R\u00e4nikarbiidil on palju rakendusi ja seda kasutatakse abrasiivide, keraamilise pulbri ja kuulikindla soomuse kujul.<\/p>\n
Karborund (SiC), r\u00e4ni ja s\u00fcsiniku kristalliline \u00fchend, on \u00fcks k\u00f5vemaid teadaolevaid aineid, millel on unikaalsed omadused, mis muudavad selle kasulikuks erinevates t\u00f6\u00f6stusharudes.<\/p>\n
R\u00e4nikarbiid on k\u00f5va ja rabe, mist\u00f5ttu on see t\u00f5hus abrasiivne materjal. Tootjad kasutavad seda toodete, n\u00e4iteks liivapaberi tootmisel; seda materjali on saadaval erineva terasuurusega, alates j\u00e4medast kuni v\u00e4ga peene terasuuruseni lihvimist\u00f6\u00f6deks, kusjuures j\u00e4medamaid terasid kasutatakse suurte varakoguste eemaldamiseks esialgsetes lihvimist\u00f6\u00f6des, samas kui peenemad terad lihvivad t\u00f6\u00f6deldava detaili pindu, et saada siledaid viimistluspindu.<\/p>\n
Abrasiivset r\u00e4nikarbiidi kasutatakse suure vastupidavusega toodetes, n\u00e4iteks autode pidurites ja keraamilistes plaatides, mida kasutatakse kuulikindlates vestides. Lisaks v\u00f5ib seda materjali leida ka komposiitmaterjalides, n\u00e4iteks s\u00fcsinikkiududega tugevdatud r\u00e4nikarbiidis (CFRC).<\/p>\n
R\u00e4nikarbiid on asendamatu tooraine tulekindlate materjalide tootmisel. T\u00e4nu stabiilsetele keemilistele omadustele, k\u00f5rgele soojusjuhtivusele, v\u00e4ikesele soojuspaisumistegurile ja suurep\u00e4rasele kulumiskindlusele on see ideaalne materjal k\u00f5rge temperatuurikindlusega abrasiivmaterjalide, n\u00e4iteks lintide, liivapaberi, lihvketaste ja \u00f5likivi t\u00f6\u00f6riistade ning monokristallilise r\u00e4ni\/pol\u00fckristallilise r\u00e4ni t\u00f6\u00f6pinkide valmistamiseks.<\/p>\n
Metall on v\u00e4ga k\u00f5va ja rabe, kuid samas suure termilise ja mehaanilise stabiilsusega. Koosneb r\u00e4ni aatomitest, mida \u00fcmbritsevad s\u00fcsiniku- ja hapniku aatomid, mist\u00f5ttu on metall vastupidav kuumusele ja mehaanilisele pingele ning tal on muljetavaldav sulamistemperatuur.<\/p>\n
Puhas r\u00e4nikarbiid on v\u00e4rvitu; t\u00f6\u00f6stuslike kvaliteediklasside v\u00e4rvus v\u00f5ib varieeruda pruunist kuni mustani, mis tuleneb raua, alumiiniumi, l\u00e4mmastiku v\u00f5i vaba s\u00fcsiniku sisaldusest. On olemas doteerimismeetodid, mis loovad erinevaid pooljuhte: n\u00e4iteks n-t\u00fc\u00fcpi r\u00e4nikarbiidi v\u00f5ib doteerida l\u00e4mmastiku v\u00f5i fosforiga, samas kui p-t\u00fc\u00fcpi versioone saab doteerida alumiiniumi, boori v\u00f5i galliumiga.<\/p>\n
R\u00e4nikarbiid on \u00fcks k\u00f5vemaid materjale Maal. Seet\u00f5ttu sobib see ideaalselt kuulikindlate vestide valmistamiseks, mida kannavad politseinikud ja s\u00f5jav\u00e4elased, ning t\u00e4nu oma soojusomadustele on see kuumakindel.<\/p>\n
Sellised keraamilised materjalid on teadaolevalt tugevad. Lisaks sellele on keraamilised materjalid suurep\u00e4rased soojus- ja elektrijuhtmed, mis muudab need ideaalseks elektrooniliste rakenduste, n\u00e4iteks v\u00f5imsustransistoride jaoks. Veel \u00fcks eelis on korrosioonikindlus.<\/p>\n
Puhta r\u00e4nikarbiidil on mitmekihiline struktuur ja seda on mitmesuguseid pol\u00fct\u00fc\u00fcpe v\u00f5i variante, mida eristab nende virnastamise j\u00e4rjestus, mis annab igale t\u00fc\u00fcbile unikaalsed f\u00fc\u00fcsikalised omadused - n\u00e4iteks m\u00f5ned vormid sisaldavad kovalentseid sidemeid nelja s\u00fcsinikuaatomi vahel, mis on kovalentselt seotud \u00fche r\u00e4ni aatomiga, moodustades keerulise v\u00f5rgustiku struktuuri.<\/p>\n
Moissaniiti toodetakse s\u00fcnteetiliselt ja seda leidub looduses v\u00e4ga harva, kuigi v\u00e4ikestes kogustes v\u00f5ib esineda moissaniidist juveele. Moissaniidil on oluline roll elektris\u00f5idukites, sest tema v\u00f5ime taluda k\u00f5rgeid temperatuure v\u00f5imaldab s\u00f5idukitel saada energiat\u00f5husamaks, v\u00e4hendades samal ajal aktiivseid jahutuss\u00fcsteeme, mis lisavad kaalu, kulusid ja keerukust.<\/p>\n
R\u00e4nikarbiidkeraamika on mitmek\u00fclgne mittekoksiidkeraamika, mida kasutatakse nii mehaanilist kui ka termilist tugevust n\u00f5udvates rakendustes, n\u00e4iteks kulumiskindlates osades, kuumakindlates tulekindlates materjalides, termilise paisumise kontrollimiseks ning k\u00f5rgetel temperatuuridel v\u00f5i pingetel t\u00f6\u00f6tavates pooljuhtelektroonikaseadmetes. R\u00e4nikarbiidi k\u00f5vadus muudab selle sobivaks nendeks kasutusaladeks, samas kui selle soojusjuhtivus teeb sellest t\u00f5husa kuumuskindla materjali. Selle lai kasutusvaldkond ulatub kaugemale kui ainult mehaanilised rakendused; m\u00f5ned n\u00e4ited on: abrasiivsed materjalid, kulumiskindlad osad, tulekindlad materjalid soojuskindluse tagamiseks ja vastavalt k\u00f5rgetel temperatuuridel v\u00f5i pingetel t\u00f6\u00f6tavad pooljuhtelektroonikaseadmed.<\/p>\n
Kristalliline r\u00e4nikarbiid moodustab tihedalt paigutatud struktuuri, mis koosneb kovalentselt seotud aatomitest, mis moodustavad kaks primaarset koordinatsioonitetraeedrit, mis koosnevad neljast r\u00e4ni ja neljast s\u00fcsiniku aatomist, andes sellele uskumatu k\u00f5vaduse ja tugevuse. Kahjuks on see vees v\u00f5i alkoholis lahustumatu, kuid vastupidav enamiku orgaaniliste ja anorgaaniliste hapete\/soolade suhtes (erandiks on vesinikfluoriidhape ja happelised fluoriidid).<\/p>\n
R\u00e4nikarbiidist pooljuhtidel on lai ribal\u00f5he, mis v\u00f5imaldab luua palju v\u00e4iksemaid ja t\u00f5husamaid seadmeid kui samav\u00e4\u00e4rsed r\u00e4nist (Si), mis avab v\u00f5imaluse nende kasutamiseks elektris\u00f5idukite j\u00f5uelektroonikas ning toetab digiteerimisprotsesse t\u00f6\u00f6stusprotsessides.<\/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\/et\/wp-json\/wp\/v2\/posts\/38","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/siliconcarbideceramic.net\/et\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/siliconcarbideceramic.net\/et\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/et\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/et\/wp-json\/wp\/v2\/comments?post=38"}],"version-history":[{"count":1,"href":"https:\/\/siliconcarbideceramic.net\/et\/wp-json\/wp\/v2\/posts\/38\/revisions"}],"predecessor-version":[{"id":39,"href":"https:\/\/siliconcarbideceramic.net\/et\/wp-json\/wp\/v2\/posts\/38\/revisions\/39"}],"wp:attachment":[{"href":"https:\/\/siliconcarbideceramic.net\/et\/wp-json\/wp\/v2\/media?parent=38"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/et\/wp-json\/wp\/v2\/categories?post=38"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/et\/wp-json\/wp\/v2\/tags?post=38"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}