Emakethe, sijwayelene kakhulu ngezinto ezikhethekile zobumba: i-silicon carbide, i-alumina, zirtia, silicon nitride. Ukufuna okuphelele kwemakethe, hlaziya inzuzo yalezi zinhlobo eziningana zezinto zokwakha.
I-Silicon Carbide inezinzuzo zentengo eshibhile, ukumelana nokuguguleka okuhle, amandla aphezulu, ubunzima obukhulu buhle kakhulu ku-oxidize, kunzima ukona. I-Alumina ingekho eshibhile, futhi inqubo yokulungiselela yezinto zokwenziwa kwempuphu ikhule kakhulu, kanti i-zirconia ne-silicon nitrous oxide zinobunzima obusobala kulokhu, futhi kungenye yamabhodlela anciphisa ukuthuthukiswa kwezimbili ezimbili. I-Silicon Nitride, ikakhulukazi, ibiza kakhulu.
Ngokuya ngokusebenza, yize amandla, ubulukhuni kanye nezinye izakhiwo zemishini ze-silicon nitride ne-zirconia zingcono kakhulu kune-alumina, kubonakala sengathi ukusebenza kwezindleko kufanelekile, kodwa empeleni kunezinkinga eziningi. Okokuqala kusuka eZirconia, kunobulukhuni obuphakeme, isizathu sokuba khona kwe-stabilizer, kepha ubunzima bawo obuphezulu buye buzwela isikhathi, akunakusetshenziswa ngokungathi sína isikhathi esingafanele ukuthuthukiswa okungalungile kwe-oxidation, kufanele kushiwo ukuthi yincane kunabo bonke abathathu emakethe. Kanye ne-silicon nitride, futhi yi-ceramic ethandwayo eminyakeni engamashumi amabili edlule, amandla anqabile avinjelwe avery kanye nokunye ukusebenza okuphelele kulungile, kepha ukusetshenziswa kwezinga lokushisa kuphansi kunezinye ezimbili; Inqubo yokulungiselela yeSilicon NITride futhi iyinkimbinkimbi kakhulu kune-alumina, yize ukusetshenziswa kwesigaba se-silicon nitride kungcono kakhulu kune-zirconia, kepha ukuqhathanisa okuphelele akusekho kuhle njengo-alumina.
Ukusebenza okungabizi, okuzinzile, ukuhlukaniswa komkhiqizo kwe-Alumina ceramics kwaba ukusetshenziswa kwangaphambilini, futhi kusetshenziswe ama-ceramics akhethekile akhethekile.
Isikhathi Seposi: Jan-22-2022