![\"sil\u012bcija](\"http:\/\/siliconcarbideceramic.net\/wp-content\/uploads\/2024\/04\/silicon-carbide-ceramic.jpg\")
<\/p>","protected":false},"excerpt":{"rendered":"Sil\u012bcija karb\u012bds (SiC) uzvedas l\u012bdz\u012bgi k\u0101 dimants, b\u016bdams viens no viegl\u0101kajiem, ciet\u0101kajiem un iztur\u012bg\u0101kajiem m\u016bsdien\u0101s pieejamajiem progres\u012bvajiem keramikas materi\u0101liem. Turkl\u0101t SiC nodro\u0161ina izcilu iztur\u012bbu pret nodilumu un eroziju, k\u0101 ar\u012b zemu termisk\u0101s izple\u0161an\u0101s koeficientu.<\/p>\n
m\u0113s pied\u0101v\u0101jam bl\u012bvu StarCeram SiC keramiku da\u017e\u0101d\u0101s form\u0101s un izm\u0113ros, kas ra\u017eota, izmantojot reakcijas sa\u0137epin\u0101\u0161anas vai parast\u0101s keramikas form\u0113\u0161anas metodes, un katrai metodei ir efekt\u012bva gala izstr\u0101d\u0101jumu mikrostrukt\u016bra.<\/p>\n
Sil\u012bcija karb\u012bds (SiC), ko parasti d\u0113v\u0113 par karborundu, ir viens no vissmag\u0101kajiem un viegl\u0101kajiem m\u016bsdien\u0101s pieejamajiem keramikas materi\u0101liem. Pateicoties t\u0101 izcilaj\u0101m \u012bpa\u0161\u012bb\u0101m, tas ir k\u013cuvis par vienu no ieteicam\u0101kaj\u0101m izv\u0113l\u0113m vid\u0113, kur citi materi\u0101li nevar iztur\u0113t karstuma slodzi.<\/p>\n
Ir zin\u0101ms, ka SiC saglab\u0101 savu iztur\u012bbu l\u012bdz pat 1600oC, vienlaikus saglab\u0101jot \u0137\u012bmisko t\u012br\u012bbu un iztur\u012bbu pret oksid\u0113\u0161anos pat \u0161aj\u0101s augst\u0101kaj\u0101s procesa temperat\u016br\u0101s, t\u0101p\u0113c tas ir ide\u0101li piem\u0113rots pusvad\u012bt\u0101ju pusvad\u012bt\u0101ju pl\u0101k\u0161\u0146u palikt\u0146u balstiem un palikt\u0146iem pusvad\u012bt\u0101ju kr\u0101sn\u012bs, k\u0101 ar\u012b kr\u0101\u0161\u0146u plauktiem ar liel\u0101m temperat\u016bras sv\u0101rst\u012bb\u0101m.<\/p>\n
Pateicoties iztur\u012bbai pret nodilumu un eroziju, \u0161o materi\u0101lu var izmantot \u0137\u012bmijas r\u016bpn\u012bc\u0101s smidzin\u0101\u0161anas sprausl\u0101m un cit\u0101m sast\u0101vda\u013c\u0101m, k\u0101 ar\u012b sl\u012bp\u0113\u0161anas\/grie\u0161anas darbiem un t\u0101d\u0101s vid\u0113s k\u0101 d\u016bmg\u0101zu desulfuriz\u0101cijas iek\u0101rtas.<\/p>\n
Sil\u012bcija karb\u012bds ir struktur\u0101la keramika ar izcilu nodilumiztur\u012bbu, zemu termisk\u0101s izple\u0161an\u0101s koeficientu un augstu ciet\u012bbu; \u0161\u012bs \u012bpa\u0161\u012bbas padara to par v\u0113lamu materi\u0101lu t\u0101dos r\u016bpnieciskos lietojumos k\u0101 sadeg\u0161anas kameras un d\u016bmg\u0101zu desulfuriz\u0101cijas iek\u0101rtas. Sil\u012bcija karb\u012bdu izmanto ar\u012b k\u0101 abraz\u012bvu str\u016bklas sprausl\u0101m, k\u0101 ar\u012b k\u0101 korozijiztur\u012bgas un nodilumiztur\u012bgas deta\u013cas kr\u0101sns m\u0113bel\u0113s, piem\u0113ram, kurtuvju pl\u0101ksnes, rekuperatoru caurules, st\u016bm\u0113jpl\u0101tnes, sl\u012bdlentes un viegl\u0101s sijas.<\/p>\n
Bora karb\u012bds un sil\u012bcija karb\u012bds ir popul\u0101ra izv\u0113le k\u0101 tribolo\u0123iskie komponenti \u0137\u012bmiskaj\u0101 r\u016bpniec\u012bb\u0101, jo tie ir \u012bpa\u0161i cieti un nodilumiztur\u012bgi augst\u0101 temperat\u016br\u0101. Pateicoties to izcilajai ciet\u012bbai un nodilumiztur\u012bbai, tie ir piem\u0113roti izmanto\u0161anai sprausl\u0101s, s\u016bk\u0146os, presform\u0101s un griez\u0113jinstrumentos, k\u0101 ar\u012b ir viegli form\u0113jami form\u0101s, kas daudzos gad\u012bjumos aizst\u0101j met\u0101la komponentus. Tiem piem\u012bt ar\u012b lieliska iztur\u012bba pret \u0137\u012bmisko iedarb\u012bbu.<\/p>\n
Tika pier\u0101d\u012bts, ka nitr\u012bdu savienotais sil\u012bcija karb\u012bds visos test\u0113tajos augsnes apst\u0101k\u013cos p\u0101rsp\u0113ja gan t\u0113rauda, gan polster\u0113juma \u0161uves, jo t\u0101 oks\u012bda barjera nov\u0113r\u0161 tie\u0161u kontaktu starp uzbr\u016bko\u0161aj\u0101m sug\u0101m un substr\u0101tu. Turkl\u0101t t\u0101 iztur\u012bba pret oksid\u0113\u0161anos p\u0101rsniedza vairumu materi\u0101lu; degrad\u0101cija notika l\u0113n\u0101k nek\u0101 met\u0101liskiem vai abraz\u012bviem materi\u0101liem, padarot nitr\u012bdu savienoto sil\u012bcija karb\u012bdu par lielisku materi\u0101lu ilgtermi\u0146a lieto\u0161anai naid\u012bg\u0101s vid\u0113s, kur sk\u0101beklis var sasniegt virsmu un rad\u012bt boj\u0101jumus.<\/p>\n
Sil\u012bcija karb\u012bda keramikai piem\u012bt lieliska termisko triecienu iztur\u012bba, t\u0101p\u0113c t\u0101 ir piem\u0113rota izmanto\u0161anai da\u017e\u0101dos lietojumos, piem\u0113ram, filtr\u0113\u0161an\u0101, inerci\u0101l\u0101s palai\u0161anas iek\u0101rt\u0101s un ra\u0137e\u0161u dzin\u0113ju sprausl\u0101s. Putu keramikas filtr\u0113\u0161anu parasti izmanto, lai no sakaus\u0113jumiem atdal\u012btu nemet\u0101liskus iesl\u0113gumus un att\u012br\u012btu met\u0101la \u0161\u0137\u012bdumu, savuk\u0101rt abraz\u012bvi iztur\u012bg\u0101s SiC pl\u0101ksnes var atrast automa\u0161\u012bnu izpl\u016bdes g\u0101zu att\u012br\u012bt\u0101ju oder\u0113jum\u0101.<\/p>\n
Keramikas iztur\u012bba pret termisko triecienu ir atkar\u012bga no t\u0101s termisk\u0101s izple\u0161an\u0101s koeficienta. Temperat\u016brai sv\u0101rstoties, t\u0101s termisk\u0101 izple\u0161an\u0101s attiec\u012bgi main\u0101s, radot t\u0101 saukto termisko gradientu, kas bie\u017ei vien rada spriegumu t\u0101s virsm\u0101 un galu gal\u0101 noved pie l\u016bzuma.<\/p>\n
Keramikas iztur\u012bbu pret termiskiem triecieniem var p\u0101rbaud\u012bt, izmantojot Hasselmanna metodi, kur\u0101 testa kuponus pak\u013cauj temperat\u016brai no 300o l\u012bdz 1000o, p\u0113c tam \u0101tri atdzes\u0113 v\u0113s\u0101 \u0161\u0137idrum\u0101, un tad m\u0113ra to iztur\u012bbas kritumu pie da\u017e\u0101diem temperat\u016bras kritumiem - tos, kas uzr\u0101da maz\u0101ko kritumu, uzskata par visiztur\u012bg\u0101kajiem pret termiskiem triecieniem.<\/p>\n
Sil\u012bcija karb\u012bds var lepoties gan ar izcilu iztur\u012bbu pret termiskiem triecieniem, gan ciet\u012bbu, t\u0101p\u0113c tas ir piem\u0113rots da\u017e\u0101diem r\u016bpnieciskiem lietojumiem, piem\u0113ram, abraz\u012bviem materi\u0101liem un nodilumiztur\u012bg\u0101m deta\u013c\u0101m. Turkl\u0101t \u0161is materi\u0101ls var iztur\u0113t abraz\u012bvu iedarb\u012bbu, kas rodas apstr\u0101des, grie\u0161anas ar \u016bdens str\u016bklu un smil\u0161u str\u016bklas darb\u012bbas laik\u0101, vienlaikus saglab\u0101jot augstu iztur\u012bbu pret koroziju ar\u012b augst\u0101k\u0101 temperat\u016br\u0101.<\/p>\n
Sil\u012bcija karb\u012bds ir \u012bpa\u0161i ciets keramikas materi\u0101ls ar izcilu nodilumiztur\u012bbu un aizsardz\u012bbu pret koroziju, saglab\u0101jot iztur\u012bbu pat augst\u0101 temperat\u016br\u0101, t\u0101p\u0113c tas ir ide\u0101li piem\u0113rots izmanto\u0161anai skarb\u0101s vid\u0113s - tas ir viens no galvenajiem materi\u0101liem, ko izmanto kompoz\u012btmateri\u0101lu bru\u0146u pl\u0101ksn\u0113s!<\/p>\n
m\u0113s pied\u0101v\u0101jam da\u017e\u0101du formu, izm\u0113ru un konfigur\u0101ciju sa\u0137epin\u0101tus sil\u012bcija karb\u012bda (SiC) komponentus, lai tie atbilstu sare\u017e\u0123\u012btiem apst\u0101k\u013ciem kosmosa, \u0137\u012bmisk\u0101s ra\u017eo\u0161anas, pap\u012bra ra\u017eo\u0161anas un energotehnolo\u0123iju lietojumos. SiC ir paz\u012bstams ar izcilu nodilumiztur\u012bbu un iztur\u012bbu pret koroziju, k\u0101 ar\u012b termisko triecienu un nodilumiztur\u012bbu - \u012bpa\u0161\u012bbas, kas padara to piem\u0113rotu t\u0101diem sare\u017e\u0123\u012btiem apst\u0101k\u013ciem k\u0101, piem\u0113ram, avi\u0101cijas un kosmosa nozare.<\/p>\n
SiC var izgatavot, izmantojot sa\u0137epin\u0101\u0161anas vai reakciju savieno\u0161anas procesus, turkl\u0101t abos gad\u012bjumos b\u016btiski main\u0101s t\u0101 mikrostrukt\u016bra un \u012bpa\u0161\u012bbas. Sinteriz\u0113tu SiC ra\u017eo, sa\u0137epinot t\u012bru SiC pulveri ar sa\u0137epin\u0101\u0161anas pal\u012bgviel\u0101m bez oks\u012bdiem augst\u0101 temperat\u016br\u0101 (2 000 gr\u0101du temperat\u016br\u0101) inert\u0101 atmosf\u0113r\u0101, izmantojot parast\u0101s keramikas form\u0113\u0161anas metodes. Reakt\u012bvi saist\u012bt\u0101 SiC gad\u012bjum\u0101 \u0161\u0137idro sil\u012bciju pievieno gan SiC, gan oglek\u013ca da\u013ci\u0146u mais\u012bjumu kompaktos, lai tos savienotu kop\u0101 t\u0101 sauktaj\u0101 melnaj\u0101 sil\u012bcija karb\u012bd\u0101.<\/p>\n
<\/p>","protected":false},"excerpt":{"rendered":"
Silicon Carbide (SiC) behaves much like diamond, being one of the lightest, hardest, and strongest advanced ceramic materials available today. […]<\/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":[5],"tags":[],"class_list":["post-110","post","type-post","status-publish","format-standard","hentry","category-product-related"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/siliconcarbideceramic.net\/lv\/wp-json\/wp\/v2\/posts\/110","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/siliconcarbideceramic.net\/lv\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/siliconcarbideceramic.net\/lv\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/lv\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/lv\/wp-json\/wp\/v2\/comments?post=110"}],"version-history":[{"count":4,"href":"https:\/\/siliconcarbideceramic.net\/lv\/wp-json\/wp\/v2\/posts\/110\/revisions"}],"predecessor-version":[{"id":200,"href":"https:\/\/siliconcarbideceramic.net\/lv\/wp-json\/wp\/v2\/posts\/110\/revisions\/200"}],"wp:attachment":[{"href":"https:\/\/siliconcarbideceramic.net\/lv\/wp-json\/wp\/v2\/media?parent=110"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/lv\/wp-json\/wp\/v2\/categories?post=110"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/lv\/wp-json\/wp\/v2\/tags?post=110"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}