Izinto zeCeramic ezichaneke kakhulu: i-silicon carbide, i-alumina, i-zirconia, i-silicon nitride

Kwimarike, siqhelene ngakumbi nezinto ezikhethekileyo ze-ceramic: i-silicon carbide, i-alumina, i-zirconia, i-silicon nitride.Imfuno yemarike ebanzi, hlalutya inzuzo yezi ntlobo zininzi zezinto.
I-silicon carbide inezibonelelo zexabiso eliphantsi, ukumelana nokukhukuliseka okulungileyo, ukomelela okuphezulu, eyona nto ingalunganga kulula ukuyikhupha, kunzima ukuyifaka.I-alumina yeyona nto inexabiso eliphantsi, kwaye inkqubo yokulungiselela umgubo wezinto ezikrwada ikhule kakhulu, ngelixa i-zirconia kunye ne-silicon nitrous oxide zinemiqobo ecacileyo kule nkalo, ekwayenye yeengxaki ezithintela uphuhliso kwezi zimbini zokugqibela.I-silicon nitride, ngokukodwa, iyona nto ibiza kakhulu.
Ngokumalunga nokusebenza, nangona amandla, ukuqina kunye nezinye iimpawu ze-silicon nitride kunye ne-zirconia zingcono kakhulu kune-alumina, kubonakala ngathi ukusebenza kweendleko kufanelekile, kodwa ngokwenene kukho iingxaki ezininzi.Okokuqala ukusuka kwi-zirconia, inokuqina okuphezulu, isizathu kubukho be-stabilizer, kodwa ubunzima bayo obuphezulu bunobuzaza bexesha, alinakusetyenziswa kwiqondo lokushisa eliphezulu kunye nexesha lobushushu begumbi lithintela ngokungqongqo uphuhliso olungalunganga lwe-oxidation, kufuneka kube. uthe yeyona incinci kwezintathu emarikeni.Kwaye i-silicon nitride, ikwayi-ceramic ethandwayo kule minyaka ingamashumi amabini idlulileyo, ukomelela kwe-thermal ukumelana nokunxitywa kunye nokunye ukusebenza okubanzi kulungile, kodwa ukusetyenziswa kobushushu kungaphantsi kunezinye ezimbini;Inkqubo yokulungiselela i-silicon nitride nayo iyinkimbinkimbi ngakumbi kune-alumina, nangona ukusetyenziswa kwesigaba se-silicon nitride kungcono kakhulu kune-zirconia, kodwa ukuthelekisa ngokubanzi akukabi kuhle njenge-alumina.
Ukusebenza okungabizi kakhulu, okuzinzileyo, ukuhlukahluka kwemveliso yeeseramikhi ze-alumina yaba yeyona nto isetyenziswayo, kwaye sele isetyenzisiwe kwiiseramikhi ezikhethekileyo ezikhoyo.