Pr\u00e1\u0161ek karbidu k\u0159em\u00edku je vysoce v\u00fdkonn\u00fd brusn\u00fd materi\u00e1l, kter\u00fd se svou tvrdost\u00ed \u0159ad\u00ed na druh\u00e9 m\u00edsto za diamant. Krom\u011b toho je d\u00edky sv\u00e9 odolnosti proti opot\u0159eben\u00ed a korozi dobrou volbou.<\/p>\n
Vodiv\u00fd polovodi\u010dov\u00fd pr\u00e1\u0161ek karbidu k\u0159em\u00edku 3C-SiC je ur\u010den k pou\u017eit\u00ed p\u0159i p\u011bstov\u00e1n\u00ed monokrystal\u016f vodiv\u00e9ho karbidu k\u0159em\u00edku t\u0159et\u00ed generace. D\u00e1le slou\u017e\u00ed jako surovina pro v\u00fdrobu \u017e\u00e1ruvzdorn\u00fdch materi\u00e1l\u016f.<\/p>\n
Karbid k\u0159em\u00edku, slo\u017een\u00fd z k\u0159em\u00edku a uhl\u00edku, je na Mohsov\u011b stupnici nejtvrd\u0161\u00edch syntetick\u00fdch materi\u00e1l\u016f na druh\u00e9m m\u00edst\u011b za diamantem. D\u00edky sv\u00e9 pevnosti je pr\u00e1\u0161kov\u00fd karbid k\u0159em\u00edku Ready-Press vynikaj\u00edc\u00edm materi\u00e1lem pro v\u00fdrobu brusn\u00fdch materi\u00e1l\u016f a \u0159ezn\u00fdch n\u00e1stroj\u016f, jako jsou brusn\u00e9 kotou\u010de a \u010depele.<\/p>\n
D\u00edky sv\u00e9 fyzik\u00e1ln\u00ed tvrdosti je tento materi\u00e1l vhodn\u00fd i pro aplikace vy\u017eaduj\u00edc\u00ed odolnost proti erozi a abrazi, jako jsou trysky pro st\u0159\u00edk\u00e1n\u00ed, tryskac\u00ed trysky a sou\u010d\u00e1sti cyklon\u016f. Krom\u011b toho je d\u00edky sv\u00e9 odolnosti proti korozi odoln\u00fd v\u016f\u010di kyselin\u00e1m.<\/p>\n
D\u00edky sv\u00e9 \u010distot\u011b a pevnosti je k\u0159em\u00edk vynikaj\u00edc\u00edm materi\u00e1lem pro v\u00fdrobu polovodi\u010d\u016f. Jeho pou\u017eit\u00ed sah\u00e1 od v\u00fdroby desti\u010dek a substr\u00e1t\u016f pro LED diody a aplikace v\u00fdkonov\u00e9 elektroniky a\u017e po optoelektronick\u00e1 za\u0159\u00edzen\u00ed.<\/p>\n
Karbid k\u0159em\u00edku v pr\u00e1\u0161ku se vyzna\u010duje vynikaj\u00edc\u00ed odolnost\u00ed proti teplu a korozi, co\u017e z n\u011bj \u010din\u00ed ide\u00e1ln\u00ed \u017e\u00e1ruvzdornou surovinu.<\/p>\n
\u010cern\u00fd SiC se \u010dasto pou\u017e\u00edv\u00e1 p\u0159i v\u00fdrob\u011b brusn\u00fdch v\u00fdrobk\u016f, jako jsou brusn\u00e9 pap\u00edry a brusn\u00e9 kotou\u010de, \u0159ezn\u00e9 n\u00e1stroje, \u017e\u00e1ruvzdorn\u00e9 materi\u00e1ly a v leteck\u00e9m\/automobilov\u00e9m pr\u016fmyslu jako \u017e\u00e1ruvzdorn\u00fd materi\u00e1l pro brou\u0161en\u00ed, le\u0161t\u011bn\u00ed a lapov\u00e1n\u00ed kov\u016f a keramiky. D\u00edky sv\u00e9 extr\u00e9mn\u00ed tvrdosti je tak\u00e9 nezbytn\u00fd pro v\u00fdrobu \u0159ezn\u00fdch n\u00e1stroj\u016f a dal\u0161\u00edch z\u00e1kladn\u00edch sou\u010d\u00e1st\u00ed, jako jsou \u0159ezn\u00e9 n\u00e1stroje. \u010cern\u00fd SiC se rovn\u011b\u017e vyzna\u010duje velkou tepelnou vodivost\u00ed, d\u00edky n\u00ed\u017e je obl\u00edben\u00fd jako p\u0159\u00eddavn\u00e1 sou\u010d\u00e1st.<\/p>\n
V\u00fdrobci mohou vytvo\u0159it kubick\u00fd SiC bu\u010f reakc\u00ed a-SiC s grafitem p\u0159i reak\u010dn\u00edm sp\u00e9k\u00e1n\u00ed, nebo jeho p\u011bstov\u00e1n\u00edm pomoc\u00ed chemick\u00e9 depozice z par (CVD), p\u0159i\u010dem\u017e ob\u011b metody vedou k z\u00edsk\u00e1n\u00ed materi\u00e1lu s vysokou \u010distotou - d\u00edky tomu l\u00e9pe odol\u00e1v\u00e1 teplot\u00e1m a nap\u011bt\u00edm, tak\u017ee je vhodn\u00fd pro aplikace, jako jsou v\u00fdkonov\u00e9 polovodi\u010de a LED diody v nov\u00fdch energetick\u00fdch vozidlech. A\u010dkoli SiC lze vyr\u00e1b\u011bt tak\u00e9 p\u0159\u00edrodn\u00edmi mineraliza\u010dn\u00edmi procesy, v\u011bt\u0161ina se vyr\u00e1b\u00ed synteticky.<\/p>\n
Pr\u00e1\u0161ek karbidu k\u0159em\u00edku se d\u00edky sv\u00e9 extr\u00e9mn\u00ed tvrdosti \u0161iroce pou\u017e\u00edv\u00e1 jako brusivo v brusn\u00fdch kotou\u010d\u00edch a \u0159ezn\u00fdch n\u00e1stroj\u00edch a tak\u00e9 jako surovina v \u017e\u00e1ruvzdorn\u00fdch aplikac\u00edch, jako jsou automobilov\u00e9 brzdy nebo keramick\u00e9 desky v nepr\u016fst\u0159eln\u00fdch vest\u00e1ch. D\u00edky sv\u00e9 tvarovatelnosti a univerz\u00e1lnosti m\u00e1 tento pr\u00e1\u0161kov\u00fd materi\u00e1l mnoho aplikac\u00ed i mimo tato pou\u017eit\u00ed - lze jej dokonce tvarovat do forem na m\u00edru!<\/p>\n
SiC je ide\u00e1ln\u00ed pro aplikace vy\u017eaduj\u00edc\u00ed vysokou tepelnou vodivost a d\u00edky \u0161irok\u00e9 frekven\u010dn\u00ed odezv\u011b je vhodn\u00fd pro elektronick\u00e1 za\u0159\u00edzen\u00ed pracuj\u00edc\u00ed na vy\u0161\u0161\u00edch frekvenc\u00edch. Keramick\u00e9 vlastnosti SiC nav\u00edc zaji\u0161\u0165uj\u00ed dobrou odolnost proti oxidaci pro pou\u017eit\u00ed v prost\u0159ed\u00ed s vysok\u00fdmi teplotami.<\/p>\n
Moissanit se m\u016f\u017ee vyskytovat v p\u0159\u00edrod\u011b, ale je velmi vz\u00e1cn\u00fd. V\u011bt\u0161ina siC se vyr\u00e1b\u00ed synteticky; v\u011bt\u0161ina komer\u010dn\u011b dostupn\u00e9ho \u010dern\u00e9ho SiC poch\u00e1z\u00ed ze slinov\u00e1n\u00ed sm\u011bsi SiO2 a uhl\u00edkov\u00e9ho pr\u00e1\u0161ku, kterou poprv\u00e9 vyvinul Acheson v roce 1891 jako sou\u010d\u00e1st sv\u00e9 metody synt\u00e9zy diamantu. Dal\u0161\u00edmi p\u0159\u00edrodn\u00edmi zdroji mohou b\u00fdt meteority, lo\u017eiska korundu nebo kimberlit.<\/p>\n
Karbid k\u0159em\u00edku v pr\u00e1\u0161ku je pr\u016fmyslov\u00fd materi\u00e1l extr\u00e9mn\u011b odoln\u00fd proti korozi. D\u00edky sv\u00e9 fyzik\u00e1ln\u00ed tvrdosti jsou p\u00edskov\u00e1n\u00ed, brou\u0161en\u00ed, honov\u00e1n\u00ed a \u0159ez\u00e1n\u00ed vodn\u00edm paprskem ide\u00e1ln\u00edmi procesy, ve kter\u00fdch pr\u00e1\u0161kov\u00fd karbid k\u0159em\u00edku vynik\u00e1; jeho vysok\u00e1 tepeln\u00e1 vodivost nav\u00edc umo\u017e\u0148uje rychl\u00fd rozptyl tepla.<\/p>\n
Koroze p\u0159edstavuje pro pr\u016fmyslov\u00e9 materi\u00e1ly v\u00fdznamnou hrozbu. Aby si tyto materi\u00e1ly zachovaly svou integritu a trvanlivost, mus\u00ed b\u00fdt odoln\u00e9 proti oxidaci a korozi p\u0159i zv\u00fd\u0161en\u00fdch teplot\u00e1ch.<\/p>\n
\u010cern\u00fd karbid k\u0159em\u00edku vynik\u00e1 odolnost\u00ed proti korozi, co\u017e z n\u011bj \u010din\u00ed vynikaj\u00edc\u00ed materi\u00e1l pro automobilov\u00fd a leteck\u00fd pr\u016fmysl. Honov\u00e1n\u00ed a lapov\u00e1n\u00ed r\u016fzn\u00fdch sou\u010d\u00e1st\u00ed pro dosa\u017een\u00ed p\u0159esn\u00fdch rozm\u011br\u016f a hladk\u00fdch povrch\u016f se na tento materi\u00e1l velmi spol\u00e9h\u00e1, stejn\u011b jako ocel\u00e1rny, kter\u00e9 jej pou\u017e\u00edvaj\u00ed jako absorb\u00e9r kysl\u00edku p\u0159i v\u00fdrob\u011b oceli, zat\u00edmco jeho pou\u017eit\u00ed jako deoxid\u00e1toru pom\u00e1h\u00e1 zabr\u00e1nit oxidaci kov\u016f a oxidu k\u0159emi\u010dit\u00e9ho p\u0159i zpracov\u00e1n\u00ed uheln\u00e9 strusky.<\/p>","protected":false},"excerpt":{"rendered":"
Silicon Carbide Powder – High Efficiency Abrasive For Industrial Needs Silicon carbide powder is a high-performance abrasive material with second only to diamond in terms of hardness. Furthermore, its wear and corrosion resistance make it a good choice. Conductive semiconductor grade 3C-SiC silicon carbide powder is designed for use in growing third generation semiconductor conductive… \u010c\u00edst d\u00e1le »Pr\u00e1\u0161ek karbidu k\u0159em\u00edku: vysoce \u00fa\u010dinn\u00e9 brusivo pro pr\u016fmyslov\u00e9 pot\u0159eby<\/span><\/a><\/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":"off","neve_meta_content_width":70,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","footnotes":""},"categories":[15],"tags":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/advance-ceramics.com\/cs\/wp-json\/wp\/v2\/posts\/277"}],"collection":[{"href":"https:\/\/advance-ceramics.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/advance-ceramics.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/advance-ceramics.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/advance-ceramics.com\/cs\/wp-json\/wp\/v2\/comments?post=277"}],"version-history":[{"count":1,"href":"https:\/\/advance-ceramics.com\/cs\/wp-json\/wp\/v2\/posts\/277\/revisions"}],"predecessor-version":[{"id":278,"href":"https:\/\/advance-ceramics.com\/cs\/wp-json\/wp\/v2\/posts\/277\/revisions\/278"}],"wp:attachment":[{"href":"https:\/\/advance-ceramics.com\/cs\/wp-json\/wp\/v2\/media?parent=277"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/advance-ceramics.com\/cs\/wp-json\/wp\/v2\/categories?post=277"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/advance-ceramics.com\/cs\/wp-json\/wp\/v2\/tags?post=277"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}