Silicon nitride (SiC) waa ciid quartz, coke batroolka calcined (ama dhuxusha dhuxusha), qoryaha alwaax (wax soo saarka silikoon nitride cagaaran waxay u baahan tahay in lagu daro milix) iyo alaabta kale ee cayriin, iyada oo loo marayo foornada kuleylka korontada oo joogto ah smelter heerkul sarreeya. Giraan silikoon nitride xidhidh waa shey silikoon nitride ka samaysan walxo silikoon carbide ah. Haddaba maxay yihiin codsiyada muhiimka ah ee carbide silicon-ka fal-celin-celin ah iyo astaamaha shaabadda?
Codsiga muhiimka ah ee falcelinta sintaring silicon carbide:
1. Codsiga warshadaha wax soo saarka biraha waa isticmaalka caabbinta kulaylka nitride silicon nitride, xoog sare, conductivity kaamerada wanaagsan, caabbinta saamaynta, heerkulka sare joogto ah kulaylka tooska ah alaabta ceeriin, sida foornada jajabka taangiga. Saxaarada foornada hagaajinta, unugga aluminiumka elektiroonigga ah, dahaarka foornada dhalaalka naxaasta ah, qaanso foornada budada zinc, tuubada ilaalinta heerkulbeegga, iwm.
2. Codsiga warshadaha birta waxay isticmaashaa xoqidda nitride silicon. Iska caabbinta shoogga kulaylka, caabbinta naaxinta. Sababtoo ah kuleylkeeda wanaagsan ee kuleylka, waxaa loo isticmaalaa in lagu dahaadhiyo foornooyinka qarxa ee waaweyn iyo kuwa dhexdhexaadka ah si kor loogu qaado nolosha adeegga.
3. Warshadaha xooga saaridda biraha waxay isticmaashaa xoogga nitride silicon waa labaad ee birta dahabka ah, iska caabin xoog leh, waa iska caabin xoog leh, caabbinta xirashada sare ee dhuumaha, impeller centrifugal, qolka bamka, mashiinnada wareega, macdanta macdanta alaabta ceeriin ee ugu fiican, iska caabin xirasho wanaagsan. Nolosha adeegga caaggu waa 5 ilaa 20 jeer, waana mid ka mid ah alaabta ceeriin ee ugu habboon garoomada ciyaaraha ee diyaaradaha.
4. Codsiga isku-xidhka wareejinta kulaylka ee heerka wax-soo-saarka warshadaha ee qalabka dhismaha ee qurxinta dhoobada iyo qaybaha giraangiraha ciidda. Tilmaamaha kulaylka shucaaca iyo xoojinta qandhada sare, wax soo saarka iyo wax soo saarka ee foornada xaashida ma aha oo kaliya inay yareeyaan mugga foornada, laakiin sidoo kale waxay hagaajinayaan mugga kaydinta iyo tayada alaabta ee foornada, waxayna yareeyaan wakhtiga wax soo saarka, taas oo ah mid aan toos ahayn. walxaha loogu talagalay toogashada midabada dhoobada.
5. Codsiga ilaalinta deegaanka iyo heerka kaydinta tamarta ayaa leh kulayl wanaagsan iyo caabbinta kulaylka, kulaylku wuxuu badbaadiyaa 20%, isticmaalka shidaalka 20%, isticmaalka shidaalka 35%, waxtarka wax soo saarka ayaa kordhay 20-30%. Gaar ahaan, caabbinta xirashada tuubada bixinta biyaha ee loo isticmaalo warshadaynta macdanta ayaa 6 ilaa 7 jeer ka badan qalabka caadiga ah ee isku dhafan ee birta ah.
Calaamadaha giraanta shaabaddii silikoon carbide-ka fal-celin-ku-soo-baxsan:
1, caabbinta kulaylka
Sababtoo ah sifooyinka walxaha silikoon nitride, shaabadihii silikoon nitride waxay leeyihiin iska caabin heerkul sarreeya, iyo hababka kala duwan waxay leeyihiin noocyo kala duwan oo ah sifooyinka caabbinta kulaylka. Xirmooyinka silikoon nitride-ka falcelinta-ku-soo-baxsan waxaa laga dalban karaa 1300 darajo, iyo shaabadihii silikoon nitride-ka aan cadaadiska lahayn waxay gaari karaan 1600 darajo.
2. Iska caabin daxalka
Giraan silikoon nitride xidhidh ah ayaa laga codsan karaa aashitada xooggan iyo dabeecadda alkali, iyo saamaynta xidhiddu ma fududa in la yareeyo.
3, xidho iska caabin
Silicon carbide reaction-sintered giraannada shaabadeynta silikoon carbide si waafaqsan nidaamka kaararka gaar ah, si qorshuhu yahay mid aad u saxsan oo siman, oo ay weheliso caabbinta xirashada ee alaabta silikoon carbide, silikoon nitride siddooyinka shaabadda ayaa loo isticmaali karaa in la is xoqo. Tilmaamaha heerkulka sare ee joogtada ah si fudud uma dhimaan sifooyinka waxyeellada.
4. Ductility
Reactivity sintered silicon carbide alaabta ceeriin ilaa iyo inta ay jirto technology processing gaar ah, waxa loo rogi karaa noocyo kala duwan oo habab of embriyaha dhogorta, habaynta sare, si macaamiishu rabaan alaab.
Waqtiga boostada: Seb-11-2023