Marka silikoon carbide crystal koraan, "deegaanka" ee isdhexgalka koritaanka u dhexeeya xarunta axial ee crystal iyo cidhifku waa ka duwan yahay, si diiqada crystal ee cidhifku kordho, iyo cidhifka crystal waa ay fududahay in la soo saaro "ciladaad dhamaystiran" sababtoo ah. saamaynta graphite joojinta giraanta "kaarboon", sida loo xalliyo dhibaatada cirifka ama loo kordhiyo aagga waxtarka leh ee xarunta (in ka badan 95%) waa mawduuc farsamo oo muhiim ah.
Maaddaama cilladaha macro-ga ah sida "microtubules" iyo "isku-darka" ay si tartiib tartiib ah u xakameynayaan warshadaha, caqabadaha silikoon carbide crystals si ay "u koraan, dheer iyo qaro weyn, oo u koraan", cirifka "ciladaha dhamaystiran" ayaa si aan caadi ahayn caan u ah, iyo korodhka dhexroorka iyo dhumucda kiristaalo carbide silicon, cidhifka "ciladaha dhamaystiran" waxaa lagu dhufan doonaa by dhexroor square iyo dhumucdiisuna.
Isticmaalka tantalum carbide TaC daahan waa in la xalliyo dhibaatada cirifka iyo hagaajinta tayada kobaca crystal, taas oo ah mid ka mid ah jihooyinka farsamada asaasiga ah ee "si dhakhso ah u koraya, koraya dhumucda iyo koraya". Si kor loogu qaado horumarinta tignoolajiyada warshadaha iyo xallinta ku-tiirsanaanta "soo dejinta" ee alaabta muhiimka ah, Hengpu waxay horumarisay tignoolajiyada daahan tantalum carbide (CVD) waxayna gaartay heer caalami ah.
Tantalum carbide TaC daahan, marka laga eego aragtida xaqiiqadu maaha mid adag, oo leh sintering, CVD iyo hababka kale waa sahlan tahay in la gaaro. Habka Sintering, isticmaalka tantalum carbide budada ama horudhac, ku darida maaddooyinka firfircoon (guud ahaan biraha) iyo wakiilka isku xidhka (guud ahaan silsiladda polymer dheer), dahaarka leh dusha sare ee substrate garaafyada sintered heerkulka sare. Habka CVD, TaCl5+H2+CH4 waxaa lagu shubay oogada garaafyada cabbirka 900-1500℃.
Si kastaba ha ahaatee, xuduudaha aasaasiga ah sida hanuuninta crystal of tantalum carbide dhigaalka, dhumucdiisuna filimka lebis, sii daayo stress u dhexeeya daahan iyo matrix graphite, dildilaaca dusha, iwm, waa mid aad u adag. Gaar ahaan jawiga koritaanka sic crystal, nolol adeeg oo deggan ayaa ah halbeegga udub-dhexaadka ah, waa tan ugu adag.
Waqtiga boostada: Jul-21-2023