Kwimarike, siqhelene ngakumbi nezixhobo ezikhethekileyo zeseramikhi: isilicon carbide, ialumina, i-zirconia, isilicon nitride. Imfuno epheleleyo yemarike, hlalutya inzuzo yezi ntlobo zininzi zezinto.
I-silicon carbide ineengenelo zexabiso eliphantsi, ukumelana nokukhukuliseka okuhle, amandla aphezulu, eyona ngxaki inkulu kulula ukuyinyibilikisa, kunzima ukuyitshisa. I-Alumina yeyona ingabizi kakhulu, kwaye inkqubo yokulungiselela izinto ezikrwada zomgubo ivuthiwe kakhulu, ngelixa i-zirconia kunye ne-silicon nitrous oxide zineengxaki ezicacileyo kule nkalo, enye yeengxaki ezithintela uphuhliso lwezi zimbini zokugqibela. I-silicon nitride, ngakumbi, yeyona ibiza kakhulu.
Ngokuphathelele ukusebenza, nangona amandla, ukuqina kunye nezinye iimpawu zoomatshini ze-silicon nitride kunye ne-zirconia zingcono kakhulu kune-alumina, kubonakala ngathi ukusebenza kweendleko kufanelekile, kodwa eneneni kukho iingxaki ezininzi. Okokuqala kwi-zirconia, inobunzima obuphezulu, isizathu kukubakho kwe-stabilizer, kodwa ubunzima bayo obuphezulu buxhomekeke kwixesha, ayinakusetyenziswa kubushushu obuphezulu kwaye ubushushu begumbi buxhomekeke kwixesha elibi kakhulu ekuphuhlisweni kwe-oxidation, kufanele kuthiwe yeyona incinci kwezi zintathu kwimarike. Kwaye i-silicon nitride, ikwayi-ceramic ethandwayo kwiminyaka engamashumi amabini edlulileyo, amandla okutshisa obushushu angagugiyo kunye nokusebenza okubanzi kulungile, kodwa ukusetyenziswa kobushushu kuphantsi kunezinye ezimbini; Inkqubo yokulungiselela i-silicon nitride nayo iyinkimbinkimbi kune-alumina, nangona ukusetyenziswa kwesigaba se-silicon nitride kungcono kakhulu kune-zirconia, kodwa uthelekiso ngokubanzi alukabi luhle njenge-alumina.
Ukusebenza okungabizi kakhulu, okuzinzileyo, ukwahlukahluka kweemveliso ze-alumina ceramics kwaba yeyona nto isetyenziswa kakhulu, kwaye iye yasetyenziswa kwiiceramics ezikhethekileyo zangoku.
Ixesha lokuthumela: Jan-22-2022