{"id":382,"date":"2019-09-22T17:37:24","date_gmt":"2019-09-22T09:37:24","guid":{"rendered":"http:\/\/siliconcarbide.net\/?p=382"},"modified":"2019-09-22T20:23:23","modified_gmt":"2019-09-22T12:23:23","slug":"karbid-kremiku-vazany-nitridem","status":"publish","type":"post","link":"https:\/\/siliconcarbide.net\/cs\/nitride-bonded-silicon-carbide\/","title":{"rendered":"karbid k\u0159em\u00edku v\u00e1zan\u00fd nitridem"},"content":{"rendered":"

Karbid k\u0159em\u00edku s nitridovou vazbou je nov\u00fd typ pokro\u010dil\u00e9ho \u017e\u00e1ruvzdorn\u00e9ho materi\u00e1lu. Mezi jeho hlavn\u00ed v\u00fdrobky pat\u0159\u00ed radia\u010dn\u00ed trubky z karbidu k\u0159em\u00edku pojen\u00e9 nitridem, cihly, police z karbidu k\u0159em\u00edku pojen\u00e9 nitridem atd.<\/p>\n

V\u00fdkon a pou\u017eit\u00ed<\/p>\n

1.nitridov\u00e9 pojivo sic s tvrdou strukturou a tvrdost\u00ed p\u0159ibli\u017en\u011b 9 podle Mohsovy stupnice je v nekovov\u00fdch materi\u00e1lech druh\u00fdm nejtvrd\u0161\u00edm materi\u00e1lem po diamantu.<\/p>\n

2. Pevnost a tvrdost nitridov\u011b pojen\u00fdch polic z karbidu k\u0159em\u00edku jsou p\u0159i pokojov\u00e9 teplot\u011b vysok\u00e9. P\u0159i teplot\u011b 1200-1400 C jsou pevnost a tvrdost nitridem pojen\u00e9ho karbidu k\u0159em\u00edku t\u00e9m\u011b\u0159 stejn\u00e9 jako p\u0159i pokojov\u00e9 teplot\u011b za stejnou dobu. P\u0159i pou\u017eit\u00ed r\u016fzn\u00fdch atmosf\u00e9r m\u016f\u017ee maxim\u00e1ln\u00ed teplota bezpe\u010dn\u00e9ho pou\u017eit\u00ed dos\u00e1hnout 1650-1750 C.<\/p>\n

3. Koeficient tepeln\u00e9 rozta\u017enosti nitridu k\u0159em\u00edku spojen\u00e9ho karbidem k\u0159em\u00edku je mal\u00fd. Ve srovn\u00e1n\u00ed s karbidem k\u0159em\u00edku a jin\u00fdmi v\u00fdrobky je tepeln\u00e1 vodivost vy\u0161\u0161\u00ed. Nen\u00ed snadn\u00e9 vytv\u00e1\u0159et tepeln\u00e9 nap\u011bt\u00ed. nitrid lepen\u00fd sic m\u00e1 dobrou stabilitu p\u0159i tepeln\u00fdch r\u00e1zech a dlouhou \u017eivotnost. Odolnost proti te\u010den\u00ed p\u0159i vysok\u00fdch teplot\u00e1ch, odolnost proti korozi, odolnost proti extr\u00e9mn\u00edmu chladu a teplu, odolnost proti oxidaci, snadno se vyr\u00e1b\u011bj\u00ed v\u00fdrobky s vysokou rozm\u011brovou p\u0159esnost\u00ed a spl\u0148uj\u00ed po\u017eadavky.<\/p>\n

4. nitrid k\u0159em\u00edku v\u00e1zan\u00fd karbidem k\u0159em\u00edku se \u0161iroce pou\u017e\u00edv\u00e1 v \u017eelez\u00e1\u0159stv\u00ed, ocel\u00e1\u0159stv\u00ed, barevn\u00fdch kovech, chemick\u00fdch stavebn\u00edch materi\u00e1lech a dal\u0161\u00edch pr\u016fmyslov\u00fdch odv\u011btv\u00edch, p\u0159i \u00faspo\u0159e energie, ochran\u011b \u017eivotn\u00edho prost\u0159ed\u00ed a sni\u017eov\u00e1n\u00ed n\u00e1klad\u016f.<\/p>\n

\"nitridov\u00e1<\/a><\/p>\n

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

Nitride bonded silicon carbide is a new type of advanced refractory. Its main products include silicon nitride bonded silicon carbide radiation tubes, bricks, nitride bonded silicon carbide shelves and so on Performance and use 1.nitride bonded sic, with a hard texture and a Mohs hardness of about 9, are hardness materials in non-metallic materials, second […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":""},"categories":[20],"tags":[],"class_list":["post-382","post","type-post","status-publish","format-standard","hentry","category-silicon-nitride-bonded-silicon-carbide"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/siliconcarbide.net\/cs\/wp-json\/wp\/v2\/posts\/382","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=382"}],"version-history":[{"count":0,"href":"https:\/\/siliconcarbide.net\/cs\/wp-json\/wp\/v2\/posts\/382\/revisions"}],"wp:attachment":[{"href":"https:\/\/siliconcarbide.net\/cs\/wp-json\/wp\/v2\/media?parent=382"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/siliconcarbide.net\/cs\/wp-json\/wp\/v2\/categories?post=382"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/siliconcarbide.net\/cs\/wp-json\/wp\/v2\/tags?post=382"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}