Qarnigii 21aad, iyada oo horumarinta sayniska iyo tignoolajiyada, macluumaadka, tamarta, agabka, injineernimada noolaha ayaa noqday afarta tiir ee horumarinta wax soo saarka bulshada maanta, silicon carbide ay sabab u tahay guryaha kiimikada deggan, conductivity kulaylka sare, coefficient of ballaarinta kulaylka cufnaanta yar yar, cufnaanta yar yar, caabbinta xirashada wanaagsan, engegnaanta sare, xoogga farsamada sare, caabbinta kiimikada iyo sifooyinka kale, horumarinta degdega ah ee berrinkii alaabta, Si ballaaran loo isticmaalo in kubada dhoobada, valves, qalabka semiconductor, gyro, qalabka cabbirka, aerospace iyo beeraha kale.
Ceramics Silicon carbide ayaa la sameeyay ilaa 1960-yadii. Markii hore, silikoon carbide waxaa inta badan loo isticmaali jiray qalabka wax lagu shiido iyo refractories. Wadamada aduunka oo dhami waxay muhiimad wayn siiyaan warshadaynta dhoobada horumarsan, hadda kuma qanacsana diyaarinta dhoobada dhaqameed ee silikoon carbide, wax soo saarka shirkadaha dhoobada ee tignoolajiyada sare ayaa si dhakhso ah u horumariya, gaar ahaan wadamada horumaray. Sanadihii la soo dhaafay, dhoobada wejiyada badan ee ku salaysan ceramics SIC ayaa soo muuqday midba midka kale, hagaajinta adkaanta iyo xoogga alaabta monomer. Silicon carbide afarta qaybood ee ugu waaweyn ee codsiga, yacni, ceramics functional, maaddooyinka refractory horumarsan, abrasives iyo alaabta ceeriin biraha.
Ceramics Silicon carbide waxay leeyihiin iska caabin aad u fiican
Silicon carbide ceramics alaabtan waa la daraaseeyay oo la go'aamiyay. Iska caabbinta xirashada ceramics silikoon carbide alaabtani waxay u dhigantaa 266 jeer birta manganese, oo u dhiganta 1741 jeer ee birta chromium sare leh. Iska caabbinta xirashada ayaa aad u wanaagsan. Weli waxay naga badbaadin kartaa lacag badan. Silicon carbide ceramics si joogto ah ayaa loo isticmaali karaa in ka badan toban sano.
Ceramics Silicon carbide waxay leeyihiin xoog sare, qallafsanaan sare iyo miisaan fudud
Sida nooc cusub oo maaddada ah, isticmaalka dhoobada silikoon carbide ceramics xoogga alaabtani waa mid aad u sarreeya, qallafsanaanta sare, miisaanka sidoo kale waa mid aad u fudud, sida silikoon carbide ceramics ee isticmaalka, rakibidda iyo bedelida kor ku xusan waxay noqon doontaa mid aad u habboon.
Derbiga gudaha ee dhoobada silikoon carbide waa siman oo ma xannibo budada
Silicon carbide ceramics alaabtan ayaa la shiday ka dib heerkulka sare, sidaas darteed qaab dhismeedka dhoobada silikoon carbide ceramics waa mid cufan, dusha sare waa siman yahay, quruxda isticmaalka ayaa noqon doonta mid aad u wanaagsan, sidaas darteed loo isticmaalo qoyska, quruxda ayaa noqon doonta mid aad u wanaagsan.
Qiimaha ceramics carbide silicon waa mid hooseeya
Qiimaha warshadaynta silikoon carbide ceramics lafteedu waa mid aad u yar, markaa uma baahnid inaan iibsano qiimaha ceramics carbide silicon carbide waa mid aad u badan, sidaas darteed qoyskeena, laakiin sidoo kale waxay badbaadin kartaa lacag badan.
Codsiga dhoobada Silicon carbide:
Kubbada dhoobada ee Silicon carbide
Kubbada dhoobada ee Silicon carbide waxay leedahay sifooyin farsamo oo aad u wanaagsan, iska caabin oksaydh oo aad u fiican, iska caabin sare oo iska caabin ah iyo isugeyn hoose. Kubbada dhoobada Silicon carbide ee heerkulka sare leh, walxaha dhoobada caadiga ah ee 1200 ~ 1400 darajo Celsius ayaa si weyn hoos loogu dhigi doonaa, iyo silikoon carbide at 1400 digrii Celsius xoogga foorarsiga ayaa weli lagu hayaa heer sare oo ah 500 ~ 600MPa, markaa heerkulka shaqadu wuxuu gaari karaa 1600 ~ 1700 darajo Celsius.
Qalab isku dhafan oo silikoon carbide ah
Isku-dhafka 'Silicon carbide matrix composites' (SiC-CMC) ayaa si weyn loogu isticmaalay garoonka hawada sare qaab dhismeedka kulaylka heerkulka sare sababtoo ah adkaantooda sare, xoog sare iyo iska caabin oksaydh oo aad u fiican. Habka diyaarinta ee SiC-CMC waxaa ka mid ah preforming fiber, daaweynta heerkulka sare, daahan mesophase, cufnaanta matrix iyo daawaynta ka dib. Fiberka kaarboonka ee xoogga badan waxa uu leeyahay tabar sare iyo adayg wanaagsan, jidhka la sii diyaariyeyna waxa uu leeyahay sifooyin farsamo oo wanaagsan.
Daahan mesophase (taas oo ah, tignoolajiyada interface) waa tignoolajiyada muhiimka ah ee habka diyaarinta, diyaarinta hababka daahan mesophase waxaa ka mid ah uumiga kiimikada (CVI), kaydinta uumiga kiimikada (CVD), habka sol-sol (Sol-gcl), polymer polymer Habka dildilaaca impregnation (PLP), ugu habboon diyaarinta isku dhafan ee silikoon carbide matrix waa habka CVI iyo habka PIP.
Maaddooyinka dahaarka ee wejiga waxaa ka mid ah kaarboonka pyrolytic, boron nitride iyo boron carbide, oo ay ka mid yihiin boron carbide oo ah nooc ka mid ah daahan iska caabbinta oksaydhka ee wejiga ayaa la bixiyay si aad iyo aad u badan. SiC-CMC, oo inta badan loo isticmaalo xaaladaha oksaydhka muddo dheer, waxay sidoo kale u baahan tahay in la maro daaweynta iska caabinta oksaydhka, taas oo ah, lakabka carbide silicon cufan oo dhumucdiisu tahay 100μm ayaa lagu kaydiyaa dusha alaabta iyadoo loo marayo habka CVD si loo hagaajiyo caabbinta oksaydhka heerkulka-sare.
Waqtiga boostada: Febraayo-14-2023