![\"Reakt\u012bvi](\"http:\/\/siliconcarbideceramic.net\/wp-content\/uploads\/2024\/10\/Reaction-Bonded-SiC.jpg\")
<\/p>","protected":false},"excerpt":{"rendered":"Reakcijas ce\u013c\u0101 saist\u012btais SiC (RBSC) ir bl\u012bvs keramikas materi\u0101ls, kas sast\u0101v no sil\u012bcija karb\u012bda un oglek\u013ca da\u013ci\u0146\u0101m. Apdedzin\u0101\u0161anas proces\u0101 t\u0101 izm\u0113ri main\u0101s minim\u0101li, kas \u013cauj ra\u017eot izstr\u0101d\u0101jumus, kuru forma ir gandr\u012bz gatava lieto\u0161anai, bez papildu izmaks\u0101m par apstr\u0101di p\u0113c apdedzin\u0101\u0161anas.<\/p>\n
Tika konstat\u0113ts, ka RBSC poru strukt\u016bras ir atkar\u012bgas no vair\u0101kiem galvenajiem main\u012bgajiem lielumiem, kas saist\u012bti ar grafitiz\u0101cijas pak\u0101pi, oglek\u013ca avotu izm\u0113ru un morfolo\u0123iju; to ietekme uz oglek\u013ca reaktivit\u0101ti attiec\u012bb\u0101 pret sil\u012bcija kaus\u0113jumu bija milz\u012bga.<\/p>\n
Sil\u012bcija karb\u012bds ir \u0101rk\u0101rt\u012bgi iztur\u012bgs un stingrs materi\u0101ls, kas sp\u0113j iztur\u0113t lielas slodzes, nezaud\u0113jot savu struktur\u0101lo integrit\u0101ti. Pateicoties zemajam bl\u012bvumam un augstajai \u012bpatn\u0113jai stingr\u012bbai, sil\u012bcija karb\u012bds ir v\u0113lams materi\u0101ls t\u0101d\u0101s situ\u0101cij\u0101s k\u0101 kosmiskie teleskopi, kur ir j\u0101\u0146em v\u0113r\u0101 svara ierobe\u017eojumi.<\/p>\n
RB SiC \u0137\u012bmisk\u0101 inerta \u012bpa\u0161\u012bba padara to ide\u0101li piem\u0113rotu lietojumiem, kuros tas non\u0101k saskar\u0113 ar agres\u012bv\u0101m \u0137\u012bmisk\u0101m viel\u0101m. Turkl\u0101t t\u0101 iztur\u012bba pret temperat\u016bras sv\u0101rst\u012bb\u0101m \u013cauj tam iztur\u0113t p\u0113k\u0161\u0146as vides apst\u0101k\u013cu izmai\u0146as.<\/p>\n
Lai palielin\u0101tu RB SiC lieces iztur\u012bbu un elast\u012bbas moduli, m\u0113s p\u0113t\u012bj\u0101m, k\u0101 da\u017e\u0101ds oglek\u013ca saturs ietekm\u0113 t\u0101 mikrostrukt\u016bru. Izmantojot PF un FA prekursoru kompoz\u012bta prekursoru \u0161\u0137\u012bdumu, mums izdev\u0101s kontrol\u0113t gan oglek\u013ca saturu, gan krist\u0101liskumu m\u016bsu porainaj\u0101 sagatav\u0113, t\u0101d\u0113j\u0101di ieg\u016bstot RB SiC ar augst\u0101ku lieces iztur\u012bbu un elast\u012bbas moduli.<\/p>\n
SiC ir materi\u0101ls ar \u013coti augstu siltumvad\u012btsp\u0113ju \u2014 t\u0101 vad\u012btsp\u0113ja ir aptuveni 300 W\/mK \u2014, t\u0101d\u0113\u013c RBSC ir lieliska izv\u0113le lietojumiem, kuros nepiecie\u0161ama augsta temperat\u016bras iztur\u012bba.<\/p>\n
RBSC izce\u013cas ar izcilu iztur\u012bbu pret abraz\u012bvo un eroz\u012bvo nodilumu, t\u0101d\u0113\u013c tas ir ide\u0101li piem\u0113rots pras\u012bg\u0101m r\u016bpniecisk\u0101m vid\u0113m. Turkl\u0101t t\u0101 zemais siltuma izple\u0161an\u0101s koeficients \u013cauj iztur\u0113t straujas temperat\u016bras sv\u0101rst\u012bbas, neietekm\u0113jot konstrukcijas integrit\u0101ti.<\/p>\n
RBSC sagatavju ra\u017eo\u0161an\u0101 izmantoto izejvielu da\u013ci\u0146u izm\u0113ru sadal\u012bjumam ir milz\u012bga ietekme uz to mikrostrukt\u016bru un fizik\u0101laj\u0101m \u012bpa\u0161\u012bb\u0101m, piem\u0113ram, lieces iztur\u012bbu un elast\u012bbas modu\u013ca v\u0113rt\u012bb\u0101m. Oglek\u013ca melnuma satura palielin\u0101\u0161ana nodro\u0161ina uzlabotu mikrostrukt\u016bru, k\u0101 rezult\u0101t\u0101 gatavajiem izstr\u0101d\u0101jumiem ar lab\u0101ku mikrostrukt\u016bru ir liel\u0101ka lieces iztur\u012bba un elast\u012bbas modulis.<\/p>\n
Reakcijas ce\u013c\u0101 saist\u012btais SiC pied\u0101v\u0101 risin\u0101jumus lietojumiem, kuros nepiecie\u0161ama iztur\u012bba pret augst\u0101m temperat\u016br\u0101m un izcilas siltuma izple\u0161an\u0101s \u012bpa\u0161\u012bbas, ko pan\u0101k, ra\u017eo\u0161anas proces\u0101 izmantojot oglek\u013ca melnumu un mikrosf\u0113risku graf\u012btu. Reakcijas ce\u013c\u0101 saist\u012bt\u0101 SiC sast\u0101vs, strukt\u016bra un \u012bpa\u0161\u012bbas at\u0161\u0137iras atkar\u012bb\u0101 no oglek\u013ca satura, proporcijas, morfolo\u0123ijas un izmantoto oglek\u013ca avotu formas.<\/p>\n
Reakcijas saist\u012b\u0161ana ir efekt\u012bva metode t\u0101du keramikas materi\u0101lu ra\u017eo\u0161anai k\u0101 ugunsiztur\u012bgie materi\u0101li, porainie filtr\u0113jo\u0161ie elementi un nodilumiztur\u012bgas deta\u013cas, piem\u0113ram, meh\u0101niskie bl\u012bv\u0113jumi un gult\u0146i.<\/p>\n
RB SiC ir \u0101rk\u0101rt\u012bgi iztur\u012bgs un uzticams materi\u0101ls, kas lieliski piem\u0113rots da\u017e\u0101d\u0101m ekspluat\u0101cijas vid\u0113m. Pateicoties zemajam siltuma izple\u0161an\u0101s koeficientam, \u0161is materi\u0101ls ir ide\u0101li piem\u0113rots lietojumiem, kuros nepiecie\u0161ama prec\u012bza izm\u0113ru stabilit\u0101te, piem\u0113ram, s\u016bk\u0146os, gult\u0146os un pl\u016bsmas regul\u0113\u0161anas drosel\u0113s. Turkl\u0101t \u0161o daudzpus\u012bgo materi\u0101lu var izmantot ar\u012b pusvad\u012bt\u0101ju ra\u017eo\u0161anas iek\u0101rtu deta\u013cu izgatavo\u0161anai, piem\u0113ram, pl\u0101t\u0146u apstr\u0101des deta\u013c\u0101m.<\/p>\n
Reakcijas ce\u013c\u0101 saist\u012btais sil\u012bcija karb\u012bds (RBSC) ir univers\u0101ls keramikas materi\u0101ls, no kura var izgatavot sare\u017e\u0123\u012btas formas profesion\u0101lai un r\u016bpnieciskai lieto\u0161anai. RBSC izce\u013cas ar izcilu nodilumiztur\u012bbu un zemu izple\u0161an\u0101s koeficientu, k\u0101 ar\u012b ar izcil\u0101m elektriskaj\u0101m \u012bpa\u0161\u012bb\u0101m.<\/p>\n
RBSC tiek ra\u017eots, infiltr\u0113jot porainas sil\u012bcija karb\u012bda sagataves ar \u0161\u0137idro sil\u012bciju. T\u0101d\u0113j\u0101di tiek ieg\u016bta keramika ar necaurlaid\u012bgu strukt\u016bru, kas ir iztur\u012bga pret vid\u0113ji kod\u012bgiem un sk\u0101biem \u0161\u0137idrumiem, k\u0101 ar\u012b viegliem og\u013c\u016bde\u0146ra\u017eiem. Turkl\u0101t t\u0101 necaurlaid\u012bgais sast\u0101vs un virsmas tekst\u016bra samazina berzi, t\u0101d\u0113j\u0101di pagarinot deta\u013cas kalpo\u0161anas laiku, un t\u0101 ir viegla un stingra, kas to padara piem\u0113rotu kosmiskajiem teleskopiem, kuriem ir noteikti kravas svara ierobe\u017eojumi; t\u0101s virsmas augst\u0101 dimensiju stabilit\u0101te v\u0113l vair\u0101k palielina \u0161\u012b materi\u0101la v\u0113rt\u012bbu.<\/p>\n
Reakcijas ce\u013c\u0101 saist\u012btais SiC ir \u013coti iztur\u012bgs pret \u0137\u012bmisko koroziju, t\u0101p\u0113c tas ir ide\u0101li piem\u0113rots vid\u0113m, kur\u0101s tiek izmantoti koroz\u012bvi materi\u0101li. Turkl\u0101t t\u0101 zem\u0101 siltuma izple\u0161an\u0101s un iztur\u012bba \u013cauj tam iztur\u0113t ekstrem\u0101las temperat\u016bras.<\/p>\n
Reakcijas saist\u012b\u0161anas proces\u0101 izkaus\u0113ts sil\u012bcijs tiek iesmidzin\u0101ts porain\u0101 oglek\u013ca materi\u0101l\u0101, kas ir sabl\u012bv\u0113ts v\u0113lam\u0101s deta\u013cas form\u0101, kur tas p\u0113c tam rea\u0123\u0113 ar oglek\u013ca molekul\u0101m, veidojot sil\u012bcija karb\u012bdu.<\/p>\n
P\u0113t\u012bjumos ir noskaidrots, ka RBSC keramikas lieces iztur\u012bba, elast\u012bbas modulis un porain\u012bba ir atkar\u012bgi no oglek\u013ca avota materi\u0101la satura un proporcijas. Pien\u0101c\u012bgas grad\u0101cijas pan\u0101k\u0161ana gan attiec\u012bb\u0101 uz oglek\u013ca avotu, gan morfolo\u0123iju iev\u0113rojami uzlabo ekspluat\u0101cijas r\u0101d\u012bt\u0101jus; tas nodro\u0161ina br\u012bvo SiC da\u013ci\u0146u vienm\u0113r\u012bgu sadal\u012bjumu bl\u012bvi sak\u0101rtot\u0101 mikrostrukt\u016br\u0101 un galaproduktu izcilas \u012bpa\u0161\u012bbas.<\/p>\n
<\/p>","protected":false},"excerpt":{"rendered":"
Reaction Bonded SiC – Optimal Performance for Extreme Conditions Reaction Bonded SiC (RBSC) is a dense ceramic material 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-361","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\/361","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=361"}],"version-history":[{"count":3,"href":"https:\/\/siliconcarbideceramic.net\/lv\/wp-json\/wp\/v2\/posts\/361\/revisions"}],"predecessor-version":[{"id":383,"href":"https:\/\/siliconcarbideceramic.net\/lv\/wp-json\/wp\/v2\/posts\/361\/revisions\/383"}],"wp:attachment":[{"href":"https:\/\/siliconcarbideceramic.net\/lv\/wp-json\/wp\/v2\/media?parent=361"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/lv\/wp-json\/wp\/v2\/categories?post=361"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/lv\/wp-json\/wp\/v2\/tags?post=361"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}