Isicelo kanye nezici ze-silicon carbide CVD enamathela

I-Silicon carbide (i-SiC) iwuhlobo lwempahla ye-ceramic enamandla okusebenza abanzi, enokusebenza okuhle kakhulu kwe-thermal, ukuzinza kwamakhemikhali kanye nokumelana nokushisa okuphezulu.Ukuze kuqhutshekwe nokuthuthukisa ukusebenza nobubanzi bokusetshenziswa kwe-silicon carbide, ubuchwepheshe be-chemical vapor deposition (CVD) bube yindlela ebalulekile yokulungisa i-silicon carbide coating.

I-silicon carbide CVD coating ingakha ungqimba oluvikelayo lomfaniswano nominyene kuma-substrates ahlukahlukene, futhi inezinhlobonhlobo zezakhiwo eziphakeme.Okokuqala, i-silicon carbide coating inobulukhuni obuphakeme kakhulu nokumelana nokugqoka, okungamelana ngempumelelo nokuguga nokuklwebheka futhi ivikele i-substrate ekugugeni nasekugqwaleni.Okwesibili, i-silicon carbide coating inokumelana nokushisa okuphezulu kakhulu futhi isengakwazi ukugcina amandla aphezulu emishini nokuzinza kwamakhemikhali ngaphansi kwemvelo yokushisa ephezulu.Lokhu kwenza i-silicon carbide CVD coating isetshenziswe kabanzi ku-aerospace, amandla, amakhemikhali nezinye izinkambu, njengendawo yokushisa yangaphakathi yodonga lwangaphakathi, izinzwa zegesi lokushisa eliphezulu kanye nezisetshenziswa zikagesi ezishisayo.

Ngaphezu kwalokho, i-silicon carbide coating nayo ine-conductivity enhle kakhulu ye-thermal kanye nezakhiwo zokufaka ugesi.I-Thermal conductivity isho ikhono lempahla lokuqhuba ukushisa, kanye nokusebenza okuphezulu kwe-thermal kwezingubo ze-silicon carbide CVD kuzenza zilungele izinhlelo zokusebenza zokulawula ukushisa, njengama-radiator namapayipi okushisa.Ukufakwa kukagesi kubhekisela ekusebenzeni kokufakwa kwempahla kokwamanje, futhi ukwahlukanisa okuhle kukagesi kwe-silicon carbide coating kukwenza kusetshenziswe kabanzi emishinini kagesi, njengongqimba lwamandla kagesi aphezulu kanye nokupakishwa kwe-elekthronikhi.

Lapho ulungiselela i-silicon carbide CVD coatings, amagesi angaphambili avamile ahlanganisa imithombo ye-silicon nemithombo ye-carbon efana ne-methane ne-silane.Lawa magesi akha ungqimba oluncane lwe-silicon carbide ebusweni be-substrate ngokusabela kwe-CVD.Ngokulungisa izimo zokusabela, njengezinga lokushisa, ukucindezela komoya kanye nokugeleza kwegesi, ukushuba, i-morphology kanye nezakhiwo zokumboza zingalawulwa.

Kafushane, i-silicon carbide CVD coating inenani lezinto eziphakeme, kufaka phakathi ubulukhuni obuphezulu, ukumelana nokugqoka, ukumelana nokushisa okuphezulu, ukuqhutshwa kwe-thermal kanye nokufakwa kukagesi.Lezi zakhiwo zenza i-silicon carbide coatings ibe nezinhlelo eziningi zokusebenza emikhakheni eminingi, kuhlanganise ne-aerospace, amandla, amakhemikhali kanye ne-electronics.Ngokuthuthuka okuqhubekayo kanye nokuthuthukiswa kobuchwepheshe be-CVD, ukusebenza kwe-silicon carbide coating kuzothuthukiswa nakakhulu, kunikeze amathuba amaningi okufaka izicelo eziningi emikhakheni eminingi.