{"id":552,"date":"2022-12-20T22:15:37","date_gmt":"2022-12-20T14:15:37","guid":{"rendered":"https:\/\/siliconcarbide.net\/?p=552"},"modified":"2022-12-20T22:36:50","modified_gmt":"2022-12-20T14:36:50","slug":"technologia-spekaneho-karbidu-kremika","status":"publish","type":"post","link":"https:\/\/siliconcarbide.net\/sk\/technology-of-sintered-silicon-carbide\/","title":{"rendered":"technol\u00f3gia spekan\u00e9ho karbidu krem\u00edka"},"content":{"rendered":"<p>Keramika z karbidu krem\u00edka sa \u010doraz viac pou\u017e\u00edva v\u010faka svojej vynikaj\u00facej pevnosti pri vysok\u00fdch teplot\u00e1ch, odolnosti proti opotrebovaniu, odolnosti proti kor\u00f3zii a tepeln\u00fdm \u0161okom. SiC keramika zohr\u00e1va \u010doraz d\u00f4le\u017eitej\u0161iu \u00falohu v oblasti materi\u00e1lov. Preto je naliehavo potrebn\u00e9 vykon\u00e1va\u0165 \u010fal\u0161\u00ed v\u00fdskum materi\u00e1lov SiC s cie\u013eom zn\u00ed\u017ei\u0165 v\u00fdrobn\u00e9 n\u00e1klady, zjednodu\u0161i\u0165 v\u00fdrobn\u00e9 procesy a podpori\u0165 v\u00fdvoj v\u00fdrobkov z keramiky SiC pri neust\u00e1lom zlep\u0161ovan\u00ed ich vynikaj\u00facich vlastnost\u00ed.<\/p>\n<p>spekan\u00fd karbid krem\u00edka sa pova\u017euje za najs\u013eubnej\u0161iu met\u00f3du spekania SiC. atmosf\u00e9rick\u00fdm spekan\u00edm mo\u017eno pripravi\u0165 keramiku z karbidu krem\u00edka s ve\u013ek\u00fdmi rozmermi a komplexn\u00fdm tvarom. Spolo\u010dnos\u0165 GE Corporation zo Spojen\u00fdch \u0161t\u00e1tov prijala tieto opatrenia: \u03b2 - pridanie b\u00f3ru a uhl\u00edka do SiC, spekanie pri teplote nad 2 000 \u2103 v inertnej atmosf\u00e9re a z\u00edskanie spekan\u00e9ho karbidu krem\u00edka s hustotou vy\u0161\u0161ou ako 98% pri teplote 2020 \u2103. S Y2O3 a Al2O3 ako pomocn\u00fdmi l\u00e1tkami pri spekan\u00ed a YAG (Y3Al5O12) s n\u00edzkou teplotou topenia ako z\u00e1kladnou zlo\u017ekou sa na \u0160anghajskom in\u0161tit\u00fate silik\u00e1tov \u010c\u00ednskej akad\u00e9mie vied vyp\u00e1lila keramika z karbidu krem\u00edka s pevnos\u0165ou v ohybe 707 a lomovou h\u00fa\u017eevnatos\u0165ou 10,7 pri 1850 \u2103. Liu Baoying zo \u0160an-tungsk\u00e9ho silik\u00e1tov\u00e9ho v\u00fdskumn\u00e9ho a kon\u0161truk\u010dn\u00e9ho \u00fastavu pridal vhodn\u00e9 mno\u017estvo Al2O3 a Y2O3 ako spekanie pr\u00edsad a vyrobil jemn\u00e9 kompozitn\u00e9 keramick\u00e9 materi\u00e1ly SiC s relat\u00edvnou hustotou 97% pri 1780 \u2103 pou\u017eit\u00edm procesu injekt\u00e1\u017eneho tvarovania, ktor\u00e9 m\u00f4\u017eu sp\u013a\u0148a\u0165 potreby priemyselnej v\u00fdroby mechanick\u00fdch tesnen\u00ed a keramiky odolnej proti opotrebovaniu. V\u00fdskum spekan\u00e9ho karbidu krem\u00edka v\u0161ak zatia\u013e nie je ve\u013emi d\u00f4kladn\u00fd, \u010do je potrebn\u00e9 \u010falej preh\u013abi\u0165.<\/p>\n<p><a href=\"http:\/\/siliconcarbide.net\/wp-content\/uploads\/2022\/12\/sintered-silicon-carbide.jpg\"><img decoding=\"async\" class=\"size-full wp-image-555 lazyload\" data-src=\"http:\/\/siliconcarbide.net\/wp-content\/uploads\/2022\/12\/sintered-silicon-carbide.jpg\" alt=\"spekan\u00fd karbid krem\u00edka\" width=\"552\" height=\"461\" data-srcset=\"https:\/\/siliconcarbide.net\/wp-content\/uploads\/2022\/12\/sintered-silicon-carbide.jpg 552w, https:\/\/siliconcarbide.net\/wp-content\/uploads\/2022\/12\/sintered-silicon-carbide-300x251.jpg 300w\" data-sizes=\"(max-width: 552px) 100vw, 552px\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" style=\"--smush-placeholder-width: 552px; --smush-placeholder-aspect-ratio: 552\/461;\" \/><\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>silicon carbide ceramic are more and more widely used because of their excellent high temperature strength, wear resistance, corrosion resistance and thermal shock resistance. SiC ceramics play an increasingly important role in the field of materials. Therefore, it is urgent to carry out further research on SiC materials in order to reduce production costs, simplify [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":555,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":""},"categories":[30],"tags":[],"class_list":["post-552","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sic-knowledge"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/siliconcarbide.net\/sk\/wp-json\/wp\/v2\/posts\/552","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/siliconcarbide.net\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/siliconcarbide.net\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/siliconcarbide.net\/sk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/siliconcarbide.net\/sk\/wp-json\/wp\/v2\/comments?post=552"}],"version-history":[{"count":3,"href":"https:\/\/siliconcarbide.net\/sk\/wp-json\/wp\/v2\/posts\/552\/revisions"}],"predecessor-version":[{"id":556,"href":"https:\/\/siliconcarbide.net\/sk\/wp-json\/wp\/v2\/posts\/552\/revisions\/556"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/siliconcarbide.net\/sk\/wp-json\/wp\/v2\/media\/555"}],"wp:attachment":[{"href":"https:\/\/siliconcarbide.net\/sk\/wp-json\/wp\/v2\/media?parent=552"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/siliconcarbide.net\/sk\/wp-json\/wp\/v2\/categories?post=552"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/siliconcarbide.net\/sk\/wp-json\/wp\/v2\/tags?post=552"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}