Karbid k\u0159em\u00edku v\u00e1zan\u00fd nitridem je v\u00fdjime\u010dn\u00fd konstruk\u010dn\u00ed materi\u00e1l s vynikaj\u00edc\u00ed inherentn\u00ed pevnost\u00ed, teplotn\u00ed hou\u017eevnatost\u00ed a odolnost\u00ed proti oxidaci. Ve srovn\u00e1n\u00ed se v\u0161emi zn\u00e1m\u00fdmi \u017e\u00e1ruvzdorn\u00fdmi t\u011blesy se m\u016f\u017ee pochlubit vynikaj\u00edc\u00ed pevnost\u00ed za tepla a z\u00e1rove\u0148 vykazuje ni\u017e\u0161\u00ed m\u00edru opot\u0159eben\u00ed ne\u017e speci\u00e1ln\u00ed oceli ve v\u0161ech testovan\u00fdch p\u016fdn\u00edch podm\u00ednk\u00e1ch.<\/p>\n
NBSC se vytv\u00e1\u0159ej\u00ed d\u016fkladn\u00fdm sm\u00edch\u00e1n\u00edm such\u00e9ho k\u0159em\u00edkov\u00e9ho pr\u00e1\u0161ku s neznateln\u011b jemnou strukturou s pr\u00e1\u0161kem SiC a n\u00e1sledn\u00fdm tvarov\u00e1n\u00edm do tvarovateln\u00e9 hmoty. Pot\u00e9 se vyp\u00e1l\u00ed v atmosf\u00e9\u0159e, kter\u00e1 nep\u0159ipou\u0161t\u00ed kysl\u00edk, aby se v\u011bt\u0161ina k\u0159em\u00edku p\u0159em\u011bnila na nitrid k\u0159em\u00edku.<\/p>\n
Karbid k\u0159em\u00edku s nitridovou vazbou je hou\u017eevnat\u00fd materi\u00e1l, kter\u00fd je navr\u017een tak, aby odol\u00e1val vysok\u00fdm teplot\u00e1m a z\u00e1rove\u0148 m\u011bl mechanickou pevnost a dobrou odolnost proti ot\u011bru, co\u017e z n\u011bj \u010din\u00ed ekonomick\u00e9 \u0159e\u0161en\u00ed pro aplikace vy\u017eaduj\u00edc\u00ed vysokou odolnost proti opot\u0159eben\u00ed.<\/p>\n
Karbid k\u0159em\u00edku s nitridovou vazbou p\u0159ekon\u00e1val ve v\u0161ech testovan\u00fdch p\u016fdn\u00edch podm\u00ednk\u00e1ch, zejm\u00e9na v lehk\u00fdch p\u016fdn\u00edch podm\u00ednk\u00e1ch s voln\u00fdmi zrny p\u00edsku, ocel XAR 600, polstrovan\u00fd svar F-61 a ocel 38GSA.<\/p>\n
Cihly NBSC jsou ide\u00e1ln\u00ed pro pou\u017eit\u00ed v r\u016fzn\u00fdch \u017e\u00e1ruvzdorn\u00fdch aplikac\u00edch, v\u010detn\u011b topeni\u0161tn\u00edch desek, rekupera\u010dn\u00edch trubek, tla\u010dn\u00fdch desek, nosn\u00edk\u016f, vy\u00fastek a pod\u00e9ln\u00edk\u016f v pecn\u00edm n\u00e1bytku. Jejich univerz\u00e1ln\u00ed charakter umo\u017e\u0148uje odl\u00e9v\u00e1n\u00ed do velk\u00fdch, slo\u017eit\u00fdch tvar\u016f, zat\u00edmco jejich odolnost v\u016f\u010di chemick\u00fdm a tepeln\u00fdm \u0161ok\u016fm \u010din\u00ed tento materi\u00e1l vhodn\u00fdm pro pr\u016fmyslov\u00e9 prost\u0159ed\u00ed.<\/p>\n
Karbid k\u0159em\u00edku s nitridovou vazbou je \u0161iroce uzn\u00e1v\u00e1n pro svou vynikaj\u00edc\u00ed odolnost v\u016f\u010di tepeln\u00fdm \u0161ok\u016fm, co\u017e jej \u010din\u00ed u\u017eite\u010dn\u00fdm v n\u00e1ro\u010dn\u00fdch prost\u0159ed\u00edch. Krom\u011b toho je d\u00edky sv\u00e9 schopnosti odol\u00e1vat ot\u011bru v r\u016fzn\u00fdch p\u016fdn\u00edch podm\u00ednk\u00e1ch a vysok\u00e9 odolnosti proti abrazivn\u00edmu opot\u0159eben\u00ed lep\u0161\u00ed ne\u017e oceli a materi\u00e1ly z b\u00f3rov\u00e9 oceli pou\u017e\u00edvan\u00e9 jako pracovn\u00ed d\u00edly pro zpracov\u00e1n\u00ed p\u016fdn\u00edch hmot; materi\u00e1ly speci\u00e1ln\u00edho tvaru v\u0161ak nep\u0159en\u00e1\u0161ej\u00ed tlakov\u00e9 zat\u00ed\u017een\u00ed tak \u00fa\u010dinn\u011b.<\/p>\n
Karbid k\u0159em\u00edku v\u00e1zan\u00fd nitridem (NBSC) se vyr\u00e1b\u00ed v elektrick\u00e9 peci p\u0159i \u0159\u00edzen\u00fdch teplot\u00e1ch a tlac\u00edch a dod\u00e1v\u00e1 se v r\u016fzn\u00fdch standardn\u00edch a zak\u00e1zkov\u00fdch velikostech a tvarech a r\u016fzn\u00fdch tlou\u0161\u0165k\u00e1ch. D\u00edky sv\u00e9 odolnosti proti alkalick\u00e9 erozi, odolnosti proti oxidaci vodn\u00ed p\u00e1rou, odolnosti proti tepeln\u00fdm \u0161ok\u016fm a antikorozn\u00edm vlastnostem je vynikaj\u00edc\u00ed volbou materi\u00e1lu pro pou\u017eit\u00ed v kom\u00ednech, zvonech, lopat\u00e1ch a tuarech vysok\u00fdch pec\u00ed na v\u00fdrobu \u017eeleza.<\/p>\n
Karbid k\u0159em\u00edku s nitridovou vazbou je pokro\u010dil\u00fd \u017e\u00e1ruvzdorn\u00fd a konstruk\u010dn\u00ed materi\u00e1l s mnoha v\u00fdhodn\u00fdmi vlastnostmi, v\u010detn\u011b vysok\u00e9 pevnosti p\u0159i zv\u00fd\u0161en\u00fdch teplot\u00e1ch, v\u00fdjime\u010dn\u00e9 odolnosti proti erozi, odolnosti proti tepeln\u00fdm \u0161ok\u016fm, odolnosti proti oxidaci a snadn\u00e9ho slinov\u00e1n\u00ed, kter\u00e9 umo\u017e\u0148uje snadn\u00e9 tvarov\u00e1n\u00ed slo\u017eit\u00fdch tvar\u016f do komplikovan\u00fdch konstrukc\u00ed.<\/p>\n
Tento materi\u00e1l m\u00e1 vysokou nosnost a v\u00fdjime\u010dnou odolnost proti korozi kyselinami, roztaven\u00fdmi solemi a halogeny. Nav\u00edc je d\u00edky sv\u00e9 odolnosti proti k\u0159ehk\u00e9mu prask\u00e1n\u00ed vhodnou volbou.<\/p>\n
Hlin\u00edkov\u00fd kompozitn\u00ed materi\u00e1l (ACM) nab\u00edz\u00ed dobrou odolnost proti od\u011bru v podm\u00ednk\u00e1ch sypk\u00e9 p\u016fdy, ale nemus\u00ed b\u00fdt v porovn\u00e1n\u00ed s ocel\u00ed a polstrovan\u00fdm svarem p\u0159\u00edzniv\u011bj\u0161\u00ed proti n\u00e1razov\u00e9mu opot\u0159eben\u00ed. Odolnost proti od\u011bru se zvy\u0161uje s velikost\u00ed zrn a typem povlaku. ACM lze nal\u00e9zt vyu\u017eit\u00ed pro aplikace v n\u00e1bytku pec\u00ed p\u0159i vysokoteplotn\u00edch metalurgick\u00fdch procesech, zat\u00edmco jeho vynikaj\u00edc\u00ed odolnost proti oxidaci z n\u011bj \u010din\u00ed neoceniteln\u00fd materi\u00e1l v situac\u00edch, kdy se pracuje p\u0159i vysok\u00fdch teplot\u00e1ch.<\/p>\n
Karbid k\u0159em\u00edku v\u00e1zan\u00fd nitridem se vyzna\u010duje extr\u00e9mn\u011b vysokou pevnost\u00ed, co\u017e z n\u011bj \u010din\u00ed vynikaj\u00edc\u00ed materi\u00e1l pro p\u0159esnou technickou keramiku. Krom\u011b toho se tento materi\u00e1l vyzna\u010duje n\u00edzkou tepelnou rozta\u017enost\u00ed, tak\u017ee je vhodn\u00fd pro zrcadla astronomick\u00fdch dalekohled\u016f.<\/p>\n
Odolnost keramiky v\u016f\u010di k\u0159ehk\u00e9mu prask\u00e1n\u00ed souvis\u00ed s jej\u00ed zrnitost\u00ed a keramika vykazuje m\u00e9n\u011b intenzivn\u00ed opot\u0159eben\u00ed ne\u017e ocel ve v\u0161ech studovan\u00fdch podm\u00ednk\u00e1ch, p\u0159i\u010dem\u017e t\u011b\u017ek\u00e1 p\u016fda vykazuje 9x m\u00e9n\u011b intenzivn\u00ed opot\u0159eben\u00ed ve srovn\u00e1n\u00ed s 3x intenzivn\u011bj\u0161\u00edm opot\u0159eben\u00edm ve st\u0159edn\u011b t\u011b\u017ek\u00e9 p\u016fd\u011b.<\/p>\n
\u017d\u00e1ruvzdorn\u00e9 materi\u00e1ly z karbidu k\u0159em\u00edku v\u00e1zan\u00e9ho dus\u00edkem (NBC) jsou lit\u00e9 \u017e\u00e1ruvzdorn\u00e9 materi\u00e1ly, kter\u00e9 se obvykle pou\u017e\u00edvaj\u00ed k vytv\u00e1\u0159en\u00ed slo\u017eit\u00fdch tvar\u016f pomoc\u00ed r\u016fzn\u00fdch technik, v\u010detn\u011b jednoos\u00e9ho lisov\u00e1n\u00ed a kluzn\u00e9ho lit\u00ed. Ob\u011b techniky maj\u00ed sv\u00e9 vlastn\u00ed v\u00fdhody: jednoos\u00e9 lisov\u00e1n\u00ed umo\u017e\u0148uje vysokou efektivitu v\u00fdroby, ale je omezeno na jednoduch\u00e9 geometrick\u00e9 tvary; kluzn\u00e9 lit\u00ed umo\u017e\u0148uje vytv\u00e1\u0159et zelen\u00e9 tvary, ale vy\u017eaduje \u010das na su\u0161en\u00ed p\u0159ed odformov\u00e1n\u00edm.<\/p>\n
Karbid k\u0159em\u00edku v\u00e1zan\u00fd nitridem (NBSiC) je v\u00fdjime\u010dn\u00fd kompozitn\u00ed \u017e\u00e1ruvzdorn\u00fd materi\u00e1l, kter\u00fd nab\u00edz\u00ed v\u00fdjime\u010dnou odolnost proti tepeln\u00fdm \u0161ok\u016fm, oxidaci a vysokou pevnost. Krom\u011b toho NBSiC odol\u00e1v\u00e1 sm\u00e1\u010den\u00ed ne\u017eelezn\u00fdmi kovy, kter\u00e9 se do n\u011bj roztav\u00ed b\u011bhem tavic\u00edch proces\u016f; na rozd\u00edl od p\u0159\u00edrodn\u00edho moissanitu, kter\u00fd se vyskytuje jen vz\u00e1cn\u011b v meteoritech, lo\u017eisc\u00edch korundu nebo kimberlitu; v\u011bt\u0161ina NBSiC prod\u00e1van\u00e9ho po cel\u00e9m sv\u011bt\u011b se dnes vyr\u00e1b\u00ed synteticky.<\/p>\n
NB SiC lze vyr\u00e1b\u011bt nitridac\u00ed, p\u0159i n\u00ed\u017e se sm\u011bs karbidu k\u0159em\u00edku a slou\u010denin obsahuj\u00edc\u00edch dus\u00edk zah\u0159\u00edv\u00e1 p\u0159i vysok\u00fdch teplot\u00e1ch za vzniku hust\u00fdch a konsolidovan\u00fdch materi\u00e1l\u016f. Proces lze prov\u00e1d\u011bt dv\u011bma r\u016fzn\u00fdmi metodami tv\u00e1\u0159en\u00ed: jednoos\u00fdm lisov\u00e1n\u00edm a kluzn\u00fdm lit\u00edm. Zat\u00edmco jednoos\u00fdm lisov\u00e1n\u00edm vznikaj\u00ed jednoduch\u00e9 geometrick\u00e9 kompakty, kluzn\u00fdm lit\u00edm se vytv\u00e1\u0159ej\u00ed zelen\u00e9 keramick\u00e9 d\u00edly slo\u017eit\u00fdch tvar\u016f s jedine\u010dnou strukturou; jejich hustota z\u00e1vis\u00ed na obsahu pevn\u00fdch l\u00e1tek a pojiva v p\u0159\u00edslu\u0161n\u00fdch suspenz\u00edch.<\/p>","protected":false},"excerpt":{"rendered":"
Nitride-bonded silicon carbide is an exceptional engineering material with superior inherent strength, temperature toughness and oxidation resistance properties. It boasts […]<\/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":"","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":[5],"tags":[],"class_list":["post-34","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\/34","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=34"}],"version-history":[{"count":1,"href":"https:\/\/siliconcarbideceramic.net\/cs\/wp-json\/wp\/v2\/posts\/34\/revisions"}],"predecessor-version":[{"id":35,"href":"https:\/\/siliconcarbideceramic.net\/cs\/wp-json\/wp\/v2\/posts\/34\/revisions\/35"}],"wp:attachment":[{"href":"https:\/\/siliconcarbideceramic.net\/cs\/wp-json\/wp\/v2\/media?parent=34"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/cs\/wp-json\/wp\/v2\/categories?post=34"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/cs\/wp-json\/wp\/v2\/tags?post=34"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}