Silicija karb\u012bda (SiC) abraz\u012bviem ir da\u017e\u0101di smil\u0161u izm\u0113ri, un tos bie\u017ei var atrast gan saistvielu, gan p\u0101rkl\u0101jumu abraz\u012bvos. Lai gan SiC var atrast dab\u012bg\u0101 veid\u0101 moisan\u012bta d\u0101rgakme\u0146os, liel\u0101koties SiC ra\u017eo\u0161an\u0101 izmanto A\u010desona procesu vai \u0137\u012bmisk\u0101s tvaiku uzkl\u0101\u0161anas tehnolo\u0123iju.<\/p>\n
L\u016bstam\u012bba, augsta siltumvad\u012btsp\u0113ja un iztur\u012bba pret koroziju padara to par ide\u0101lu materi\u0101lu kr\u0101sns oder\u0113jumam, t\u012b\u0123e\u013ciem un cit\u0101m t\u0113rauda ra\u017eo\u0161anas sast\u0101vda\u013c\u0101m.<\/p>\n
Sil\u012bcija karb\u012bds ir pla\u0161i paz\u012bstams ar savu izcilo ciet\u012bbu (otr\u0101 viet\u0101 p\u0113c dimanta un kubisk\u0101 bora nitr\u012bda), augsto iztur\u012bbu, \u0137\u012bmisko stabilit\u0101ti un temperat\u016bras iztur\u012bbu - \u012bpa\u0161\u012bbas, kas padara to par materi\u0101lu keramikas un ugunsiztur\u012bgo izstr\u0101d\u0101jumu ra\u017eo\u0161an\u0101. Turkl\u0101t sil\u012bcija karb\u012bds pla\u0161i tiek izmantots ar\u012b augstas veiktsp\u0113jas elektronikas ier\u012bc\u0113s, jo \u012bpa\u0161i jaudas pusvad\u012bt\u0101jos, met\u0101lu oks\u012bdu pusvad\u012bt\u0101ju lauka tranzistoru (MOSFET) un izol\u0113to v\u0101rtu bipol\u0101ro tranzistoru (IGBT) izstr\u0101d\u0101jumos.<\/p>\n
Ra\u017eot\u0101ji sil\u012bcija karb\u012bdu ra\u017eo, sil\u012bcija smil\u0161u un koksa mais\u012bjumu kars\u0113jot \u0101rk\u0101rt\u012bgi augst\u0101 temperat\u016br\u0101, l\u012bdz \u0137\u012bmiskaj\u0101 reakcij\u0101, kas paz\u012bstama k\u0101 SiC sint\u0113ze, atkar\u012bb\u0101 no t\u0101 t\u012br\u012bbas pak\u0101pes veidojas kristaliz\u0113tas formas, kas paz\u012bstamas k\u0101 za\u013cais vai melnais SiC. Kad SiC ir ieg\u016bts, to var t\u0101l\u0101k att\u012br\u012bt l\u012bdz da\u013ci\u0146u izm\u0113riem, kas piel\u0101goti konkr\u0113tiem lietojumiem, izmantojot da\u017e\u0101das sint\u0113zes metodes, piem\u0113ram, A\u010desona sh\u0113mu, oglek\u013ca termisko reduc\u0113\u0161anu un \u0161\u0137idro polim\u0113ru termisko sadal\u012b\u0161anos - katr\u0101 no t\u0101m izmanto energoietilp\u012bgus sild\u012b\u0161anas procesus, kuros j\u0101sasniedz reakcijas temperat\u016bra, lai veidotos kristaliz\u0113ti SiC krist\u0101li, pirms ra\u017eo\u0161anas pabeig\u0161anas ir nepiecie\u0161ama sk\u0101bes mazg\u0101\u0161ana un \u017e\u0101v\u0113\u0161ana, un tad tiek ieg\u016bts gal\u012bgais veidols.<\/p>\n
Sil\u012bcija karb\u012bda ra\u017eo\u0161ana s\u0101kas, sajaucot kop\u0101 pulverveida koksu un kvarcu, kam seko elektr\u012bbas padeve caur graf\u012bta serdi, lai to kars\u0113tu, l\u012bdz rodas rafin\u0113ts sil\u012bcija karb\u012bds (SiC) - \u0161o procesu sauc par A\u010dona procesu.<\/p>\n
Kad izejvielas ir sagatavotas, ar da\u017e\u0101d\u0101m metod\u0113m pulveri var p\u0101rv\u0113rst sagg\u0101r\u0101. Kad saggari ir izveidoti, tie tiek pak\u013cauti p\u0113capstr\u0101des posmiem, piem\u0113ram, meh\u0101niskai apstr\u0101dei un virsmas p\u0101rkl\u0101\u0161anai, kas nodro\u0161ina to iztur\u012bbu un notur\u012bbu pret \u0137\u012bmisko koroziju augst\u0101 temperat\u016br\u0101.<\/p>\n
Melnais sil\u012bcija karb\u012bda pulveris ir arvien popul\u0101r\u0101ks materi\u0101ls abraz\u012bvo izstr\u0101d\u0101jumu, piem\u0113ram, sl\u012bp\u0113\u0161anas disku un griez\u0113jinstrumentu, ra\u017eo\u0161anai, pateicoties t\u0101 izcilajai ciet\u012bbai un lieliskajai siltumvad\u012btsp\u0113jai. Turkl\u0101t \u0161o materi\u0101lu var atrast elektronikas r\u016bpniec\u012bbas pusvad\u012bt\u0101ju un diodu ra\u017eo\u0161anas procesos, k\u0101 ar\u012b pateicoties t\u0101 augstajai temperat\u016bras iztur\u012bbai, tas ir piem\u0113rots ugunsiztur\u012bgo materi\u0101lu izgatavo\u0161anai, ko izmanto kr\u0101sn\u012bs, kr\u0101sn\u012bs, t\u012b\u0123e\u013cos celtniec\u012bbas vai metalur\u0123ijas nozar\u0113.<\/p>\n
Sil\u012bcija karb\u012bda pulverim piem\u012bt izcilas meh\u0101nisk\u0101s \u012bpa\u0161\u012bbas, kas padara to piem\u0113rotu izmanto\u0161anai augsttemperat\u016br\u0101. T\u0101 ciet\u012bba un nodilumiztur\u012bba padara to \u013coti iztur\u012bgu pret nodilumu, savuk\u0101rt termisk\u0101 stabilit\u0101te, \u0137\u012bmisk\u0101 iztur\u012bba un elektrovad\u012btsp\u0113ja ar\u012b padara to \u013coti piepras\u012btu.<\/p>\n
\u0160\u012b materi\u0101la ra\u017eo\u0161ana ietver sil\u012bcija dioks\u012bda un koksa mais\u012bjuma kars\u0113\u0161anu \u013coti augst\u0101 temperat\u016br\u0101 \u012bpa\u0161\u0101 kr\u0101sn\u012b, kas izraisa to reakciju, veidojot lielus sil\u012bcija karb\u012bda krist\u0101lus.<\/p>\n
Kad sil\u012bcija karb\u012bds ir izveidots, tas ir j\u0101mazg\u0101, lai no t\u0101 atdal\u012btu piemais\u012bjumus, pirms \u017e\u0101v\u0113\u0161anas, izmantojot da\u017e\u0101dus pa\u0146\u0113mienus, piem\u0113ram, \u017e\u0101v\u0113\u0161anu karst\u0101 gais\u0101, vakuum\u0101 vai mikrovi\u013c\u0146u kr\u0101sn\u012b.<\/p>\n
P\u0113c \u017e\u0101v\u0113\u0161anas sil\u012bcija karb\u012bdu sasmalcina, \u0161\u0137iro, v\u0113lreiz sama\u013c un p\u0101rstr\u0101d\u0101 \u012bpa\u0161iem lietojumiem. Gal\u012bgais rezult\u0101ts ir lietnis, kuru p\u0113c tam var veidot atbilsto\u0161i individu\u0101l\u0101m specifik\u0101cij\u0101m - ra\u017eot\u0101ji izmanto \u0161o lietni, piem\u0113ram, deg\u013cu sprauslu izgatavo\u0161anai, kas ir neat\u0146emama sast\u0101vda\u013ca, lai nodro\u0161in\u0101tu maksim\u0101lu degvielas izsmidzin\u0101\u0161anas efektivit\u0101ti.<\/p>\n
Sil\u012bcija karb\u012bda pulveris izce\u013cas sare\u017e\u0123\u012bt\u0101s ra\u017eo\u0161anas vid\u0113s ar sav\u0101m iespaid\u012bgaj\u0101m \u012bpa\u0161\u012bb\u0101m, piem\u0113ram, neticamu ciet\u012bbu, lielisku siltumvad\u012btsp\u0113ju un iztur\u012bbu pret koroziju. T\u0101p\u0113c \u0161is materi\u0101ls jau sen tiek izmantots abraz\u012bvu un elektronikas ra\u017eo\u0161an\u0101, tostarp met\u0101lu vai keramikas fl\u012b\u017eu grie\u0161an\u0101 un pul\u0113\u0161an\u0101.<\/p>\n
Pateicoties t\u0101 izcilajai stingr\u012bbai un asumam, dimantu parasti izmanto abraz\u012bvu r\u016bpniec\u012bb\u0101 sl\u012bp\u0113\u0161anas disku un grie\u0161anas disku ra\u017eo\u0161an\u0101. Ar\u012b elektronikas ra\u017eot\u0101ji liel\u0101 m\u0113r\u0101 pa\u013caujas uz to, jo tam piem\u012bt lieliskas siltumvad\u012btsp\u0113jas \u012bpa\u0161\u012bbas, k\u0101 ar\u012b iztur\u012bba pret nodilumu.<\/p>\n
Sil\u012bcija karb\u012bda ra\u017eo\u0161anu var veikt videi draudz\u012bg\u0101 veid\u0101, izmantojot atjaunojamos ener\u0123ijas avotus un atkritumu re\u0123ener\u0101cijas sist\u0113mas, lai samazin\u0101tu siltumn\u012bcefekta g\u0101zu emisijas. Izmantojot \u0161\u0101du praksi, ra\u017eot\u0101ji var samazin\u0101t ener\u0123ijas pat\u0113ri\u0146u, vienlaikus samazinot darb\u012bbas izmaksas, kas ir \u012bpa\u0161i svar\u012bgi m\u016bsdienu apst\u0101k\u013cos, kad pieaug ener\u0123ijas izmaksas.<\/p>","protected":false},"excerpt":{"rendered":"
Sil\u012bcija karb\u012bda pulveri, kas revolucioniz\u0113 augsttemperat\u016bras ra\u017eo\u0161anas procesus Sil\u012bcija karb\u012bda (SiC) abraz\u012bviem materi\u0101liem ir da\u017e\u0101di smil\u0161u izm\u0113ri, un tos bie\u017ei var atrast gan saistvielu, gan p\u0101rkl\u0101jumu abraz\u012bvos. Lai gan SiC var atrast dab\u012bg\u0101 veid\u0101 moisan\u012bta d\u0101rgakme\u0146os, liel\u0101koties SiC ra\u017eo\u0161an\u0101 izmanto A\u010desona procesu vai \u0137\u012bmisk\u0101s tvaiku uzkl\u0101\u0161anas tehnolo\u0123iju. L\u016bstam\u012bba, augsta siltumvad\u012btsp\u0113ja un ... Las\u012bt t\u0101l\u0101k<\/a><\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-80","post","type-post","status-publish","format-standard","hentry","category-product"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/siliconcarbidepowders.com\/lv\/wp-json\/wp\/v2\/posts\/80","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/siliconcarbidepowders.com\/lv\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/siliconcarbidepowders.com\/lv\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/siliconcarbidepowders.com\/lv\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/siliconcarbidepowders.com\/lv\/wp-json\/wp\/v2\/comments?post=80"}],"version-history":[{"count":1,"href":"https:\/\/siliconcarbidepowders.com\/lv\/wp-json\/wp\/v2\/posts\/80\/revisions"}],"predecessor-version":[{"id":81,"href":"https:\/\/siliconcarbidepowders.com\/lv\/wp-json\/wp\/v2\/posts\/80\/revisions\/81"}],"wp:attachment":[{"href":"https:\/\/siliconcarbidepowders.com\/lv\/wp-json\/wp\/v2\/media?parent=80"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/siliconcarbidepowders.com\/lv\/wp-json\/wp\/v2\/categories?post=80"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/siliconcarbidepowders.com\/lv\/wp-json\/wp\/v2\/tags?post=80"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}