Karbid krem\u00edka (SiC) je jednou z najv\u0161estrannej\u0161\u00edch \u017eiaruvzdorn\u00fdch keram\u00edk. Mo\u017eno ho n\u00e1js\u0165 v aplik\u00e1ci\u00e1ch vy\u017eaduj\u00facich vysok\u00fa teplotn\u00fa pevnos\u0165 a odolnos\u0165 vo\u010di kor\u00f3zii kyselinami; okrem toho sa m\u00f4\u017ee pochv\u00e1li\u0165 vynikaj\u00facou odolnos\u0165ou proti opotrebovaniu - \u010dasto sa pou\u017e\u00edva v nepriestreln\u00fdch vest\u00e1ch.<\/p>\n
V\u010faka svojej n\u00edzkej tepelnej roz\u0165a\u017enosti, tuhosti a tvrdosti je zaf\u00edrov\u00e9 zrkadlo ide\u00e1lnym materi\u00e1lom pre zrkadl\u00e1 astronomick\u00fdch teleskopov. Okrem toho sa \u010dasto pou\u017e\u00edva v sol\u00e1rnych elektr\u00e1r\u0148ach na zachyt\u00e1vanie a premenu svetelnej energie na elektrick\u00fa.<\/p>\n
Rekry\u0161talizovan\u00fd karbid krem\u00edka je vynikaj\u00faci kon\u0161truk\u010dn\u00fd materi\u00e1l pre vysokoteplotn\u00e9 aplik\u00e1cie. V\u010faka vynikaj\u00facej odolnosti vo\u010di oxid\u00e1cii a kor\u00f3zii sa tento univerz\u00e1lny materi\u00e1l d\u00e1 \u013eahko formova\u0165 do r\u00f4znych tvarov a ve\u013ekost\u00ed - okrem in\u00e9ho sa z neho vyr\u00e1ba n\u00e1bytok, m\u00e9di\u00e1 do plynov\u00fdch hor\u00e1kov a filtre pevn\u00fdch \u010dast\u00edc. Rekry\u0161talizovan\u00fd karbid krem\u00edka sl\u00fa\u017ei aj ako z\u00e1klad sol\u00e1rnych elektr\u00e1rn\u00ed, ktor\u00e9 premie\u0148aj\u00fa slne\u010dn\u00e9 svetlo na tepeln\u00fa energiu, z ktorej sa n\u00e1sledne vyr\u00e1ba elektrick\u00e1 energia.<\/p>\n
RSiC sa vyr\u00e1ba spekan\u00edm vysokokvalitn\u00fdch surov\u00edn pri vysok\u00fdch teplot\u00e1ch, pri\u010dom na jeho vytvorenie sa pou\u017e\u00edva rast kr\u010dkov medzi \u010dasticami. V\u00fdsledkom je extr\u00e9mne vysok\u00e1 hustota zelen\u00e9ho materi\u00e1lu, v\u010faka \u010domu je vhodn\u00fd pre zlo\u017eit\u00e9 tvary.<\/p>\n
Tvrdos\u0165, tuhos\u0165 a tepeln\u00e1 vodivos\u0165 robia z RSiC vynikaj\u00facu vo\u013ebu materi\u00e1lu pre zrkadl\u00e1 v astronomick\u00fdch teleskopoch. Okrem toho jeho n\u00edzky koeficient tepelnej roz\u0165a\u017enosti mu umo\u017e\u0148uje \u013eahko odol\u00e1va\u0165 r\u00fdchlemu ochladzovaniu a zmen\u00e1m teploty. V\u00fdber tohto materi\u00e1lu je okrem toho ve\u013emi v\u00fdhodn\u00fd pre kon\u0161truk\u010dn\u00e9 komponenty, ktor\u00e9 si vy\u017eaduj\u00fa odolnos\u0165 vo\u010di vibr\u00e1ci\u00e1m alebo n\u00e1razom, ako aj pre kon\u0161truk\u010dn\u00e9 diely vyroben\u00e9 z RSiC v kombin\u00e1cii s kovmi, ako je \u017eelezo. M\u00f4\u017ee sa vyr\u00e1ba\u0165 hybridn\u00e1 keramika RSiC.<\/p>\n
Karbid krem\u00edka m\u00e1 vynikaj\u00faci elektrick\u00fd odpor a tepeln\u00fa vodivos\u0165, v\u010faka \u010domu je v\u00fdborn\u00fdm izolantom. Okrem toho je v\u010faka svojmu tvrd\u00e9mu a chemicky inertn\u00e9mu zlo\u017eeniu odoln\u00fd vo\u010di opotrebovaniu a kor\u00f3zii; \u010falej odol\u00e1va vysok\u00fdm teplot\u00e1m, nap\u00e4tiu, ako aj n\u00edzkemu koeficientu tepelnej roz\u0165a\u017enosti - navy\u0161e pon\u00faka vysok\u00fa \u00farove\u0148 odolnosti proti opotrebovaniu a kor\u00f3zii, ako aj vysok\u00fa ochranu proti oderu\/er\u00f3zii\/kor\u00f3zii a odol\u00e1va aj kyselin\u00e1m.<\/p>\n
Na v\u00fdrobu komponentov RSiC mo\u017eno pou\u017ei\u0165 klzn\u00e9 odlievanie, vytl\u00e1\u010danie a vstrekovanie. Po pou\u017eit\u00ed t\u00fdchto procesov na v\u00fdrobu r\u00f4znych tvarov a ve\u013ekost\u00ed dielov z RSiC sa m\u00f4\u017ee n\u00e1sledne spekan\u00edm pri vysok\u00fdch teplot\u00e1ch v peci prekry\u0161talizova\u0165 jeho kremi\u010dit\u00e9 spojivo na \u010dist\u00fd materi\u00e1l RSiC.<\/p>\n
RSiC mo\u017eno po spekan\u00ed infiltrova\u0165 kovmi a vytvori\u0165 tak kompozitn\u00e9 materi\u00e1ly so \u0161irok\u00fdm spektrom pou\u017eitia, od filtr\u00e1cie v\u00fdfukov\u00fdch plynov dieselov\u00fdch vozidiel a filtr\u00e1cie pri taven\u00ed kovov a\u017e po pou\u017eitie ako n\u00e1hrada azbestu v jadrov\u00fdch reaktoroch. Okrem toho sa RSiC na rozdiel od mnoh\u00fdch keramick\u00fdch materi\u00e1lov vyzna\u010duje ve\u013emi n\u00edzkou p\u00f3rovitos\u0165ou a zmr\u0161\u0165ovan\u00edm po\u010das v\u00fdpalu, \u010do z neho rob\u00ed vynikaj\u00faci materi\u00e1l pre ve\u013ek\u00e9 v\u00fdrobky, ako je napr\u00edklad n\u00e1bytok do pec\u00ed.<\/p>\n
Karbid krem\u00edka je v\u010faka svojim v\u00fdnimo\u010dn\u00fdm mechanick\u00fdm a tepeln\u00fdm vlastnostiam \u0161iroko pou\u017e\u00edvan\u00fdm materi\u00e1lom pre r\u00f4zne priemyseln\u00e9 aplik\u00e1cie. V\u010faka svojej \u0161peci\u00e1lnej mikro\u0161trukt\u00fare karbid krem\u00edka odol\u00e1va vysok\u00fdm teplot\u00e1m a elektrick\u00e9mu nam\u00e1haniu \u00fa\u010dinnej\u0161ie ako in\u00e9 materi\u00e1ly a m\u00f4\u017ee sa tie\u017e pochv\u00e1li\u0165 \u013eahk\u00fdmi vlastnos\u0165ami, ktor\u00e9 zni\u017euj\u00fa hmotnos\u0165 a z\u00e1rove\u0148 zlep\u0161uj\u00fa energetick\u00fa \u00fa\u010dinnos\u0165.<\/p>\n
RSiC mo\u017eno vyr\u00e1ba\u0165 viacer\u00fdmi technikami vr\u00e1tane odlievania, vytl\u00e1\u010dania a vstrekovania. Po zostaven\u00ed ako zelen\u00e9 teles\u00e1 sa m\u00f4\u017eu spiec\u0165 v peci pri vysok\u00fdch teplot\u00e1ch, \u010do sp\u00f4sob\u00ed rekry\u0161taliz\u00e1ciu \u010dast\u00edc karbidu krem\u00edka, \u010d\u00edm sa vytvor\u00ed jeho charakteristick\u00e1 mikro\u0161trukt\u00fara a nakoniec sa z\u00edska jedine\u010dn\u00e1 mikro\u0161trukt\u00fara RSiC.<\/p>\n
V\u010faka svojej vynikaj\u00facej odolnosti vo\u010di vysok\u00fdm teplot\u00e1m a chemik\u00e1li\u00e1m sa RSiC \u0161iroko vyu\u017e\u00edva na v\u00fdrobu keramiky a kon\u0161truk\u010dn\u00fdch prvkov. Je obzvl\u00e1\u0161\u0165 vhodn\u00fd na pou\u017eitie ako n\u00e1bytok do pec\u00ed, ako s\u00fa valce a pr\u00edstre\u0161ky, aby odolal extr\u00e9mnemu teplu vznikaj\u00facemu po\u010das procesu vypa\u013eovania. Okrem toho sa RSiC m\u00f4\u017ee vyu\u017e\u00edva\u0165 aj v leteck\u00fdch a kozmick\u00fdch aplik\u00e1ci\u00e1ch, ako s\u00fa raketov\u00e9 d\u00fdzy a pancierov\u00e9 dosky - chr\u00e1ni \u0161tarty rakiet a z\u00e1rove\u0148 poskytuje ochranu pred balistick\u00fdmi hrozbami.<\/p>\n
Ak va\u0161e zariadenie mus\u00ed pracova\u0165 v prostred\u00ed s vysok\u00fdmi teplotami, je potrebn\u00fd \u0161peci\u00e1lny lo\u017eiskov\u00fd materi\u00e1l. K dispoz\u00edcii s\u00fa r\u00f4zne druhy s r\u00f4znymi ve\u013ekos\u0165ami a tvarmi. V\u00fdber ide\u00e1lneho materi\u00e1lu m\u00f4\u017ee zv\u00fd\u0161i\u0165 \u00fa\u010dinnos\u0165 a z\u00e1rove\u0148 pred\u013a\u017ei\u0165 \u017eivotnos\u0165.<\/p>\n
Rekry\u0161talizovan\u00fd karbid krem\u00edka je vynikaj\u00faci vysokoteplotn\u00fd kon\u0161truk\u010dn\u00fd materi\u00e1l v\u010faka svojej pevnosti, odolnosti proti kor\u00f3zii, odolnosti proti oxid\u00e1cii a n\u00edzkemu koeficientu tepelnej roz\u0165a\u017enosti. V\u010faka t\u00fdmto vlastnostiam je vynikaj\u00facim materi\u00e1lom na v\u00fdrobu n\u00e1bytku do pec\u00ed a valcov a v\u00fdrazne zni\u017euje pomer za\u0165a\u017eenia a s\u00fa\u010dasne vypa\u013eovan\u00fdch kusov porcel\u00e1nu, ako aj jednotkov\u00fa spotrebu energie v peciach.<\/p>\n
Zinkovo eloxovan\u00fd z\u00e1ves je najlep\u0161\u00ed sp\u00f4sob, ako pou\u017e\u00edva\u0165 RSiC ako lo\u017eisko, ktor\u00e9 chr\u00e1ni svoje tesnenie pred ne\u010distotami a z\u00e1rove\u0148 udr\u017eiava mazivo na mieste, aby mohlo vykon\u00e1va\u0165 svoju pr\u00e1cu.<\/p>","protected":false},"excerpt":{"rendered":"
Silicon carbide (SiC) is one of the most versatile refractory ceramics. It can be found in applications requiring high temperature strength and resistance to acid corrosion; additionally it boasts excellent wear resistance – often used in bulletproof vests. With its low thermal expansion, rigidity, and hardness characteristics, sapphire mirror material is an ideal mirror material […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"categories":[64],"tags":[],"class_list":["post-188","post","type-post","status-publish","format-standard","hentry","category-knowledge"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/ceramicatijolart.com\/sk\/wp-json\/wp\/v2\/posts\/188","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ceramicatijolart.com\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ceramicatijolart.com\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ceramicatijolart.com\/sk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ceramicatijolart.com\/sk\/wp-json\/wp\/v2\/comments?post=188"}],"version-history":[{"count":1,"href":"https:\/\/ceramicatijolart.com\/sk\/wp-json\/wp\/v2\/posts\/188\/revisions"}],"predecessor-version":[{"id":189,"href":"https:\/\/ceramicatijolart.com\/sk\/wp-json\/wp\/v2\/posts\/188\/revisions\/189"}],"wp:attachment":[{"href":"https:\/\/ceramicatijolart.com\/sk\/wp-json\/wp\/v2\/media?parent=188"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ceramicatijolart.com\/sk\/wp-json\/wp\/v2\/categories?post=188"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ceramicatijolart.com\/sk\/wp-json\/wp\/v2\/tags?post=188"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}