Ukulungiswa kanye nezakhiwo ze-silicon carbide ceramics ngokusila kokusabela

I-Silicon carbide (i-SiC) iyinhlanganisela ye-covalent eyakhiwe nge-carbon ne-silicon futhi yaziwa ngezakhiwo zayo ezinhle kakhulu, okuhlanganisa ukumelana nokuguguleka okuphezulu, ukumelana nokushaqeka kokushisa, ukumelana nokugqwala okunamandla kanye nokuqhuba okuphezulu kokushisa. Lezi zakhiwo zenza i-silicon carbide ibe yinto efanelekile yezinhlelo zokusebenza ezahlukahlukene ezimbonini eziningi, okuhlanganisa izindiza, ukukhiqizwa kwemishini, amakhemikhali kaphethroli, ukuncibilikisa insimbi kanye ne-elekthronikhi. Ifaneleke kakhulu ekukhiqizweni kwezingxenye ezingagugi kanye nezingxenye zesakhiwo ezishisa kakhulu. Ukuthuthukiswa kwe-silicon carbide ceramics e-reaction-sintered kuye kwadlala indima ebalulekile ekuthuthukiseni izinhlelo zokusebenza zezimboni zale nto eguquguqukayo.

Indlela yendabuko yokukhiqizai-silicon carbide ceramics eyenziwe nge-reaction-sinteredukusebenzisa i-silicon carbide powder ehlanganiswe nenani elincane le-carbon powder. Ingxube idlula ekusabeleni kwe-siliconization okushisa okuphezulu ukuze yakhe into eqinile ye-ceramic. Kodwa-ke, lo msebenzi wendabuko awunazo izinkinga zawo. Inqubo yokusila ibonakala ngokuhlala isikhathi eside, izinga lokushisa eliphezulu kanye nokusetshenziswa kwamandla aphezulu, okuholela ezindleleni zokukhiqiza eziphezulu. Njengoba izidingo zemboni zezimo ze-silicon carbide ceramic kanye namafomu ziba nzima kakhulu, ukulinganiselwa kwezindlela zendabuko kuya ngokuya kubonakala.

Eminyakeni yamuva nje, ukwethulwa kwama-nanopowders e-silicon carbide kube yisisombululo esithembisayo sokuthuthukisa izakhiwo ze-silicon carbide ceramics. Ukusebenzisa ama-nanopowders kungakhiqiza ama-ceramics anobukhulu obuphezulu obucwebezelayo kanye namandla aphezulu okuguquguquka. Kodwa-ke, izindleko ze-silicon carbide nanopowder ziphakeme kakhulu, ngokuvamile zidlula ama-yuan ayi-10,000 ngethani, okudala isithiyo esikhulu ekwamukelweni kabanzi kanye nokukhiqizwa okukhulu. Le nselele yezomnotho idinga ukuhlolwa kwezinto zokusetshenziswa ezihlukile kanye nezindlela zokwenza ukukhiqizwa kwama-silicon carbide ceramics kube lula futhi kube nezindleko eziphansi.

Ngaphezu kwalokho, ikhono lokukhiqiza izimo eziyinkimbinkimbi nezingxenye ezinkulu livula izindlela ezintsha zokusetshenziswa kwe-silicon carbide ceramic. Izimboni ezidinga imiklamo eyinkimbinkimbi nezinto zokusebenza okuphezulu zingazuza kule ndlela entsha yokulungiselela. Ukuguquguquka komklamo kanye nekhono lokukhiqiza ngobuningi be-silicon carbide ceramics esezingeni eliphezulu kungaholela ekuthuthukisweni okukhulu ezindaweni ezifana nezindiza kanye ne-elekthronikhi lapho ukusebenza kwezinto kubalulekile khona.