{"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":"

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

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

\"spekan\u00fd<\/a><\/p>","protected":false},"excerpt":{"rendered":"

Keramika z karbidu krem\u00edka sa vyu\u017e\u00edva \u010doraz \u0161ir\u0161ie v\u010faka svojej vynikaj\u00facej pevnosti pri vysok\u00fdch teplot\u00e1ch, odolnosti proti opotrebeniu, kor\u00f3zii a tepeln\u00fdm \u0161okom. Keramika SiC zohr\u00e1va \u010doraz d\u00f4le\u017eitej\u0161iu \u00falohu v oblasti materi\u00e1lov. Preto je naliehav\u00e9 uskuto\u010dni\u0165 \u010fal\u0161\u00ed v\u00fdskum materi\u00e1lov SiC s cie\u013eom zn\u00ed\u017ei\u0165 v\u00fdrobn\u00e9 n\u00e1klady, zjednodu\u0161i\u0165\u2026 <\/p>","protected":false},"author":1,"featured_media":555,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","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}]}}