{"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":"

Karbid k\u0159em\u00edku spojen\u00fd nitridem je nov\u00fd typ modern\u00edho \u017e\u00e1ruvzdorn\u00e9ho materi\u00e1lu. Mezi jeho hlavn\u00ed v\u00fdrobky pat\u0159\u00ed radia\u010dn\u00ed trubice z karbidu k\u0159em\u00edku spojen\u00e9ho nitridem, cihly, police z karbidu k\u0159em\u00edku spojen\u00e9ho nitridem a dal\u0161\u00ed. Vlastnosti a pou\u017eit\u00ed 1. Karbid k\u0159em\u00edku spojen\u00fd nitridem, kter\u00fd m\u00e1 tvrdou strukturu a tvrdost podle Mohsovy stupnice p\u0159ibli\u017en\u011b 9, pat\u0159\u00ed mezi nejtvrd\u0161\u00ed nekovov\u00e9 materi\u00e1ly, na druh\u00e9m m\u00edst\u011b\u2026 <\/p>","protected":false},"author":1,"featured_media":0,"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":[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}]}}