u011bsn\u011b zabalen\u00e9 mikrostruktu\u0159e a vynikaj\u00edc\u00ed vlastnosti kone\u010dn\u00fdch v\u00fdrobk\u016f.<\/p>\n
<\/p>","protected":false},"excerpt":{"rendered":"
Reaction Bonded SiC – Optimal Performance for Extreme Conditions Reaction Bonded SiC (RBSC) is a dense ceramic material composed of […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","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":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","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":[5],"tags":[],"class_list":["post-361","post","type-post","status-publish","format-standard","hentry","category-product-related"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/siliconcarbideceramic.net\/cs\/wp-json\/wp\/v2\/posts\/361","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=361"}],"version-history":[{"count":3,"href":"https:\/\/siliconcarbideceramic.net\/cs\/wp-json\/wp\/v2\/posts\/361\/revisions"}],"predecessor-version":[{"id":383,"href":"https:\/\/siliconcarbideceramic.net\/cs\/wp-json\/wp\/v2\/posts\/361\/revisions\/383"}],"wp:attachment":[{"href":"https:\/\/siliconcarbideceramic.net\/cs\/wp-json\/wp\/v2\/media?parent=361"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/cs\/wp-json\/wp\/v2\/categories?post=361"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/cs\/wp-json\/wp\/v2\/tags?post=361"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}