Sil\u012bcija karb\u012bds (SiC) ir inerts, ciets keramikas materi\u0101ls ar izcil\u0101m fizik\u0101laj\u0101m \u012bpa\u0161\u012bb\u0101m. T\u0101 ciet\u012bbas d\u0113\u013c to izmanto ugunsiztur\u012bgajos materi\u0101los un abraz\u012bvos materi\u0101los, k\u0101 ar\u012b augsttemperat\u016bras lietojumos, kur termisk\u0101 stabilit\u0101te un nodilumiztur\u012bba ir \u013coti svar\u012bga.<\/p>\n
Tikai dimants un bora karb\u012bds ir ciet\u0101ki par SiC. Ja SiC ir augstas t\u012br\u012bbas pak\u0101pes, tas var b\u016bt bezkr\u0101sains; pret\u0113j\u0101 gad\u012bjum\u0101, ra\u017eojot ar Lely metodi, tas var ieg\u016bt melnas nokr\u0101sas.<\/p>\n
Sil\u012bcija karb\u012bds - bie\u017e\u0101k d\u0113v\u0113ts par karborundu - ir \u0101rk\u0101rt\u012bgi ciets \u0137\u012bmisks savienojums, kas sast\u0101v no sil\u012bcija un oglek\u013ca un dab\u0101 sastopams tikai da\u017ek\u0101rt moisan\u012bta veid\u0101, ta\u010du kop\u0161 19. gadsimta beig\u0101m masveid\u0101 tiek ra\u017eots gan pulvera, gan krist\u0101lu veid\u0101.<\/p>\n
Melno sil\u012bcija karb\u012bdu (SiC) bie\u017ei izmanto abraz\u012bvos, jo tas ir ciets un nodilumiztur\u012bgs. Turkl\u0101t SiC var izmantot ar\u012b k\u0101 da\u013cu no ugunsiztur\u012bgiem oder\u0113jumiem, sild\u012bt\u0101jiem\/kars\u0113\u0161anas elementiem\/grie\u0161anas instrumentiem\/ un pusvad\u012bt\u0101ju substr\u0101tiem, ko izmanto gaismas diod\u0113s un ener\u0123ijas ier\u012bc\u0113s.<\/p>\n
Ar nitr\u012bdu saist\u012btu sil\u012bcija karb\u012bdu (NB SiC) ra\u017eo proces\u0101, ko sauc par nitrid\u0113\u0161anu, kur\u0101 neapstr\u0101d\u0101tus SiC graudus kars\u0113 un sajauc ar sl\u0101pekli saturo\u0161iem savienojumiem, veidojot bl\u012bvu un meh\u0101niski iztur\u012bgu kompoz\u012btu materi\u0101lu. Turkl\u0101t \u0161im sil\u012bcija karb\u012bda veidam piem\u012bt izcila termisk\u0101 triecieniztur\u012bba, kas \u013cauj tam iztur\u0113t straujas temperat\u016bras mai\u0146as, laika gait\u0101 nesal\u016bstot un nesadaloties.<\/p>\n
Sil\u012bcija karb\u012bds ir viens no iztur\u012bg\u0101kajiem keramikas materi\u0101liem, kas nav oks\u012bds, un tam piem\u012bt \u0101rk\u0101rt\u012bgi cieta Knoop ciet\u012bba, kas ir starp dimanta un kubisk\u0101 bora nitr\u012bda ciet\u012bbu, kas nodro\u0161ina ilgsto\u0161u nodilumiztur\u012bbu un iztur\u012bbu, lai iztur\u0113tu ekstrem\u0101las temperat\u016bras un slodzes.<\/p>\n
Melno SiC pulveri pla\u0161i izmanto automobi\u013cu un kosmisk\u0101s avi\u0101cijas r\u016bpniec\u012bb\u0101, lai sl\u012bp\u0113tu, pul\u0113tu un piesl\u012bp\u0113tu met\u0101la un keramikas deta\u013cas l\u012bdz prec\u012bziem izm\u0113riem ar gludu apdari. T\u0101 k\u0101 \u0161is abraz\u012bvs ir iztur\u012bg\u0101ks par dimantu, tas bie\u017ei tiek izv\u0113l\u0113ts t\u0101 konkurentu viet\u0101.<\/p>\n
Rea\u0123\u0113jot saist\u012btais sil\u012bcija karb\u012bds (RB SiC) tiek ra\u017eots, iepildot izkaus\u0113tu sil\u012bciju porain\u0101 oglek\u013ca materi\u0101l\u0101, kas veidots vajadz\u012bgaj\u0101 deta\u013cas form\u0101, ieg\u016bstot augstas veiktsp\u0113jas, \u0137\u012bmiski iztur\u012bgu struktur\u0101lo keramiku ar zemu termisk\u0101s izple\u0161an\u0101s koeficientu. RB SiC var atrast s\u016bk\u0146os un meh\u0101niskajos bl\u012bv\u0113jumos, gult\u0146os un liel\u0101k\u0101s nodilsto\u0161\u0101s deta\u013c\u0101s.<\/p>\n
Sil\u012bcija karb\u012bds ir viena no trim ciet\u0101kaj\u0101m viel\u0101m uz Zemes, otr\u0101 viet\u0101 p\u0113c dimanta un bora karb\u012bda. Pateicoties \u0161ai neticamajai ciet\u012bbai, sil\u012bcija karb\u012bds sp\u0113j iztur\u0113t gan \u0101rk\u0101rt\u0113ju spiedienu, gan meh\u0101nisku slodzi, t\u0101p\u0113c tas ir piem\u0113rots kosmisk\u0101s avi\u0101cijas deta\u013c\u0101m, automobi\u013cu r\u016bpniec\u012bbai un griez\u0113jinstrumentiem.<\/p>\n
Augstas veiktsp\u0113jas keramika ir \u013coti iztur\u012bga pret koroziju un nodilumu, k\u0101 ar\u012b sp\u0113j iztur\u0113t straujas temperat\u016bras mai\u0146as, nesaplais\u0101jot un nedeform\u0113joties. Turkl\u0101t to var p\u0101rstr\u0101d\u0101t funkcion\u0101laj\u0101 keramik\u0101, modernos ugunsiztur\u012bgos materi\u0101los un pat abraz\u012bvos materi\u0101los.<\/p>\n
Melnais sil\u012bcija karb\u012bda pulveris (SiCp) ir svar\u012bgs instruments met\u0101la, keramikas un stikla hon\u0113\u0161anai, pietupin\u0101\u0161anai un pul\u0113\u0161anai, lai ieg\u016btu prec\u012bzus izm\u0113rus un gludas virsmas. Papildus tam, ka SiC tiek izmantots k\u0101 abraz\u012bvs materi\u0101ls, tas var kalpot ar\u012b k\u0101 antioksidants t\u0113rauda ra\u017eo\u0161an\u0101 un lietuv\u0113s, k\u0101 ar\u012b k\u0101 augstas temperat\u016bras iztur\u012bgs materi\u0101ls lietuv\u0113s. Citas SiC \u0161\u0137irnes ir nitr\u012bda saist\u012btais sil\u012bcija karb\u012bds (NB SiC) un sa\u0137epin\u0101tais reakcijas saist\u012btais sil\u012bcija karb\u012bda nitr\u012bds (SRBSN); \u0161ajos procesos SRBSN ieg\u016bst, kars\u0113jot pretest\u012bbas kr\u0101sn\u012b.<\/p>\n
Sil\u012bcija karb\u012bds ir ide\u0101ls materi\u0101ls, ko var izmantot lietojumiem, kuriem nepiecie\u0161ama \u0101rk\u0101rt\u0113ja iztur\u012bba un ciet\u012bba, piem\u0113ram, automa\u0161\u012bnu bremz\u0113m vai keramikas pl\u0101ksn\u0113m, ko izmanto bru\u0146uvest\u0113s. Turkl\u0101t \u0161im materi\u0101lam piem\u012bt izcilas \u0137\u012bmisk\u0101s iztur\u012bbas \u012bpa\u0161\u012bbas, un tas var iztur\u0113t pat augstas temperat\u016bras, nesalstot.<\/p>\n
Moisan\u012bts ir viens no ciet\u0101kajiem sint\u0113tiskajiem materi\u0101liem, kura ciet\u012bbas r\u0101d\u012bt\u0101js p\u0113c Mosa skalas ir 9, kas ir sal\u012bdzin\u0101ms ar dimanta ciet\u012bbas r\u0101d\u012bt\u0101ju. Lai gan dab\u0101 tas eksist\u0113 k\u0101 retais miner\u0101ls moisan\u012bts, masveida ra\u017eo\u0161anas procesos \u0161\u012bs ciet\u0101s sint\u0113tisk\u0101s vielas masveida ra\u017eo\u0161anai izmanto sil\u012bcija un oglek\u013ca pulveri, izmantojot sa\u0137epin\u0101\u0161anas procesus.<\/p>\n
Sil\u012bcija karb\u012bda iztur\u012bba palielin\u0101s, pateicoties nepol\u0101ro virsmu \u016bde\u0146ra\u017ea saitei, un tas ir noder\u012bgs k\u0101 deoksid\u0113t\u0101js t\u0113rauda ra\u017eo\u0161an\u0101, veicinot uzau\u0161anu un palielinot sakaus\u0113juma elementu atg\u016b\u0161anas \u0101trumu. Sil\u012bcija karb\u012bda termisk\u0101s stabilit\u0101tes un \u0137\u012bmisk\u0101s inertuma d\u0113\u013c pusvad\u012bt\u0101ju pl\u0101k\u0161\u0146u apstr\u0101des iek\u0101rtu sil\u012bcija karb\u012bda komponenti garant\u0113 uzticamu darb\u012bbu pat augsttemperat\u016bras apst\u0101k\u013cos.<\/p>\n
Sil\u012bcija karb\u012bda pulveri nodro\u0161ina ide\u0101lu ciet\u012bbas un vad\u012btsp\u0113jas kombin\u0101ciju, ja tos izmanto k\u0101 abraz\u012bvu vai abraz\u012bvi iztur\u012bgos keramikas komponentos, k\u0101 ar\u012b savieno kop\u0101, izmantojot sa\u0137epin\u0101\u0161anu, lai rad\u012btu augstas veiktsp\u0113jas r\u016bpniecisk\u0101s keramikas izstr\u0101d\u0101jumus.<\/p>\n
Sil\u012bcija karb\u012bda keramika m\u016bsdien\u0101s ir k\u013cuvusi par vienu no piepras\u012bt\u0101kajiem keramikas materi\u0101liem, pateicoties t\u0101s iev\u0113rojamaj\u0101m \u012bpa\u0161\u012bb\u0101m, kas sniedzas no \u0101rk\u0101rt\u0113jas iztur\u012bbas un iztur\u012bbas pret koroziju l\u012bdz termiskai stabilit\u0101tei un karstumiztur\u012bbai - \u012bpa\u0161\u012bbas, kas to ir padar\u012bju\u0161as par vienu no galvenaj\u0101m pat\u0113r\u0113t\u0101ju automobi\u013cu brem\u017eu klu\u010du un lo\u017eu necaurlaid\u012bgo vestu pl\u0101k\u0161\u0146u izv\u0113les iesp\u0113j\u0101m. Sil\u012bcija karb\u012bds nodro\u0161ina gan iztur\u012bbu, gan termisko notur\u012bbu.<\/p>","protected":false},"excerpt":{"rendered":"
Sil\u012bcija karb\u012bda pulveri, kas revolucioniz\u0113 keramikas iztur\u012bbu Sil\u012bcija karb\u012bds (SiC) ir inerts, ciets keramikas materi\u0101ls ar izcil\u0101m fizik\u0101laj\u0101m \u012bpa\u0161\u012bb\u0101m. T\u0101 ciet\u012bbas d\u0113\u013c to izmanto ugunsiztur\u012bgajos materi\u0101los un abraz\u012bvos materi\u0101los, k\u0101 ar\u012b augsttemperat\u016bras lietojumos, kur termisk\u0101 stabilit\u0101te un nodilumiztur\u012bba ir \u013coti svar\u012bga. Tikai dimants un bora karb\u012bds ir ciet\u0101ki par SiC. Augstas t\u012br\u012bbas pak\u0101pes, ... 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-69","post","type-post","status-publish","format-standard","hentry","category-product"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/siliconcarbidepowders.com\/lv\/wp-json\/wp\/v2\/posts\/69","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=69"}],"version-history":[{"count":1,"href":"https:\/\/siliconcarbidepowders.com\/lv\/wp-json\/wp\/v2\/posts\/69\/revisions"}],"predecessor-version":[{"id":70,"href":"https:\/\/siliconcarbidepowders.com\/lv\/wp-json\/wp\/v2\/posts\/69\/revisions\/70"}],"wp:attachment":[{"href":"https:\/\/siliconcarbidepowders.com\/lv\/wp-json\/wp\/v2\/media?parent=69"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/siliconcarbidepowders.com\/lv\/wp-json\/wp\/v2\/categories?post=69"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/siliconcarbidepowders.com\/lv\/wp-json\/wp\/v2\/tags?post=69"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}