{"id":154,"date":"2022-10-24T18:46:27","date_gmt":"2022-10-24T10:46:27","guid":{"rendered":"https:\/\/advance-ceramics.com\/?p=154"},"modified":"2023-08-18T12:50:29","modified_gmt":"2023-08-18T04:50:29","slug":"reakcijas-saistitais-silicija-karbids","status":"publish","type":"post","link":"https:\/\/advance-ceramics.com\/lv\/reaction-bonded-silicon-carbide\/","title":{"rendered":"Reakcijas saist\u012btais sil\u012bcija karb\u012bds"},"content":{"rendered":"

Reakcijas saist\u012btais sil\u012bcija karb\u012bds jeb sisic ir sil\u012bcija karb\u012bda keramikas veids, ko ra\u017eo \u0137\u012bmisk\u0101 reakcij\u0101 starp porainu oglekli un izkaus\u0113tu sil\u012bciju. Tas ir sp\u0113c\u012bgs, iztur\u012bgs un viegls materi\u0101ls, ko izmanto da\u017e\u0101diem lietojumiem. \u0160o materi\u0101lu parasti izmanto elektroniskaj\u0101s iek\u0101rt\u0101s, kr\u0101sn\u012bs, kalnr\u016bpniec\u012bb\u0101 utt. Lai uzzin\u0101tu vair\u0101k par RBSiC, \u0161aj\u0101 rakst\u0101 sniegts p\u0101rskats par \u0161\u0101 materi\u0101la izveides procesu un pielietojumu.<\/p>\n

siziskais sil\u012bcijs ir alternat\u012bva krist\u0101liskajam sil\u012bcijam, un to var izmantot vair\u0101kos lietojumos. T\u0101 \u012bpa\u0161\u012bbas ir augsta ciet\u012bba, augsta nodilumiztur\u012bba un zems berzes koeficients. Tas ir piem\u0113rots ar\u012b visp\u0101r\u0113jiem darba apst\u0101k\u013ciem, lai gan nav piem\u0113rots vid\u0113, kur\u0101 ir tendence uz sp\u0113c\u012bgu s\u0101rmu vai fluor\u016bde\u0146ra\u017esk\u0101bes iedarb\u012bbu. Materi\u0101lu ra\u017eo, rea\u0123\u0113jot sil\u012bcijam un ogleklim vakuumsa\u0137epin\u0101\u0161anas kr\u0101sn\u012b 1500 gr\u0101du temperat\u016br\u0101 p\u0113c F\u0101renheita. reakcijas saist\u012btais sik rea\u0123\u0113 ar saistvielu, lai ieg\u016btu sakaus\u0113jumu, kam piem\u012bt izcilas keramisk\u0101s \u012bpa\u0161\u012bbas. Sil\u012bcija karb\u012bda keramikas elementu sast\u0101vs var at\u0161\u0137irties atkar\u012bb\u0101 no saistvielas un sil\u012bcija satura. V\u0113lams ir aptuveni 100:3 sil\u012bcija karb\u012bda da\u013ci\u0146u un saistvielas mais\u012bjums. reakcijas saist\u012btais sil\u012bcija karb\u012bds ir \u013coti univers\u0101ls materi\u0101ls, kam piem\u012bt unik\u0101las meh\u0101nisk\u0101s un termisk\u0101s \u012bpa\u0161\u012bbas. Tas ir ide\u0101li piem\u0113rots visda\u017e\u0101d\u0101kajiem lietojumiem, s\u0101kot no augstsprieguma baro\u0161anas avotiem l\u012bdz elektriskajiem transportl\u012bdzek\u013ciem, invertoriem za\u013c\u0101s ener\u0123ijas ra\u017eo\u0161anai, r\u016bpnieciskaj\u0101m motoru piedzi\u0146\u0101m un viedt\u012bkliem.<\/p>\n

P\u0113t\u012bjum\u0101 tika p\u0113t\u012bta ar\u012b mikrooglek\u013ca un nanooglek\u013ca pulveru ietekme uz materi\u0101la no\u0146em\u0161anas \u0101trumu, dzirkste\u013cspraugu un virsmas raupjumu. \u0160ie tr\u012bs faktori ir galvenie faktori, kas ietekm\u0113 ar reakciju saist\u012bt\u0101 sil\u012bcija karb\u012bda virsmas raupjumu. Papildus izm\u0113ram liela noz\u012bme materi\u0101la no\u0146em\u0161anas \u0101trum\u0101 ir ar\u012b oglek\u013ca pulveru koncentr\u0101cijai. sil\u012bcija karb\u012bda keramika ir \u013coti stiprs un iztur\u012bgs materi\u0101ls, kas nodro\u0161ina izcilu nodilumiztur\u012bbu un augstu iztur\u012bbu. Turkl\u0101t rbsic ir viegls materi\u0101ls un ir \u013coti rentabls. T\u0101 lielisk\u0101s meh\u0101nisk\u0101s \u012bpa\u0161\u012bbas padara to ide\u0101li piem\u0113rotu izmanto\u0161anai r\u016bpniec\u012bb\u0101. Papildus iztur\u012bbai reakcijas saist\u012btais sil\u012bcija karb\u012bds ir ar\u012b lieliski iztur\u012bgs pret karstumu un koroziju. \u0161aj\u0101 izgudrojum\u0101 izmantot\u0101s saistvielas da\u013ci\u0146u izm\u0113rs v\u0113lams no 5 mm l\u012bdz 50 mm, kas nov\u0113r\u0161 sliktu sajauk\u0161anos ar sil\u012bcija karb\u012bda da\u013ci\u0146\u0101m. Da\u013ci\u0146u diametru m\u0113ra ar l\u0101zera difrakcijas izkliedi. Ieg\u016btajam produktam ir granulveida strukt\u016bra, kas ir piem\u0113rota pild\u012bjumam da\u017e\u0101dos lietojumos. reakcijas saistviela sic tika p\u0113t\u012bta, izmantojot SEM un citas metodes. Paraugs tika sagatavots, veidojot tr\u012bs paraugus, katru no tiem katr\u0101 no trim lod\u0113\u0161anas nosac\u012bjumiem. P\u0113c tam l\u016bzuma virsma tika raksturota, izmantojot sken\u0113jo\u0161o elektronu mikroskopu (SEM). ar SEM veikt\u0101 lod\u0113t\u0101 SiC\/Zr4 savienojuma anal\u012bze par\u0101d\u012bja, ka amorfais pildviela TiZrNiCu sp\u0113j savienot SiC un Zr4 sakaus\u0113jumu. Lod\u0113\u0161anas \u0161uv\u0113 par\u0101d\u012bj\u0101s b-Ti f\u0101ze, kas, iesp\u0113jams, ir saist\u012bta ar Ni un Cu kl\u0101tb\u016btni savienojum\u0101.<\/p>\n

Sizikas unik\u0101l\u0101s meh\u0101nisk\u0101s un termisk\u0101s \u012bpa\u0161\u012bbas padara to par v\u0113lamu materi\u0101lu da\u017e\u0101diem lietojumiem, s\u0101kot no augstsprieguma baro\u0161anas avotiem l\u012bdz elektriskajiem transportl\u012bdzek\u013ciem, za\u013c\u0101s ener\u0123ijas invertoriem, r\u016bpnieciskaj\u0101m motoru piedzi\u0146\u0101m un viedt\u012bkliem. \u0160is materi\u0101ls ir pier\u0101d\u012bjis sevi vispras\u012bg\u0101kaj\u0101s vid\u0113s. reakcijas saist\u012bt\u0101 sil\u012bcija karb\u012bda \u0137\u012bmiskais sast\u0101vs rea\u0123\u0113 ar nelielu daudzumu sil\u012bcija karb\u012bda, veidojot iztur\u012bgu keramikas materi\u0101lu. \u0160is materi\u0101ls ir iztur\u012bgs un sp\u0113j absorb\u0113t lielu siltuma daudzumu. \u0160\u012b materi\u0101la augst\u0101 termisk\u0101 un oksid\u0101cijas iztur\u012bba padara to par daudzsolo\u0161u termostrukt\u016bras materi\u0101lu izmanto\u0161anai augstas temperat\u016bras deta\u013c\u0101s. Tom\u0113r, ja ir j\u0101ra\u017eo lieli komponenti, ir nepiecie\u0161amas savieno\u0161anas tehnolo\u0123ijas, lai to pan\u0101ktu. Parasti dif\u016bzijas savieno\u0161anas metod\u0113s komponentu savieno\u0161anai izmanto met\u0101la starpsl\u0101\u0146us. Tom\u0113r \u0161\u012bs metodes ne\u013cauj detaliz\u0113ti nov\u0113rot savienot\u0101 apgabala mikrostrukt\u016bru. Lai atrisin\u0101tu \u0161o probl\u0113mu, m\u0113s izmantoj\u0101m fokus\u0113to jonu staru sist\u0113mu, lai sagatavotu TEM paraugus no savienotajiem apgabaliem.RB-SiC reakcijas savieno\u0161anas process ir \u013coti daudzpus\u012bga tehnolo\u0123ija, ar kuru var izveidot porainus sil\u012bcija karb\u012bda keramikas sl\u0101\u0146us uz bl\u012bva substr\u0101ta. Kod\u0113\u0161anas procesa d\u0113\u013c \u0161im materi\u0101lam piem\u012bt augsta dopanta selektivit\u0101te. Turkl\u0101t sil\u012bcija karb\u012bda daudzsl\u0101\u0146u veido\u0161anai izmanto divpak\u0101pju kodin\u0101\u0161anas proced\u016bru. sisiskais process ietver divu vai vair\u0101ku sil\u012bcija karb\u012bda gabalu reakciju ar pl\u0101nu TiC\/Si lentes starpsl\u0101ni. P\u0113c tam \u0161os materi\u0101lus ar mikrovi\u013c\u0146iem uzkars\u0113 l\u012bdz temperat\u016brai, kur\u0101 notiek cietvielu izspie\u0161anas reakcijas.<\/p>\n

\"Reakcijas<\/a><\/p>","protected":false},"excerpt":{"rendered":"

Reaction bonded silicon carbide, or sisic, is a type of silicon carbide ceramic that is manufactured through a chemical reaction between porous carbon and molten silicon. It is a strong, durable, and lightweight material that is used for a variety of applications. This material is commonly used in electronic equipment,kiln,mining and so on. To learn… Read More »Reakcijas saist\u012btais sil\u012bcija karb\u012bds<\/span><\/a><\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"off","neve_meta_content_width":70,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","footnotes":""},"categories":[14],"tags":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/advance-ceramics.com\/lv\/wp-json\/wp\/v2\/posts\/154"}],"collection":[{"href":"https:\/\/advance-ceramics.com\/lv\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/advance-ceramics.com\/lv\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/advance-ceramics.com\/lv\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/advance-ceramics.com\/lv\/wp-json\/wp\/v2\/comments?post=154"}],"version-history":[{"count":7,"href":"https:\/\/advance-ceramics.com\/lv\/wp-json\/wp\/v2\/posts\/154\/revisions"}],"predecessor-version":[{"id":207,"href":"https:\/\/advance-ceramics.com\/lv\/wp-json\/wp\/v2\/posts\/154\/revisions\/207"}],"wp:attachment":[{"href":"https:\/\/advance-ceramics.com\/lv\/wp-json\/wp\/v2\/media?parent=154"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/advance-ceramics.com\/lv\/wp-json\/wp\/v2\/categories?post=154"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/advance-ceramics.com\/lv\/wp-json\/wp\/v2\/tags?post=154"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}