{"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":"technologie-slinuteho-karbidu-kremiku","status":"publish","type":"post","link":"https:\/\/siliconcarbide.net\/cs\/technology-of-sintered-silicon-carbide\/","title":{"rendered":"technologie slinut\u00e9ho karbidu k\u0159em\u00edku"},"content":{"rendered":"<p>Keramika z karbidu k\u0159em\u00edku se st\u00e1le v\u00edce pou\u017e\u00edv\u00e1 d\u00edky sv\u00e9 vynikaj\u00edc\u00ed pevnosti p\u0159i vysok\u00fdch teplot\u00e1ch, odolnosti proti opot\u0159eben\u00ed, odolnosti proti korozi a tepeln\u00fdm \u0161ok\u016fm. Keramika SiC hraje st\u00e1le d\u016fle\u017eit\u011bj\u0161\u00ed roli v oblasti materi\u00e1l\u016f. Proto je nal\u00e9hav\u011b nutn\u00e9 prov\u00e1d\u011bt dal\u0161\u00ed v\u00fdzkum materi\u00e1l\u016f SiC s c\u00edlem sn\u00ed\u017eit v\u00fdrobn\u00ed n\u00e1klady, zjednodu\u0161it v\u00fdrobn\u00ed procesy a podpo\u0159it v\u00fdvoj v\u00fdrobk\u016f z keramiky SiC p\u0159i neust\u00e1l\u00e9m zlep\u0161ov\u00e1n\u00ed jejich vynikaj\u00edc\u00edch vlastnost\u00ed.<\/p>\n<p>Sp\u00e9k\u00e1n\u00ed karbidu k\u0159em\u00edku je pova\u017eov\u00e1no za nejslibn\u011bj\u0161\u00ed metodu sp\u00e9k\u00e1n\u00ed SiC. atmosf\u00e9rick\u00fdm sp\u00e9k\u00e1n\u00edm lze p\u0159ipravit keramiku z karbidu k\u0159em\u00edku s velk\u00fdmi rozm\u011bry a slo\u017eit\u00fdm tvarem. Spole\u010dnost GE Corporation ze Spojen\u00fdch st\u00e1t\u016f p\u0159ijala n\u00e1sleduj\u00edc\u00ed opat\u0159en\u00ed: \u03b2 - p\u0159id\u00e1n\u00ed boru a uhl\u00edku do SiC, sp\u00e9k\u00e1n\u00ed p\u0159i teplot\u011b nad 2 000 \u2103 v inertn\u00ed atmosf\u00e9\u0159e a z\u00edsk\u00e1n\u00ed slinut\u00e9ho karbidu k\u0159em\u00edku s hustotou vy\u0161\u0161\u00ed ne\u017e 98% p\u0159i teplot\u011b 2020 \u2103. S Y2O3 a Al2O3 jako pomocn\u00fdmi l\u00e1tkami p\u0159i sp\u00e9k\u00e1n\u00ed a YAG (Y3Al5O12) s n\u00edzkou teplotou t\u00e1n\u00ed jako z\u00e1kladn\u00ed slo\u017ekou vyp\u00e1lil \u0160anghajsk\u00fd institut silik\u00e1t\u016f \u010c\u00ednsk\u00e9 akademie v\u011bd keramiku z karbidu k\u0159em\u00edku s pevnost\u00ed v ohybu 707 a lomovou hou\u017eevnatost\u00ed 10,7 p\u0159i 1850 \u2103. Liu Baoying ze \u0160an-tungsk\u00e9ho institutu pro v\u00fdzkum a navrhov\u00e1n\u00ed silik\u00e1t\u016f p\u0159idal vhodn\u00e9 mno\u017estv\u00ed Al2O3 a Y2O3 jako sp\u00e9kac\u00ed p\u0159\u00edsady a vyrobil jemn\u00e9 kompozitn\u00ed keramick\u00e9 materi\u00e1ly SiC s relativn\u00ed hustotou 97% p\u0159i 1780 \u2103 pomoc\u00ed procesu injekt\u00e1\u017en\u00edho tvarov\u00e1n\u00ed, kter\u00e9 mohou splnit pot\u0159eby pr\u016fmyslov\u00e9 v\u00fdroby mechanick\u00fdch t\u011bsn\u011bn\u00ed a keramiky odoln\u00e9 proti opot\u0159eben\u00ed. Dosavadn\u00ed v\u00fdzkum slinut\u00e9ho karbidu k\u0159em\u00edku v\u0161ak nen\u00ed p\u0159\u00edli\u0161 d\u016fkladn\u00fd, co\u017e je t\u0159eba d\u00e1le prohloubit.<\/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=\"slinut\u00fd karbid k\u0159em\u00edku\" 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\/cs\/wp-json\/wp\/v2\/posts\/552","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/siliconcarbide.net\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/siliconcarbide.net\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/siliconcarbide.net\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/siliconcarbide.net\/cs\/wp-json\/wp\/v2\/comments?post=552"}],"version-history":[{"count":3,"href":"https:\/\/siliconcarbide.net\/cs\/wp-json\/wp\/v2\/posts\/552\/revisions"}],"predecessor-version":[{"id":556,"href":"https:\/\/siliconcarbide.net\/cs\/wp-json\/wp\/v2\/posts\/552\/revisions\/556"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/siliconcarbide.net\/cs\/wp-json\/wp\/v2\/media\/555"}],"wp:attachment":[{"href":"https:\/\/siliconcarbide.net\/cs\/wp-json\/wp\/v2\/media?parent=552"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/siliconcarbide.net\/cs\/wp-json\/wp\/v2\/categories?post=552"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/siliconcarbide.net\/cs\/wp-json\/wp\/v2\/tags?post=552"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}