{"id":12,"date":"2022-12-21T20:54:38","date_gmt":"2022-12-21T12:54:38","guid":{"rendered":"http:\/\/siliconcarbideceramic.net\/?p=12"},"modified":"2022-12-21T21:03:46","modified_gmt":"2022-12-21T13:03:46","slug":"razlicne-vrste-silicijevega-karbida-keramike","status":"publish","type":"post","link":"https:\/\/siliconcarbideceramic.net\/sl\/different-kind-silicon-carbide-ceramic\/","title":{"rendered":"razli\u010dne vrste silicijevega karbida keramike"},"content":{"rendered":"

Postopek priprave reakcijsko vezanega silicijevega karbida je razmeroma preprost. ta vrsta silicijevega karbidne keramike neposredno uporablja silicijev karbid z dolo\u010deno porazdelitvijo velikosti delcev, po me\u0161anju z ogljikom tvori zarodke in se nato pri visoki temperaturi razoglji\u010di. Del silicija reagira z ogljikom, da nastane SiC, ki se zdru\u017ei s SIC v prvotnem zarodku in dose\u017ee namen sintranja. Obstajata dve metodi uplinjanja: prva je doseganje temperature taljenja silicija, ustvarjanje temperature taljenja silicija in ustvarjanje silicijeve pare, Namen sintranja se dose\u017ee z infiltracijo silicijeve pare v zarodek. Proizvodni stro\u0161ki sintranega telesa iz SiC, pripravljenega s tem postopkom, so nizki. Vendar ta postopek dolo\u010da preostali prosti silicij v sintranem zarodku. Ta del silicija bi moral vplivati na uporabo prihodnjih izdelkov. Po eni strani zmanj\u0161uje trdnost in odpornost sintranega telesa proti obrabi, po drugi strani pa zaradi obstoja prostega silicija silicijev karbid ni odporen proti kislini.<\/p>\n

Brez spekanja keramike iz silicijevega karbida: breztla\u010dno spekanje silicijevega karbida lahko razdelimo na spekanje v trdni fazi in spekanje v teko\u010di fazi. \u010cistost breztla\u010dnega sintranja silicijevega karbida je visoka, vsebnost silicijevega karbida je ve\u010dja od 97%, odpornost proti koroziji kislin in alkalij je veliko bolj\u0161a kot pri reakcijsko sintranem silicijevem karbidu in je enostavno dose\u010di serijsko proizvodnjo.<\/p>\n

Vro\u010de stiskanje silicijevega karbida je eden naju\u010dinkovitej\u0161ih na\u010dinov za pripravo keramike iz silicijevega karbida visoke gostote. Lastnosti vro\u010de stisnjenega silicijevega karbida so na splo\u0161no bolj\u0161e od lastnosti reakcijsko sintranega in brez tlaka sintranega silicijevega karbida, zlasti njegova drobna zrna, visoka kompaktnost ter visoka trdnost in trdota izdelkov.<\/p>\n

Visokotemperaturno vro\u010de izostati\u010dno stiskanje za sintranje keramike iz silicijevega karbida: visokotemperaturno vro\u010de izostati\u010dno stiskanje je napreden postopek sintranja keramike. Kerami\u010dni prah ali kerami\u010dni zarodek se zapakira in vstavi v napravo za visokotemperaturno vro\u010de izostati\u010dno stiskanje, nato pa se pri visoki temperaturi in visokem tlaku spasira v gosto telo. Zanj je zna\u010dilno hkratno in enakomerno stiskanje, ki se imenuje HIP.<\/p>\n

Rekristalizirana keramika iz silicijevega karbida: po me\u0161anju, oblikovanju in su\u0161enju se surovine za\u017egejo v zra\u010dno izolirani visokotemperaturni elektri\u010dni pe\u010di pri 2300 ~ 2500 \u2103. Ko temperatura prese\u017ee 2100 \u2103, silicijev karbid izhlapi in kondenzira, kar povzro\u010di nastanek rekristalizirane keramike iz silicijevega karbida, ki se pri sintranju ne kr\u010di in ima samosvojo strukturo.<\/p>\n

\"keramika<\/p>","protected":false},"excerpt":{"rendered":"

The preparation process of reaction bonded silicon carbide is relatively simple. this kind silicon carbide ceramic directly uses silicon carbide […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","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-12","post","type-post","status-publish","format-standard","hentry","category-sic-knowledge"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/siliconcarbideceramic.net\/sl\/wp-json\/wp\/v2\/posts\/12","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/siliconcarbideceramic.net\/sl\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/siliconcarbideceramic.net\/sl\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/sl\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/sl\/wp-json\/wp\/v2\/comments?post=12"}],"version-history":[{"count":4,"href":"https:\/\/siliconcarbideceramic.net\/sl\/wp-json\/wp\/v2\/posts\/12\/revisions"}],"predecessor-version":[{"id":18,"href":"https:\/\/siliconcarbideceramic.net\/sl\/wp-json\/wp\/v2\/posts\/12\/revisions\/18"}],"wp:attachment":[{"href":"https:\/\/siliconcarbideceramic.net\/sl\/wp-json\/wp\/v2\/media?parent=12"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/sl\/wp-json\/wp\/v2\/categories?post=12"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/sl\/wp-json\/wp\/v2\/tags?post=12"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}