A szil\u00edciumkarbidnak sz\u00e1mos alkalmaz\u00e1sa van, \u00e9s csiszol\u00f3anyagok, ker\u00e1miapor \u00e9s goly\u00f3\u00e1ll\u00f3 p\u00e1nc\u00e9l form\u00e1j\u00e1ban is megjelenik.<\/p>\n
A karborundum (SiC), a szil\u00edcium \u00e9s a sz\u00e9n krist\u00e1lyos vegy\u00fclete az egyik legkem\u00e9nyebb ismert anyag, amely egyedi tulajdons\u00e1gai r\u00e9v\u00e9n sz\u00e1mos ipar\u00e1gban hasznos\u00edthat\u00f3.<\/p>\n
A szil\u00edciumkarbid kem\u00e9ny \u00e9s rideg, ez\u00e9rt hat\u00e9kony csiszol\u00f3anyag. A gy\u00e1rt\u00f3k olyan term\u00e9kek el\u0151\u00e1ll\u00edt\u00e1s\u00e1hoz haszn\u00e1lj\u00e1k, mint a csiszol\u00f3pap\u00edr; ez az anyag k\u00fcl\u00f6nb\u00f6z\u0151 szemcsem\u00e9retekben kaphat\u00f3 a durv\u00e1t\u00f3l a nagyon finom szemcsem\u00e9retig a csiszol\u00e1si m\u0171veletekhez, a durv\u00e1bbakat a kezdeti csiszol\u00e1si m\u0171veletek sor\u00e1n nagy mennyis\u00e9g\u0171 anyag elt\u00e1vol\u00edt\u00e1s\u00e1ra haszn\u00e1lj\u00e1k, m\u00edg a finomabbak a munkadarab fel\u00fclet\u00e9t csiszolj\u00e1k a sima fel\u00fclet el\u0151\u00e1ll\u00edt\u00e1sa \u00e9rdek\u00e9ben.<\/p>\n
A csiszol\u00f3 szil\u00edciumkarbidot nagy \u00e1ll\u00f3k\u00e9pess\u00e9get ig\u00e9nyl\u0151 term\u00e9kekben haszn\u00e1lj\u00e1k, p\u00e9ld\u00e1ul aut\u00f3f\u00e9kekben \u00e9s goly\u00f3\u00e1ll\u00f3 mell\u00e9nyekben haszn\u00e1lt ker\u00e1mialemezekben. Ezenk\u00edv\u00fcl ez az anyag olyan kompozit anyagokban is megtal\u00e1lhat\u00f3, mint a sz\u00e9nsz\u00e1l-er\u0151s\u00edt\u00e9s\u0171 szil\u00edciumkarbid (CFRC).<\/p>\n
A szil\u00edciumkarbid n\u00e9lk\u00fcl\u00f6zhetetlen nyersanyag a t\u0171z\u00e1ll\u00f3 anyagok gy\u00e1rt\u00e1s\u00e1ban. Stabil k\u00e9miai tulajdons\u00e1gai, nagy h\u0151vezet\u0151 k\u00e9pess\u00e9ge, kis h\u0151t\u00e1gul\u00e1si egy\u00fctthat\u00f3ja \u00e9s kiv\u00e1l\u00f3 kop\u00e1s\u00e1ll\u00f3s\u00e1ga r\u00e9v\u00e9n ide\u00e1lis anyagot k\u00e9pez a magas h\u0151m\u00e9rs\u00e9kletnek ellen\u00e1ll\u00f3 csiszol\u00f3anyagok, p\u00e9ld\u00e1ul szalagcsiszol\u00f3anyagok, csiszol\u00f3pap\u00edr, csiszol\u00f3korongok \u00e9s olajk\u0151 szersz\u00e1mok, valamint monokrist\u00e1lyos szil\u00edcium\/polikrist\u00e1lyos szil\u00edcium szersz\u00e1mg\u00e9pek el\u0151\u00e1ll\u00edt\u00e1s\u00e1hoz.<\/p>\n
A f\u00e9m nagyon kem\u00e9ny \u00e9s t\u00f6r\u00e9keny, ugyanakkor nagy h\u0151- \u00e9s mechanikai stabilit\u00e1ssal rendelkezik. Sz\u00e9n- \u00e9s oxig\u00e9natomokkal k\u00f6r\u00fclvett szil\u00edciumatomokb\u00f3l \u00e1ll, \u00f6sszet\u00e9tele miatt ellen\u00e1ll a h\u0151nek \u00e9s a mechanikai ig\u00e9nybev\u00e9telnek, valamint leny\u0171g\u00f6z\u0151 olvad\u00e1spontja van.<\/p>\n
A tiszta szil\u00edciumkarbid sz\u00edntelen; az ipari min\u0151s\u00e9gek sz\u00edne a barn\u00e1t\u00f3l a feket\u00e9ig terjedhet a vas-, alum\u00ednium-, nitrog\u00e9n- vagy szabad sz\u00e9ntartalom miatt. L\u00e9teznek olyan d\u00f3zol\u00e1si m\u00f3dszerek, amelyek k\u00fcl\u00f6nb\u00f6z\u0151 f\u00e9lvezet\u0151ket hoznak l\u00e9tre: p\u00e9ld\u00e1ul az n-t\u00edpus\u00fa szil\u00edciumkarbidot nitrog\u00e9nnel vagy foszforral, m\u00edg a p-t\u00edpus\u00fa v\u00e1ltozatokat alum\u00ednium, b\u00f3r vagy gallium adal\u00e9kanyagokkal lehet doppingolni.<\/p>\n
A szil\u00edcium-karbid az egyik legkem\u00e9nyebb anyag a F\u00f6ld\u00f6n. Ez\u00e1ltal ide\u00e1lis a rend\u0151r\u00f6k \u00e9s a katon\u00e1k \u00e1ltal viselt goly\u00f3\u00e1ll\u00f3 mell\u00e9nyekhez, h\u0151tani tulajdons\u00e1gai pedig ellen\u00e1ll\u00f3v\u00e1 teszik a h\u0151vel szemben.<\/p>\n
Az ehhez hasonl\u00f3 ker\u00e1miaanyagok k\u00f6ztudottan er\u0151sek. Tov\u00e1bb\u00e1 a ker\u00e1mia kiv\u00e1l\u00f3an vezeti a h\u0151t \u00e9s az elektromoss\u00e1got - ami t\u00f6k\u00e9letess\u00e9 teszi az olyan elektronikus alkalmaz\u00e1sokhoz, mint a teljes\u00edtm\u00e9nytranzisztorok. Tov\u00e1bb\u00e1 a korr\u00f3zi\u00f3\u00e1ll\u00f3s\u00e1g egy m\u00e1sik el\u0151nye.<\/p>\n
A tiszta szil\u00edciumkarbid t\u00f6bbr\u00e9teg\u0171 szerkezettel rendelkezik, \u00e9s k\u00fcl\u00f6nb\u00f6z\u0151 polyt\u00edpusok vagy fajt\u00e1k l\u00e9teznek, amelyeket a r\u00e9tegz\u0151d\u00e9si sorrendj\u00fck k\u00fcl\u00f6nb\u00f6ztet meg, amely minden t\u00edpusnak egyedi fizikai jellemz\u0151t ad - p\u00e9ld\u00e1ul egyes form\u00e1k n\u00e9gy sz\u00e9natom k\u00f6z\u00f6tti kovalens k\u00f6t\u00e9st tartalmaznak, amelyek kovalensen kapcsol\u00f3dnak egy szil\u00edciumatomhoz, bonyolult h\u00e1l\u00f3zati szerkezetet alkotva.<\/p>\n
A moissanitot szintetikusan \u00e1ll\u00edtj\u00e1k el\u0151, \u00e9s a term\u00e9szetben csak ritk\u00e1n fordul el\u0151, b\u00e1r kis mennyis\u00e9gben el\u0151fordulhat moissanit \u00e9kszerk\u00e9nt. A moissanit alapvet\u0151 szerepet j\u00e1tszik az elektromos j\u00e1rm\u0171vekben, mivel a magas h\u0151m\u00e9rs\u00e9kletet elvisel\u0151 k\u00e9pess\u00e9ge lehet\u0151v\u00e9 teszi, hogy a j\u00e1rm\u0171vek energiatakar\u00e9kosabbak legyenek, mik\u00f6zben cs\u00f6kken a s\u00falyt, k\u00f6lts\u00e9get \u00e9s bonyolults\u00e1got n\u00f6vel\u0151 akt\u00edv h\u0171t\u0151rendszerek sz\u00e1ma.<\/p>\n
A szil\u00edcium-karbid ker\u00e1mi\u00e1k sokoldal\u00faan felhaszn\u00e1lhat\u00f3 nemoxid-ker\u00e1mi\u00e1k, amelyeket mechanikai \u00e9s termikus szil\u00e1rds\u00e1got egyar\u00e1nt ig\u00e9nyl\u0151 alkalmaz\u00e1sokban haszn\u00e1lnak, p\u00e9ld\u00e1ul kop\u00e1s\u00e1ll\u00f3 alkatr\u00e9szekben; h\u0151\u00e1ll\u00f3 t\u0171z\u00e1ll\u00f3 anyagokban; h\u0151t\u00e1gul\u00e1s szab\u00e1lyoz\u00e1s\u00e1ra szolg\u00e1l\u00f3 t\u0171z\u00e1ll\u00f3 anyagokban; \u00e9s magas h\u0151m\u00e9rs\u00e9kleten vagy fesz\u00fclts\u00e9gen m\u0171k\u00f6d\u0151 f\u00e9lvezet\u0151 elektronikai eszk\u00f6z\u00f6kben. A szil\u00edciumkarbid kem\u00e9nys\u00e9ge alkalmass\u00e1 teszi ezekre a felhaszn\u00e1l\u00e1si c\u00e9lokra, m\u00edg h\u0151vezet\u0151 k\u00e9pess\u00e9ge hat\u00e9kony h\u0151\u00e1ll\u00f3 anyagg\u00e1 teszi. Felhaszn\u00e1l\u00e1si ter\u00fcleteinek sz\u00e9les sk\u00e1l\u00e1ja t\u00falmutat a mechanikai alkalmaz\u00e1sokon; n\u00e9h\u00e1ny p\u00e9lda: csiszol\u00f3anyagok; kop\u00e1s\u00e1ll\u00f3 alkatr\u00e9szek; h\u0151\u00e1ll\u00f3 t\u0171z\u00e1ll\u00f3 anyagok; \u00e9s magas h\u0151m\u00e9rs\u00e9kleten, illetve fesz\u00fclts\u00e9gen m\u0171k\u00f6d\u0151 f\u00e9lvezet\u0151 elektronikai eszk\u00f6z\u00f6k.<\/p>\n
A krist\u00e1lyos szil\u00edciumkarbid egy szoros k\u00f6t\u00e9s\u0171, kovalens k\u00f6t\u00e9s\u0171 atomokb\u00f3l \u00e1ll\u00f3 szerkezetben k\u00e9pz\u0151dik, amelyek k\u00e9t els\u0151dleges koordin\u00e1ci\u00f3s tetra\u00e9dert alkotnak, amelyek n\u00e9gy szil\u00edcium- \u00e9s n\u00e9gy sz\u00e9natomb\u00f3l \u00e1llnak, ami hihetetlen kem\u00e9nys\u00e9get \u00e9s szil\u00e1rds\u00e1got k\u00f6lcs\u00f6n\u00f6z neki. Sajnos v\u00edzben vagy alkoholban nem old\u00f3dik, de ellen\u00e1ll a legt\u00f6bb szerves \u00e9s szervetlen savnak\/s\u00f3nak (kiv\u00e9telt k\u00e9peznek a fluorvizes sav \u00e9s a savas fluoridok).<\/p>\n
A szil\u00edcium-karbid f\u00e9lvezet\u0151k sz\u00e9les s\u00e1vh\u00e9zaggal b\u00fcszk\u00e9lkedhetnek, amely lehet\u0151v\u00e9 teszi, hogy az egyen\u00e9rt\u00e9k\u0171 szil\u00edcium (Si) f\u00e9lvezet\u0151kn\u00e9l sokkal kisebb \u00e9s hat\u00e9konyabb eszk\u00f6z\u00f6k k\u00e9sz\u00fcljenek, ami megnyitja a lehet\u0151s\u00e9get az elektromos j\u00e1rm\u0171vek teljes\u00edtm\u00e9nyelektronik\u00e1j\u00e1ban, valamint az ipari folyamatok digitaliz\u00e1l\u00e1si folyamatainak t\u00e1mogat\u00e1s\u00e1ra.<\/p>","protected":false},"excerpt":{"rendered":"
Silicon carbide has many applications and comes in the form of abrasives, ceramic powder and bulletproof armor. Carborundum (SiC), a […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","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":[3],"tags":[],"class_list":["post-38","post","type-post","status-publish","format-standard","hentry","category-sic-knowledge"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/siliconcarbideceramic.net\/hu\/wp-json\/wp\/v2\/posts\/38","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/siliconcarbideceramic.net\/hu\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/siliconcarbideceramic.net\/hu\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/hu\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/hu\/wp-json\/wp\/v2\/comments?post=38"}],"version-history":[{"count":1,"href":"https:\/\/siliconcarbideceramic.net\/hu\/wp-json\/wp\/v2\/posts\/38\/revisions"}],"predecessor-version":[{"id":39,"href":"https:\/\/siliconcarbideceramic.net\/hu\/wp-json\/wp\/v2\/posts\/38\/revisions\/39"}],"wp:attachment":[{"href":"https:\/\/siliconcarbideceramic.net\/hu\/wp-json\/wp\/v2\/media?parent=38"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/hu\/wp-json\/wp\/v2\/categories?post=38"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/hu\/wp-json\/wp\/v2\/tags?post=38"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}