![\"Silisyum](\"http:\/\/siliconcarbideceramic.net\/wp-content\/uploads\/2024\/03\/Silicon-Carbide-Properties.jpg\")
<\/p>","protected":false},"excerpt":{"rendered":"Silisyum Karb\u00fcr (SiC), Mohs \u00f6l\u00e7e\u011fine g\u00f6re 9 sertlik derecesine ve elmas\u0131nkine rakip estetik \u00e7ekicili\u011fe sahip son derece dayan\u0131kl\u0131 bir malzemedir.<\/p>\n
EAG Laboratuvarlar\u0131, y\u0131\u011f\u0131n ve uzamsal olarak \u00e7\u00f6z\u00fcmlenmi\u015f analitik teknikler kullanarak SiC'yi bu \u00f6zellikler a\u00e7\u0131s\u0131ndan analiz etme konusunda kapsaml\u0131 deneyime sahiptir. Hem elektrik yal\u0131tkan\u0131 hem de yar\u0131 iletken olarak kullan\u0131labilir.<\/p>\n
Silisyum karb\u00fcr d\u00fcnyan\u0131n en sert maddelerinden biridir, Mohs \u00f6l\u00e7e\u011finde dokuzuncu s\u0131rada yer al\u0131r ve sertlik a\u00e7\u0131s\u0131ndan elmastan sonra ikinci s\u0131radad\u0131r. Bor karb\u00fcr ve elmas silisyum karb\u00fcrden bile daha serttir - di\u011fer kullan\u0131m alanlar\u0131 aras\u0131nda kesici aletler, kur\u015fun ge\u00e7irmez yelekler, otomobil par\u00e7alar\u0131 ve astronomik teleskoplar i\u00e7in aynalar bulunmaktad\u0131r. Silisyum karb\u00fcr\u00fcn sert ve g\u00fc\u00e7l\u00fc y\u00fczeyi, kesme a\u015f\u0131nd\u0131r\u0131c\u0131lar\u0131 ve kesme aletleri, yap\u0131sal malzemeler (kur\u015fun ge\u00e7irmez yelekler), otomobil par\u00e7alar\u0131 ve teleskoplar taraf\u0131ndan kullan\u0131lan aynalar olarak kullan\u0131m i\u00e7in m\u00fckemmeldir!<\/p>\n
Termal \u015foka dayan\u0131kl\u0131 seramik, son derece sert, oksit i\u00e7ermeyen bir seramiktir. Mukavemeti, y\u00fcksek \u0131s\u0131l iletkenli\u011fi, d\u00fc\u015f\u00fck \u0131s\u0131l genle\u015fme oran\u0131 ve oksidasyona kar\u015f\u0131 m\u00fckemmel direnci sayesinde vazge\u00e7ilmez bir refrakter malzemedir.<\/p>\n
Silisyum karb\u00fcr (atom numaras\u0131 14) ve karbon (atom numaras\u0131 6), silisyum karb\u00fcr olarak bilinen inorganik bir bile\u015fik olu\u015fturur; d\u00f6rt karbon ve d\u00f6rt silisyum atomunun kovalent olarak birbirine ba\u011flanmas\u0131yla olu\u015fan iki birincil koordinasyon tetrahedras\u0131, \u00fcst\u00fcn mukavemet ve sertli\u011fe sahip son derece g\u00fc\u00e7l\u00fc ve sert bir yak\u0131n paketlenmi\u015f yap\u0131 olu\u015fturur; \u00e7oklu tipleri \u00e7oklu tipler olu\u015fturmak i\u00e7in bile istiflenebilir. Silisyum karb\u00fcr, elektronlar\u0131 y\u00f6r\u00fcnge durumlar\u0131ndan kurtarmak i\u00e7in silisyuma k\u0131yasla \u00fc\u00e7 kat daha az enerji gerektiren geni\u015f bant aral\u0131kl\u0131 yar\u0131 iletken \u00f6zellikler sa\u011flar.<\/p>\n
Silisyum karb\u00fcr\u00fcn en \u00f6nemli \u00f6zelli\u011fi korozyona kar\u015f\u0131 direncidir. Sadece akla gelebilecek en agresif asitlere (hidroklorik, s\u00fclf\u00fcrik ve hidroflorik), bazlara ve \u00e7\u00f6z\u00fcc\u00fclere ve ayr\u0131ca nitrik asit veya buhar gibi oksitleyici ortamlara kar\u015f\u0131 diren\u00e7li olmakla kalmaz, ayn\u0131 zamanda a\u015f\u0131r\u0131 s\u0131cakl\u0131klar veya elektrik alanlar\u0131ndan kaynaklanan hasarlara kar\u015f\u0131 m\u00fckemmel yal\u0131t\u0131m \u00f6zelliklerine sahiptir.<\/p>\n
Sinterlenmi\u015f silisyum karb\u00fcr, yo\u011fun yap\u0131s\u0131, sertli\u011fi, iletim band\u0131 kaymas\u0131 i\u00e7in daha d\u00fc\u015f\u00fck elektron enerjisi t\u00fcketimine izin veren geni\u015f bant aral\u0131\u011f\u0131 yar\u0131 iletken \u00f6zellikleri ve d\u00fc\u015f\u00fck termal genle\u015fme katsay\u0131s\u0131 nedeniyle m\u00fckemmel termal diren\u00e7 sunar.<\/p>\n
Korozyon direnci ayr\u0131ca sinterleme katk\u0131lar\u0131, tane s\u0131n\u0131r\u0131 fazlar\u0131 ve g\u00f6zeneklili\u011fin varl\u0131\u011f\u0131yla da art\u0131r\u0131labilir; bunlar\u0131n t\u00fcr\u00fc ve miktar\u0131 korozyonun di\u011fer ortamlarla ne kadar h\u0131zl\u0131 reaksiyona girdi\u011fine ba\u011fl\u0131d\u0131r.<\/p>\n
Silisyum karb\u00fcr oksidasyon durumlar\u0131, karbonun pasifle\u015ftirici bir ajan olarak hareket etmesiyle kontrol edilebilir, korozyon oranlar\u0131n\u0131 azaltmaya ve hizmet i\u00e7i oksitleyici ortamlara maruz kald\u0131\u011f\u0131nda \u00fcr\u00fcn \u00f6mr\u00fcn\u00fc uzatmaya yard\u0131mc\u0131 olur.<\/p>\n
Silisyum karb\u00fcr, al\u00fcmina (Mohs \u00f6l\u00e7e\u011finde 9) ile elmas (10) aras\u0131nda bir yerde bulunan son derece sert bir malzemedir. Sertlik ve termal kararl\u0131l\u0131k kombinasyonu nedeniyle silisyum karb\u00fcr, refrakterlerin yan\u0131 s\u0131ra a\u015f\u0131nmaya dayan\u0131kl\u0131 malzemelere dayanacak \u015fekilde tasarlanm\u0131\u015f par\u00e7alardaki zorlu mekanik uygulamalar i\u00e7in m\u00fckemmel bir malzeme se\u00e7imi yapar.<\/p>\n
Ayr\u0131ca, termal \u015foka kar\u015f\u0131 m\u00fckemmel direnci ve d\u00fc\u015f\u00fck termal genle\u015fme oran\u0131 nedeniyle silikon kau\u00e7uk, y\u00fcksek s\u0131cakl\u0131kl\u0131 ortamlarda ve boru sistemlerinde kullan\u0131lan bile\u015fenlerde kullan\u0131m i\u00e7in \u00e7ok uygundur.<\/p>\n
Silisyum Karb\u00fcr, elektronik \u00f6zelliklerini de\u011fi\u015ftirmek i\u00e7in \u00e7e\u015fitli elementlerle katk\u0131lanabilir. Azot veya fosfor ile katk\u0131lanmas\u0131 onu n tipi bir yar\u0131 iletkene d\u00f6n\u00fc\u015ft\u00fcr\u00fcrken berilyum, bor veya al\u00fcminyum ile katk\u0131lanmas\u0131 onu p tipi bir yar\u0131 iletkene d\u00f6n\u00fc\u015ft\u00fcrecektir.<\/p>\n
Silisyum karb\u00fcr\u00fcn valans ve iletim bantlar\u0131 aras\u0131ndaki bant aral\u0131\u011f\u0131 fark\u0131, elektronlar\u0131n iki bant aras\u0131nda ge\u00e7i\u015f yapmas\u0131n\u0131 zorla\u015ft\u0131rarak k\u0131r\u0131lgan hale gelmeden ve par\u00e7alanmadan \u00f6nce silikona k\u0131yasla 10 kat daha fazla elektrik alan\u0131na dayanmas\u0131n\u0131 sa\u011flar.<\/p>\n
Silisyum karb\u00fcr, katk\u0131lama yoluyla uyarlanabilen bir dizi elektriksel \u00f6zellik sunar. Katk\u0131lama, elektri\u011fi ileten serbest elektronlar ve delikler olu\u015fturmak i\u00e7in kristal yap\u0131s\u0131na safs\u0131zl\u0131klar\u0131n eklenmesini i\u00e7erir ve SiC'ye silikondan on kat daha fazla iletkenlik de\u011ferleri verir.<\/p>\n
Silisyum karb\u00fcr\u00fcn elektriksel \u00f6zellikleri b\u00fcy\u00fck \u00f6l\u00e7\u00fcde bant aral\u0131\u011f\u0131 taraf\u0131ndan belirlenir. Bir atomun valans band\u0131 ve iletim band\u0131n\u0131n enerji seviyeleri aras\u0131ndaki bu fark, ne kadar elektrik alan\u0131na dayanabilece\u011fini belirler; silisyum karb\u00fcr, silikon muadilinden daha geni\u015f bir bant aral\u0131\u011f\u0131na sahiptir ve neredeyse iki kat daha fazla voltaj\u0131 tolere etmesine izin verir.<\/p>\n
Y\u00fcksek voltaj direnci, neodimyumu elektrikli ara\u00e7 g\u00fc\u00e7 cihazlar\u0131nda kullan\u0131m i\u00e7in ideal hale getirerek daha uzun s\u00fcr\u00fc\u015f mesafeleri ve daha y\u00fcksek pil y\u00f6netimi verimlili\u011fi sa\u011flar. Ayr\u0131ca, galyum nitr\u00fcr gibi alternatiflere k\u0131yasla daha hafif olmas\u0131, g\u00fc\u00e7 elektroni\u011fi \u00fcreticilerinin boyut ve a\u011f\u0131rl\u0131\u011f\u0131 \u00f6nemli \u00f6l\u00e7\u00fcde azaltmas\u0131na ve minimum termal genle\u015fme katsay\u0131s\u0131 ile y\u00fcksek s\u0131cakl\u0131klara dayanmas\u0131na olanak tan\u0131r.<\/p>\n
<\/p>","protected":false},"excerpt":{"rendered":"
Silicon Carbide (SiC) is an extremely durable material with an extremely hard Mohs scale hardness rating of 9 and an […]<\/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":"default","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":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","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-50","post","type-post","status-publish","format-standard","hentry","category-sic-knowledge"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/siliconcarbideceramic.net\/tr\/wp-json\/wp\/v2\/posts\/50","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/siliconcarbideceramic.net\/tr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/siliconcarbideceramic.net\/tr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/tr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/tr\/wp-json\/wp\/v2\/comments?post=50"}],"version-history":[{"count":3,"href":"https:\/\/siliconcarbideceramic.net\/tr\/wp-json\/wp\/v2\/posts\/50\/revisions"}],"predecessor-version":[{"id":188,"href":"https:\/\/siliconcarbideceramic.net\/tr\/wp-json\/wp\/v2\/posts\/50\/revisions\/188"}],"wp:attachment":[{"href":"https:\/\/siliconcarbideceramic.net\/tr\/wp-json\/wp\/v2\/media?parent=50"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/tr\/wp-json\/wp\/v2\/categories?post=50"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/tr\/wp-json\/wp\/v2\/tags?post=50"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}