Silikon karbid, daha \u00e7ox karborundum kimi tan\u0131nan, almaz kimi s\u0259rtdir v\u0259 a\u015f\u0131nmaya qar\u015f\u0131 y\u00fcks\u0259k m\u00fcqavim\u0259t\u0259 malikdir. Bundan \u0259lav\u0259, onun keramika x\u00fcsusiyy\u0259tl\u0259ri onu y\u00fcks\u0259k temperaturlu v\u0259 y\u00fcks\u0259k g\u0259rginlikli m\u00fchitl\u0259r \u00fc\u00e7\u00fcn uy\u011fun edir.<\/p>\n
Lely prosesi toz \u015f\u0259klind\u0259 m\u0259hsul verir ki, bu toz moissanit da\u015flar\u0131na k\u0259sil\u0259r\u0259k z\u0259rg\u0259rlik da\u015f\u0131 kimi istifad\u0259 oluna bil\u0259r, eyni zamanda istehsal\u00e7\u0131lar onu a\u015f\u0131nd\u0131r\u0131c\u0131 \u0259\u015fyalar\u0131n v\u0259 s\u0259rtlik t\u0259l\u0259b ed\u0259n m\u0259hsullar\u0131n haz\u0131rlanmas\u0131nda da t\u0259tbiq edirl\u0259r.<\/p>\n
Silikon karbid (SiC), h\u0259m\u00e7inin karborundum \/krbnm\/ kimi tan\u0131nan, silikon v\u0259 karbonun son d\u0259r\u0259c\u0259 s\u0259rt birl\u0259\u015fm\u0259sidir. O, t\u0259bii olaraq moissanit mineral\u0131 \u015f\u0259klind\u0259 yaran\u0131r v\u0259 19-cu \u0259srin sonlar\u0131ndan b\u0259ri a\u015f\u0131nd\u0131r\u0131c\u0131 kimi k\u00fctl\u0259vi istehsal olunur. SiC-ni s\u0259rt keramika hal\u0131na g\u0259tirm\u0259k v\u0259 ya onu azot, fosfor, berilium v\u0259 ya al\u00fcminiumla dopinq etm\u0259k n- v\u0259 ya p-tip yar\u0131mke\u00e7iricil\u0259r \u0259m\u0259l\u0259 g\u0259tir\u0259 bil\u0259r.<\/p>\n
S\u0259naye SiC ad\u0259t\u0259n a\u00e7\u0131q sobada silika qumun neft koksu kimi karbon m\u0259nb\u0259l\u0259ri il\u0259 y\u00fcks\u0259k temperaturda q\u0131zd\u0131r\u0131lmas\u0131 il\u0259 h\u0259yata ke\u00e7iril\u0259n Acheson prosesi vasit\u0259sil\u0259 istehsal olunur v\u0259 onlar\u0131n safl\u0131q s\u0259viyy\u0259sind\u0259n as\u0131l\u0131 olaraq ya\u015f\u0131l v\u0259 ya qara r\u0259ngli d\u0259n\u0259cikl\u0259r \u0259ld\u0259 edilir.<\/p>\n
SiC \u00fcst\u00fcn istilik ke\u00e7iriciliyi v\u0259 korroziyaya davaml\u0131l\u0131\u011f\u0131 il\u0259 tan\u0131n\u0131r. A\u015fa\u011f\u0131 istilik gen\u0259lm\u0259 \u0259msal\u0131, y\u00fcks\u0259k m\u00f6hk\u0259mlik\/s\u0259rtlik nisb\u0259ti, kimy\u0259vi sabitlik v\u0259 asan emal oluna bilm\u0259si il\u0259 o, y\u00fcks\u0259k sinif refrakterl\u0259rd\u0259, abrazivl\u0259rd\u0259 v\u0259 keramikalarda [16] kimi bir \u00e7ox s\u0259naye t\u0259tbiql\u0259rind\u0259 \u0259sas xammal kimi xidm\u0259t edir.<\/p>\n
Silikon karbid (SiC) b\u00fct\u00fcn temperaturlarda kimy\u0259vi inertlik, termal \u015fok m\u00fcqavim\u0259ti v\u0259 y\u00fcks\u0259k sinterl\u0259nm\u0259 qabiliyy\u0259ti kimi unikal x\u00fcsusiyy\u0259tl\u0259r\u0259 malik texniki keramika material\u0131d\u0131r. SiC soba l\u0259vazimatlar\u0131n\u0131n v\u0259 maye da\u015f\u0131ma avadanl\u0131qlar\u0131n\u0131n, h\u0259m\u00e7inin rulmanlar\u0131n v\u0259 a\u015f\u0131nmaya davaml\u0131 hiss\u0259l\u0259rin istehsal\u0131nda daxil olmaqla m\u00fcxt\u0259lif texniki keramika t\u0259tbiql\u0259rind\u0259 istifad\u0259 olunur. SiC-nin \u0259lav\u0259 t\u0259tbiql\u0259ri dizel hiss\u0259cik filtrl\u0259ri v\u0259 ballistik m\u00fcdafi\u0259ni \u0259hat\u0259 edir. Washington Mills ANSI, FEPA v\u0259 JIS standartlar\u0131na cavab ver\u0259n xammal istehsal ed\u0259 bil\u0259n q\u0131rma, \u00fcy\u00fctm\u0259 v\u0259 t\u0259snifl\u0259\u015fdirm\u0259 avadanl\u0131qlar\u0131 t\u0259klif edir.<\/p>\n
SiC tozlar\u0131n\u0131n d\u0259n\u0259 \u00f6l\u00e7\u00fcs\u00fc ilkin v\u0259ziyy\u0259tind\u0259n v\u0259 karbon m\u0259nb\u0259yind\u0259n as\u0131l\u0131 olaraq d\u0259yi\u015f\u0259 bil\u0259r. SiC sintezi \u00fc\u00e7\u00fcn populyar haz\u0131rl\u0131q prosesi karbon-termal reduksiya \u00fcsuludur; bu, 200 mech-d\u0259n az bir mol SiO2 v\u0259 1,5\u20133 mol karbon m\u0259nb\u0259yi qar\u0131\u015f\u0131\u011f\u0131n\u0131 reaksiya etdir\u0259r\u0259k, tur\u015fu il\u0259 yuyub, isidib v\u0259 al\u0131nan m\u0259hlulu reaksiya etdir\u0259r\u0259k \u015f\u00fc\u015f\u0259 karbonun \u0259m\u0259l\u0259 g\u0259lm\u0259sinin qar\u015f\u0131s\u0131n\u0131 al\u0131r.<\/p>\n
XRD k\u0259miyy\u0259t t\u0259hlili il\u0259 \u0259ld\u0259 olunan SiC tozlar\u0131 daha sonra hiss\u0259cik formas\u0131, granulometrik t\u0259rkibi v\u0259 spesifik s\u0259th t\u0259hlili il\u0259 ara\u015fd\u0131r\u0131l\u0131r. \u018fh\u0259miyy\u0259tli x\u00fcsusiyy\u0259tl\u0259r\u0259 hiss\u0259cik formas\u0131, granulometrik t\u0259rkibi v\u0259 spesifik s\u0259th daxildir. SiC hiss\u0259cikl\u0259ri ad\u0259t\u0259n s\u0259rh\u0259dl\u0259rind\u0259 dislokasiya \u015f\u0259b\u0259k\u0259l\u0259ri il\u0259 xarakteriz\u0259 olunan q\u00fcsurlu alt strukturlara malik d\u00fcz, q\u0131r\u0131q-q\u0131r\u0131q strukturlar n\u00fcmayi\u015f etdirir \u2013 bu, sinterl\u0259\u015fm\u0259 prosesl\u0259rin\u0259 m\u0259nfi t\u0259sir g\u00f6st\u0259r\u0259 bil\u0259c\u0259k arzuolunmaz bir x\u00fcsusiyy\u0259tdir.<\/p>\n
Silikon karbid m\u00fcxt\u0259lif s\u0259naye sah\u0259l\u0259rind\u0259 t\u0259tbiqin\u0259 imkan ver\u0259n bir \u00e7ox unikal x\u00fcsusiyy\u0259tl\u0259r\u0259 malikdir. X\u00fcsusil\u0259, onun Mohs s\u0259rtlik d\u0259r\u0259c\u0259si 9-dur v\u0259 bu, onu son d\u0259r\u0259c\u0259 s\u0259rt edir. Bundan \u0259lav\u0259, bu material kimy\u0259vi c\u0259h\u0259td\u0259n inertdir, y\u00fcks\u0259k a\u015f\u0131nma m\u00fcqavim\u0259ti v\u0259 y\u00fcks\u0259k temperaturlara q\u0259d\u0259r istilik m\u00fcqavim\u0259ti t\u0259klif edir, h\u0259m\u00e7inin yax\u015f\u0131 dart\u0131lma m\u00f6hk\u0259mliyin\u0259 v\u0259 a\u015fa\u011f\u0131 istilik gen\u0259lm\u0259 \u0259msal\u0131na malikdir \u2013 b\u00fct\u00fcn bu x\u00fcsusiyy\u0259tl\u0259r silikon karbidin bir \u00e7ox s\u0259naye t\u0259tbiql\u0259ri \u00fc\u00e7\u00fcn uy\u011fun olmas\u0131n\u0131 t\u0259min edir.<\/p>\n
Silikon karbidinin istehsal prosesl\u0259ri onun x\u00fcsusiyy\u0259tl\u0259rin\u0259 v\u0259 t\u0259tbiql\u0259rin\u0259 b\u00f6y\u00fck t\u0259sir g\u00f6st\u0259rir. Edward Goodrich Acheson Acheson prosesini inki\u015faf etdirmi\u015fdir; bu proses kvarts qumu, neft koksu v\u0259 taxta q\u0131r\u0131nt\u0131lar\u0131ndan ibar\u0259t qar\u0131\u015f\u0131\u011f\u0131 kimy\u0259vi reaksiyalar ba\u015f verm\u0259si \u00fc\u00e7\u00fcn son d\u0259r\u0259c\u0259 y\u00fcks\u0259k temperaturda q\u0131zd\u0131rma\u011f\u0131 \u0259hat\u0259 edir. Bu reaksiyalar silikon karbid kristallar\u0131n\u0131n \u0259m\u0259l\u0259 g\u0259lm\u0259sin\u0259 s\u0259b\u0259b olur \u2013 sonra bu kristallar toz \u015f\u0259klind\u0259 \u00fcy\u00fcd\u00fcl\u0259 v\u0259 ya sat\u0131\u015f \u00fc\u00e7\u00fcn ingotlara t\u00f6k\u00fcl\u0259 bil\u0259r.<\/p>\n
Bu a\u015f\u0131nd\u0131r\u0131c\u0131 toz ad\u0259t\u0259n aerokosmik v\u0259 avtomobil s\u0259nayesind\u0259 hiss\u0259l\u0259ri honlamaq v\u0259 laklamaq \u00fc\u00e7\u00fcn, d\u0259qiq \u00f6l\u00e7\u00fcl\u0259r v\u0259 hamar s\u0259thl\u0259r \u0259ld\u0259 etm\u0259k m\u0259qs\u0259dil\u0259 istifad\u0259 olunur, h\u0259m\u00e7inin keramika, \u015f\u00fc\u015f\u0259 istehsal\u0131 v\u0259 polad v\u0259 dig\u0259r metallar\u0131n istehsal\u0131nda da t\u0259tbiq edilir. Alter Technology bu materialdan istifad\u0259 ed\u0259r\u0259k kosmik m\u00fchitin ekstremal \u015f\u0259raitin\u0259 davam g\u0259tir\u0259 bil\u0259n radio sxem yaratd\u0131.<\/p>\n
Silikon karbidli keramika \u00f6z s\u0259rtliyi (Mohs s\u0259rtliyi > 9), kimy\u0259vi inertliyi, a\u015fa\u011f\u0131 istilik gen\u0259lm\u0259 \u0259msal\u0131 v\u0259 h\u0259m istiy\u0259, h\u0259m d\u0259 z\u0259rb\u0259y\u0259 davaml\u0131l\u0131\u011f\u0131 say\u0259sind\u0259 m\u00fcxt\u0259lif t\u0259tbiql\u0259r\u0259 malik olan f\u00f6vq\u0259lad\u0259 qeyri-oksid materiald\u0131r. Silikon karbid istilik ke\u00e7iricilik x\u00fcsusiyy\u0259tl\u0259rin\u0259 g\u00f6r\u0259 a\u015f\u0131nd\u0131r\u0131c\u0131larda a\u015f\u0131nmaya davaml\u0131 hiss\u0259l\u0259rd\u0259, refrakter keramikada, h\u0259m\u00e7inin yar\u0131mke\u00e7irici v\u0259 elektrik t\u0259tbiql\u0259rind\u0259 istifad\u0259 olunur.<\/p>\n
SiC istehsal etm\u0259k \u00fc\u00e7\u00fcn istehsal\u00e7\u0131lar \u0259vv\u0259lc\u0259 amorf silisiya dioksidini y\u00fcks\u0259k temperaturda \u2013 ad\u0259t\u0259n karbon m\u0259nb\u0259yi kimi k\u00f6m\u00fcr koksu \u2013 karbonla birl\u0259\u015fdirir, sonra onu inc\u0259 \u00fcy\u00fcd\u00fcb az miqdarda boksitl\u0259 qar\u0131\u015fd\u0131raraq preform yarad\u0131rlar. Daha sonra ist\u0259dikl\u0259ri t\u0259tbiqd\u0259n as\u0131l\u0131 olaraq ya azotla dopinq (n-tip SiC), ya da bor, al\u00fcminium v\u0259 galliumla dopinq (p-tip SiC) apar\u0131rlar.<\/p>\n
Sonra istehsal\u00e7\u0131lar bu \u00f6nforman\u0131 reaksiya il\u0259 birl\u0259\u015fdirm\u0259 v\u0259 ya kimy\u0259vi buxar \u00e7\u00f6kd\u00fcrm\u0259si \u00fcsulu il\u0259 kubik silikon karbid istehsal etm\u0259k \u00fc\u00e7\u00fcn istifad\u0259 edirl\u0259r. Reaksiya il\u0259 birl\u0259\u015fdirm\u0259 daha geni\u015f t\u0259tbiq olunan yoldur; bu, onu 1410 \u00b0C-y\u0259 q\u0259d\u0259r q\u0131zd\u0131rmaq v\u0259 n-tipli SiC \u0259ld\u0259 etm\u0259k \u00fc\u00e7\u00fcn azot v\u0259 ya boronla dopinq etm\u0259kd\u0259n ibar\u0259tdir. Kimy\u0259vi buxar \u00e7\u00f6kd\u00fcrm\u0259si prosesi is\u0259 xeyli daha \u00e7ox enerji v\u0259 avadanl\u0131q t\u0259l\u0259b edir; reaksiya il\u0259 birl\u0259\u015fdirm\u0259 is\u0259 daha az.<\/p>\n
Elektrik ke\u00e7irici yar\u0131mke\u00e7irici sinif SiC tozu \u00fc\u00e7\u00fcnc\u00fc n\u0259sil n-tipli ke\u00e7irici silisium karbid t\u0259k kristallar\u0131n\u0131n m\u00fcxt\u0259lif b\u00f6y\u00fctm\u0259 \u00fcsullar\u0131n\u0131n unikal t\u0259l\u0259bl\u0259rini qar\u015f\u0131lamaq \u00fc\u00e7\u00fcn n\u0259z\u0259rd\u0259 tutulub. Bu tip toz az bo\u015fluqlarla optimal hiss\u0259cik \u00f6l\u00e7\u00fcs\u00fc paylanmas\u0131na malikdir v\u0259 6N-d\u0259n y\u00fcks\u0259k m\u0259hsul safl\u0131\u011f\u0131 s\u0259viyy\u0259l\u0259rini t\u0259min edir.<\/p>","protected":false},"excerpt":{"rendered":"
Silikon karbid tozlar\u0131n\u0131 nec\u0259 haz\u0131rlamaq olar Silikon karbid, daha \u00e7ox karborundum kimi tan\u0131nan, almaz kimi s\u0259rt v\u0259 y\u00fcks\u0259k a\u015f\u0131nmaya davaml\u0131d\u0131r. Bundan \u0259lav\u0259, onun keramika x\u00fcsusiyy\u0259tl\u0259ri onu y\u00fcks\u0259k temperaturlu v\u0259 g\u0259rginlikli m\u00fchitl\u0259r \u00fc\u00e7\u00fcn uy\u011fun edir. Lely prosesi il\u0259 istehsal olunan toz moissanit qiym\u0259tli da\u015flar\u0131na k\u0259sil\u0259r\u0259k z\u0259rg\u0259rlik m\u0259qs\u0259dil\u0259 istifad\u0259 oluna bil\u0259r, halbuki \u2026 Daha \u00e7ox oxu<\/a><\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-19","post","type-post","status-publish","format-standard","hentry","category-knowledge"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/siliconcarbidepowders.com\/az\/wp-json\/wp\/v2\/posts\/19","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/siliconcarbidepowders.com\/az\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/siliconcarbidepowders.com\/az\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/siliconcarbidepowders.com\/az\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/siliconcarbidepowders.com\/az\/wp-json\/wp\/v2\/comments?post=19"}],"version-history":[{"count":1,"href":"https:\/\/siliconcarbidepowders.com\/az\/wp-json\/wp\/v2\/posts\/19\/revisions"}],"predecessor-version":[{"id":20,"href":"https:\/\/siliconcarbidepowders.com\/az\/wp-json\/wp\/v2\/posts\/19\/revisions\/20"}],"wp:attachment":[{"href":"https:\/\/siliconcarbidepowders.com\/az\/wp-json\/wp\/v2\/media?parent=19"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/siliconcarbidepowders.com\/az\/wp-json\/wp\/v2\/categories?post=19"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/siliconcarbidepowders.com\/az\/wp-json\/wp\/v2\/tags?post=19"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}