Karborundum\/karbornm\/ olarak da adland\u0131r\u0131lan silisyum karb\u00fcr, 19. y\u00fczy\u0131l\u0131n sonlar\u0131ndan beri end\u00fcstriyel bir malzeme olarak kullan\u0131lan, silikon ve karbondan olu\u015fan son derece sert ve dayan\u0131kl\u0131 kristal bir bile\u015fiktir.<\/p>\n
Do\u011fal olarak olu\u015fan mozanit meteoritlerde ve kimberlit yataklar\u0131nda bulunabilse de, \u00e7o\u011fu SiC art\u0131k karbonun erimi\u015f silikon i\u00e7inde \u00e7\u00f6z\u00fclmesi veya kimyasal buhar biriktirme i\u015flemleri yoluyla sentetik olarak \u00fcretilmektedir.<\/p>\n
Silisyum karb\u00fcr\u00fcn \u00fcst\u00fcn termal iletkenli\u011fi, y\u00fcksek \u00e7al\u0131\u015fma s\u0131cakl\u0131klar\u0131na dayanmas\u0131n\u0131 sa\u011flar. Bu \u00f6zellik, \u0131s\u0131n\u0131n h\u0131zl\u0131 ve verimli bir \u015fekilde da\u011f\u0131t\u0131lmas\u0131na yard\u0131mc\u0131 olarak zorlu ko\u015fullar alt\u0131nda erimeye veya k\u0131r\u0131lmaya kar\u015f\u0131 korur.<\/p>\n
Ekipman\u0131 a\u015f\u0131nma ve y\u0131pranmaya kar\u015f\u0131 koruyarak kullan\u0131m \u00f6mr\u00fcn\u00fcn uzamas\u0131na yard\u0131mc\u0131 olur. D\u00fc\u015f\u00fck \u0131s\u0131l genle\u015fme katsay\u0131s\u0131 ve \u00fcst\u00fcn sertli\u011fi sayesinde s\u00fcrt\u00fcnme ve a\u015f\u0131nma gibi mekanik gerilimlere kar\u015f\u0131 da diren\u00e7lidir.<\/p>\n
Siyah silisyum karb\u00fcr tozu, ola\u011fan\u00fcst\u00fc kesme h\u0131zlar\u0131 ve y\u00fczey finisajlar\u0131 sa\u011flayan s\u0131k\u0131 kontroll\u00fc partik\u00fcl boyutlar\u0131na sahiptir, bu da onu vitrifiye ve resinoid ta\u015flama ta\u015flar\u0131, kumlama tanesi \/ toz bile\u015fikleri, bile\u015fikler, lepleme parlatma kaymaz ve tel testere silikon ve kuvars gibi bir dizi uygulama i\u00e7in uygun hale getirir.<\/p>\n
Geleneksel bir kolaj bask\u0131 tekni\u011fi olan karborundum bask\u0131resim, karborundum kumunun bir al\u00fcminyum plakaya uyguland\u0131\u011f\u0131 ve m\u00fcrekkeplendi\u011fi, daha sonra dayan\u0131kl\u0131l\u0131\u011f\u0131n\u0131 sergileyen organik dokulara sahip ka\u011f\u0131t \u00fczerine bask\u0131lar \u00fcretmek i\u00e7in haddeleme yata\u011f\u0131 presinden ge\u00e7irildi\u011fi bir tekniktir.<\/p>\n
SiC son derece sert bir malzemedir (Mohs \u00f6l\u00e7e\u011finde 9). Ayr\u0131ca, a\u015f\u0131nma direnci onu spor arabalardaki seramik fren diskleri ve kur\u015fun ge\u00e7irmez yeleklerin yan\u0131 s\u0131ra pompa mili contalar\u0131n\u0131 i\u00e7eren uygulamalar i\u00e7in uygun hale getirir. Ayr\u0131ca, bu malzeme \u00e7elik gibi di\u011fer sert malzemelerle temas etti\u011finde bozulmadan kal\u0131rken son derece y\u00fcksek s\u0131cakl\u0131klara dayanabilir.<\/p>\n
Yakla\u015f\u0131k 1400 \u00b0 C'ye kadar ola\u011fan\u00fcst\u00fc oksidasyon direnci g\u00f6sterir ve suda, alkolde ve hidroflorik asit d\u0131\u015f\u0131ndaki asitlerde \u00e7\u00f6z\u00fcnmez.<\/p>\n
Ye\u015fil SIC, saf silika kumu ve petrol kokundan \u00fcretilebilir, \u00e7e\u015fitli \u015fekillendirme y\u00f6ntemleri kullan\u0131larak i\u015flenebilir ve hem ba\u011fl\u0131 hem de reaksiyon ba\u011fl\u0131 \u00fcr\u00fcnler \u00fcretmek i\u00e7in elektrikli bir i\u00e7 diren\u00e7 f\u0131r\u0131n\u0131nda y\u00fcksek s\u0131cakl\u0131klarda sinterlenebilir. Saint-Gobain Performance Ceramics & Refractories bu \u00fcr\u00fcn\u00fc a\u015f\u0131nd\u0131r\u0131c\u0131, metalurjik, \u00f6zel refrakter malzemelerin yan\u0131 s\u0131ra metal matrisli kompozitler ve f\u0131r\u0131n mobilyalar\u0131 \u00fcretiminde kullanmaktad\u0131r - kompozit z\u0131rh sistemleri \u00fcretimini de unutmamak gerekir!<\/p>\n
Silisyum karb\u00fcr, fabrikalardaki ta\u015flama ta\u015flar\u0131 gibi a\u015f\u0131r\u0131 kimyasal ko\u015fullara ve ortamlara dayanarak dayan\u0131kl\u0131l\u0131\u011f\u0131n\u0131 kan\u0131tlam\u0131\u015ft\u0131r. Ayr\u0131ca, end\u00fcstriyel kesme ve delme i\u015flemlerinin yan\u0131 s\u0131ra ta\u015flama ve parlatma i\u00e7in de kullan\u0131l\u0131r; ek olarak, y\u00fcksek a\u015f\u0131nma direncine sahiptir ve bu da onu metalurjik uygulamalarda kullan\u0131ma uygun hale getirir.<\/p>\n
19. y\u00fczy\u0131l\u0131n sonlar\u0131ndan bu yana silikon kau\u00e7uk, a\u015f\u0131nd\u0131r\u0131c\u0131lar ve ta\u015flama aletlerinin yan\u0131 s\u0131ra refrakter astarlar ve f\u0131r\u0131n silindirleri gibi uygulamalar i\u00e7in kullan\u0131lmaktad\u0131r. Ola\u011fan\u00fcst\u00fc s\u0131cakl\u0131k direnci ve termal \u015fok direnci \u00f6zellikleri nedeniyle silikon kau\u00e7uk, havac\u0131l\u0131k ve uzay uygulamalar\u0131 i\u00e7in m\u00fckemmel bir malzeme se\u00e7imi yapar.<\/p>\n
Silisyum karb\u00fcr tozu, silis kumu ve k\u00f6m\u00fcr bazl\u0131 kok k\u00f6m\u00fcr\u00fcn\u00fcn 2500 derece s\u0131cakl\u0131ktaki bir elektrik diren\u00e7 f\u0131r\u0131n\u0131nda eritilmesi, ard\u0131ndan \u00f6\u011f\u00fct\u00fclmesi veya kat\u0131 nesneler haline getirilmesi yoluyla \u00fcretilebilir. Daha b\u00fcy\u00fck tek kristaller, yar\u0131 iletken gofretler i\u00e7in olanlara benzer i\u015flemler kullan\u0131larak 3500 derece s\u0131cakl\u0131kta a\u015f\u0131r\u0131 vakum alt\u0131nda saf silikon ve karbon buhar\u0131ndan b\u00fcy\u00fct\u00fclebilir. Polimorflar veya \u00e7e\u015fitli kristal yap\u0131lara sahip yap\u0131lar mevcuttur ve atomik yap\u0131lar\u0131na ba\u011fl\u0131 olarak alfa veya beta olarak s\u0131n\u0131fland\u0131r\u0131labilir; alfa tipik olarak alt\u0131gen (Wurtzite) yap\u0131ya sahiptir.<\/p>\n
Oksit olmayan seramik bir malzeme olan silisyum karb\u00fcr, y\u00fcksek s\u0131cakl\u0131klara ve a\u015f\u0131nmaya dayanma \u00f6zelli\u011fine sahiptir. Bu nedenle, ta\u015flama, honlama ve kumlama i\u015flemlerinde uzun s\u00fcredir dayan\u0131kl\u0131 bir par\u00e7a olarak kullan\u0131l\u0131rken, havac\u0131l\u0131k ve otomotiv end\u00fcstrilerinde \u00e7e\u015fitli malzemeleri parlatmak i\u00e7in bir a\u015f\u0131nd\u0131r\u0131c\u0131 olarak da s\u0131kl\u0131kla kullan\u0131lmaktad\u0131r.<\/p>\n
Al\u00fcminyum asitlerle ve 1600 dereceye kadar olan s\u0131cakl\u0131klarla reaksiyona girmez. Tetrahedral kristal yap\u0131s\u0131 nedeniyle, belirli ko\u015fullar alt\u0131nda oksidasyona kar\u015f\u0131 koyabilir - ancak y\u00fcksek oksijen konsantrasyonlar\u0131na uzun s\u00fcre maruz kal\u0131rsa h\u0131zla oksitlenebilir.<\/p>\n
Yeniden kristalle\u015ftirme, s\u0131cak presleme, mikrodalga sinterleme, bas\u0131n\u00e7s\u0131z sinterleme ve reaksiyon sinterleme, \u00e7e\u015fitli \u015fekil ve boyutlarda seramik olu\u015fturmak i\u00e7in mevcut \u00e7e\u015fitli y\u00f6ntemler aras\u0131ndad\u0131r. Seramik, termal a\u00e7\u0131dan zorlu refrakterlerin ve kur\u015fun ge\u00e7irmez z\u0131rh uygulamalar\u0131nda bile\u015fen olarak kullan\u0131lan seramiklerin bir par\u00e7as\u0131 olarak yayg\u0131n bir \u015fekilde kullan\u0131lmaktad\u0131r; ayr\u0131ca sertli\u011fi ve mukavemeti onu astronomik teleskop aynalar\u0131 i\u00e7in de uygun hale getirmektedir.<\/p>","protected":false},"excerpt":{"rendered":"
Silicon carbide, also referred to as carborundum\/karbornm\/ is an exceptionally hard and durable crystalline compound of silicon and carbon that […]<\/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":[5],"tags":[],"class_list":["post-40","post","type-post","status-publish","format-standard","hentry","category-product-related"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/siliconcarbideceramic.net\/tr\/wp-json\/wp\/v2\/posts\/40","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=40"}],"version-history":[{"count":1,"href":"https:\/\/siliconcarbideceramic.net\/tr\/wp-json\/wp\/v2\/posts\/40\/revisions"}],"predecessor-version":[{"id":41,"href":"https:\/\/siliconcarbideceramic.net\/tr\/wp-json\/wp\/v2\/posts\/40\/revisions\/41"}],"wp:attachment":[{"href":"https:\/\/siliconcarbideceramic.net\/tr\/wp-json\/wp\/v2\/media?parent=40"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/tr\/wp-json\/wp\/v2\/categories?post=40"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/tr\/wp-json\/wp\/v2\/tags?post=40"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}