![\"Sil\u012bcija](\"http:\/\/siliconcarbideceramic.net\/wp-content\/uploads\/2024\/10\/Silicon-Carbide-Powder.jpg\")
<\/p>","protected":false},"excerpt":{"rendered":"Sil\u012bcija karb\u012bds (SiC) ir neorganisks \u0137\u012bmisks savienojums, kas sast\u0101v no sil\u012bcija un oglek\u013ca un dab\u0101 sastopams k\u0101 \u0101rk\u0101rt\u012bgi rets miner\u0101ls moizan\u012bts, tom\u0113r masveida ra\u017eo\u0161ana tika uzs\u0101kta 1893. gad\u0101 gan pulvera, gan krist\u0101lu veid\u0101, lai to izmantotu k\u0101 abraz\u012bvu.<\/p>\n
Melnais sil\u012bcija karb\u012bds ir abraz\u012bvs augstas precizit\u0101tes sl\u012bp\u0113\u0161anai un pul\u0113\u0161anai, pateicoties t\u0101 lielajiem krist\u0101liem, izcilajai stingr\u012bbai, bl\u012bvai tekst\u016brai un atk\u0101rtotai veiktsp\u0113jai.<\/p>\n
Sil\u012bcija karb\u012bda pulveris ir \u0101rk\u0101rt\u012bgi ciets un nodilumiztur\u012bgs materi\u0101ls, t\u0101p\u0113c tas ir ide\u0101ls izejmateri\u0101ls abraz\u012bvo materi\u0101lu, piem\u0113ram, sl\u012bp\u0113\u0161anas disku un griez\u0113jinstrumentu, ra\u017eo\u0161anai. Turkl\u0101t t\u0101 lielisk\u0101 siltumvad\u012btsp\u0113ja un iztur\u012bba \u013cauj to pla\u0161i izmantot k\u0101 piedevu komponentu elektronikas ra\u017eo\u0161anas procesos un pusvad\u012bt\u0101ju ra\u017eo\u0161an\u0101.<\/p>\n
SiC var izgatavot, sil\u012bcija smiltis kars\u0113jot ar oglek\u013ca avotiem, piem\u0113ram, naftas koksu, augst\u0101 temperat\u016br\u0101 atkl\u0101t\u0101 \"Achesona\" kr\u0101sn\u012b, ieg\u016bstot za\u013cas vai melnas kr\u0101sas sil\u012bcija karb\u012bda graudus ar maz\u0101ku piemais\u012bjumu daudzumu nek\u0101 zem\u0101kas kvalit\u0101tes analog\u0101.<\/p>\n
Za\u013co vai melno sil\u012bcija karb\u012bda pulveri sajauc ar sa\u0137epin\u0101\u0161anas pal\u012bgl\u012bdzekli, kas nav oks\u012bds un ko sauc par saistvielu, lai ieg\u016btu pastu. P\u0113c tam \u0161o pastu sabl\u012bv\u0113 un veido, izmantojot ekstr\u016bziju (caurules) vai auksto izostatisko pres\u0113\u0161anu, kad da\u013ci\u0146as ar spiedienu no vair\u0101kiem virzieniem iespie\u017e stingr\u0101s form\u0101s, lai veidotu formas, kuras p\u0113c tam var apstr\u0101d\u0101t.<\/p>\n
Sil\u012bcija karb\u012bda pulvera lielisk\u0101 siltumvad\u012btsp\u0113ja padara to par nenov\u0113rt\u0113jamu materi\u0101lu da\u017e\u0101d\u0101s r\u016bpniec\u012bbas nozar\u0113s, jo \u012bpa\u0161i elektronikas un pusvad\u012bt\u0101ju ra\u017eo\u0161an\u0101, kur t\u0101 sp\u0113ja iztur\u0113t augstas temperat\u016bras, nek\u013c\u016bstot nestabilam, ir liels ieguvums.<\/p>\n
Materi\u0101li ar augstu iztur\u012bbu pret boj\u0101jumiem un termisko \u0161oku ir akrils. \u0160is univers\u0101lais materi\u0101ls var iztur\u0113t iev\u0113rojamas plastisk\u0101s deform\u0101cijas pirms l\u016bzuma un var lepoties ar zemu izple\u0161an\u0101s \u0101trumu, mainoties temperat\u016brai.<\/p>\n
Meln\u0101 sil\u012bcija karb\u012bda smiltis, at\u0161\u0137ir\u012bb\u0101 no dimanta, ir \u013coti iztur\u012bgas un univers\u0101las; t\u0101s var izmantot, piem\u0113ram, sl\u012bp\u0113\u0161anas rip\u0101m, smil\u0161pap\u012bram un abraz\u012bviem materi\u0101liem ar p\u0101rkl\u0101jumu un saistviel\u0101m smidzin\u0101\u0161anai. Pateicoties t\u0101 ciet\u012bbai un lieliskajai \u0137\u012bmiskajai un termiskajai stabilit\u0101tei, tas ir pieejama alternat\u012bva bora karb\u012bda abraz\u012bviem materi\u0101liem, kas tiek ra\u017eoti, izmantojot reakcijas saist\u012b\u0161anu, k\u0101 izejvielas izmantojot t\u012bras sil\u012bcija smiltis un ogles \u0137ie\u0123e\u013cu elektrisk\u0101s pretest\u012bbas tipa kr\u0101sn\u012bs.<\/p>\n
SiC ir viens no ciet\u0101kajiem sint\u0113tiskajiem materi\u0101liem, kas p\u0113c ciet\u012bbas ir otrs p\u0113c dimanta. \u0160\u012b \u012bpa\u0161\u012bba padara to par pievilc\u012bgu materi\u0101lu lietojumiem, kur svar\u012bga ir augsta veiktsp\u0113ja un iztur\u012bba, piem\u0113ram, abraz\u012bviem lietojumiem.<\/p>\n
m\u0113s pied\u0101v\u0101jam gan reakcijas saist\u012bt\u0101 sil\u012bcija karb\u012bda, gan cement\u0113ta volframa karb\u012bda izstr\u0101d\u0101jumus, kas izstr\u0101d\u0101ti, lai atbilstu \u012bpa\u0161\u0101m ugunsiztur\u012bg\u0101m, \u0137\u012bmisk\u0101m un termisk\u0101m \u012bpa\u0161\u012bb\u0101m. Reakcijas rezult\u0101t\u0101 saist\u012btais sil\u012bcija karb\u012bds ir ide\u0101li piem\u0113rots lietojumiem, kur j\u0101\u0146em v\u0113r\u0101 nodilumiztur\u012bba vai sare\u017e\u0123\u012btas formas; cement\u0113tais volframa karb\u012bds pied\u0101v\u0101 lab\u0101kas siltumizol\u0101cijas un \u0137\u012bmisk\u0101s izol\u0101cijas \u012bpa\u0161\u012bbas nek\u0101 t\u0101 analogs.<\/p>\n
Meln\u0101 sil\u012bcija karb\u012bda abraz\u012bvo \u012bpa\u0161\u012bbu d\u0113\u013c tas ir popul\u0101rs automobi\u013cu un kosmisk\u0101s avi\u0101cijas r\u016bpniec\u012bb\u0101, lai hon\u0113tu un piesl\u012bp\u0113tu deta\u013cas l\u012bdz prec\u012bziem izm\u0113riem un apdarei, vai ar\u012b att\u012br\u012btu t\u0101s no korozijas un nodilumiztur\u012bbas. Turkl\u0101t t\u0101 \u0101rk\u0101rt\u012bg\u0101 iztur\u012bba un iztur\u012bba \u013cauj tam iztur\u0113t ekstr\u0113mas vides apst\u0101k\u013cus, saglab\u0101jot to neskartu, un t\u0101 iztur\u012bba pret koroziju un nodilumu padara to paz\u012bstamu k\u0101 abraz\u012bvu materi\u0101lu smidzin\u0101\u0161anai. Turkl\u0101t t\u0101 iztur\u012bba pret koroziju un nodilumu pal\u012bdz paildzin\u0101t deta\u013cu kalpo\u0161anas laiku, vienlaikus samazinot d\u012bkst\u0101ves laiku - \u012bpa\u0161i tas attiecas uz t\u0101diem instrumentiem k\u0101 sl\u012bp\u0113\u0161anas rite\u0146i vai abraz\u012bvie abraz\u012bvie materi\u0101li, kuros izmanto melno sil\u012bcija karb\u012bda abraz\u012bvus vai griez\u0113jinstrumentus, kam nepiecie\u0161ama past\u0101v\u012bga apkope vai d\u012bkst\u0101ve, jo no \u0161\u012b materi\u0101la izgatavoti korozijas\/nodilumiztur\u012bgi p\u0101rkl\u0101jumi vai griez\u0113jinstrumenti.<\/p>\n
Sil\u012bcija karb\u012bds ir \u0101rk\u0101rt\u012bgi ciets un viegls keramikas materi\u0101ls ar lielisku termisko stabilit\u0101ti un iztur\u012bbu pret koroziju, t\u0101p\u0113c tas ir piem\u0113rots lietojumiem, kas saist\u012bti ar liel\u0101m slodz\u0113m, piem\u0113ram, r\u016bpniecisk\u0101m iek\u0101rt\u0101m un automobi\u013cu deta\u013c\u0101m.<\/p>\n
Moisan\u012btu, pusvad\u012bt\u0101ju materi\u0101lu ar pla\u0161u joslas spraugu, kas dab\u0101 sastopams k\u0101 d\u0101rgakmens moisan\u012bts, masveid\u0101 ra\u017eo kop\u0161 19. gadsimta beig\u0101m, lai to izmantotu k\u0101 abraz\u012bvu, piem\u0113ram, sl\u012bpripas un griez\u0113jinstrumentus, k\u0101 ugunsiztur\u012bgu oder\u0113jumu s\u016bk\u0146iem, ra\u0137e\u0161u dzin\u0113jiem un cit\u0101m ma\u0161\u012bn\u0101m, jo no \u0161\u012b materi\u0101la izgatavotas nodilumiztur\u012bgas deta\u013cas, stingr\u012bba, iztur\u012bba pret termiskiem triecieniem un iztur\u012bba ir v\u0113lamas \u012bpa\u0161\u012bbas ar\u012b teleskopu spogu\u013cu izgatavo\u0161anai.<\/p>\n
A\u010dsona ori\u0123in\u0101l\u0101 SiC ra\u017eo\u0161anas metode joproj\u0101m ir m\u016bsdienu ra\u017eo\u0161anas centr\u0101, lai to izmantotu abraz\u012bvos, metalur\u0123ij\u0101 un ugunsiztur\u012bgajos materi\u0101los. Izejvielas kars\u0113 augst\u0101 temperat\u016br\u0101 atkl\u0101t\u0101 kr\u0101sn\u012b, l\u012bdz veidojas za\u013cgani melns krist\u0101lisks SiC, ko ieskauj da\u013c\u0113ji vai piln\u012bb\u0101 nep\u0101rveidots sil\u012bcija dioks\u012bds un ogleklis naftas koksa veid\u0101.<\/p>\n
<\/p>","protected":false},"excerpt":{"rendered":"
Silicon Carbide Powder – High Efficiency Abrasive for Industrial Use Silicon carbide (SiC) is an inorganic chemical compound composed of […]<\/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-358","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\/358","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=358"}],"version-history":[{"count":1,"href":"https:\/\/siliconcarbideceramic.net\/lv\/wp-json\/wp\/v2\/posts\/358\/revisions"}],"predecessor-version":[{"id":360,"href":"https:\/\/siliconcarbideceramic.net\/lv\/wp-json\/wp\/v2\/posts\/358\/revisions\/360"}],"wp:attachment":[{"href":"https:\/\/siliconcarbideceramic.net\/lv\/wp-json\/wp\/v2\/media?parent=358"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/lv\/wp-json\/wp\/v2\/categories?post=358"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/lv\/wp-json\/wp\/v2\/tags?post=358"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}