Ziziphi iingenelo kunye neengxaki ze-silicon carbide xa kuthelekiswa ne-silicon nitride, i-aluminium oxide kunye ne-zirconia?

Eyona ngxaki inkului-silicon carbidekukuba kunzima ukwenza isono!
I-silicon nitride ibiza kakhulu!

Isiphumo sokuguqulwa kwesigaba kunye nokuqina kwe-zirconia asizinzanga kwaye ngamanye amaxesha siyasebenza. Nje ukuba le ngxaki isonjululwe, kungekuphela nje i-zirconia, lonke intsimi yeseramikhi inokuba nempumelelo!

I-Alumina ixhaphake kakhulu kwaye ixabisa kancinci, kwaye inokumelana kakuhle nobushushu.
I-Zirconia inokumelana nokuguguleka okungcono kune-alumina kwaye inobushushu obuphezulu, kodwa ukumelana kwayo nobushushu kukubi kune-alumina.
I-silicon nitride ineempawu ezintle ezibanzi ezifana nokumelana nokuguguleka kunye nokumelana nobushushu, kodwa ubushushu bokusetyenziswa buphantsi kunezinye ezimbini. Eyona ibiza kakhulu.
Iiceramics ze-alumina zezona zinto zisetyenziswa kakhulu ze-ceramic. Ixabiso eliphantsi, ukusebenza okuzinzileyo kunye neemveliso ezahlukeneyo. Imarike ngokuqinisekileyo yeyona alumina inkulu nenkulu, kutheni? Thelekisa ezi zimbini zokugqibela kwaye uya kuqonda.

Ithelekiswa kakhulu ngokwendlela esebenza ngayo kunye nexabiso. Emva koko ixabisa kancinci xa ithelekiswa nembono yemarike.
Ngokuphathelele ixabiso, i-alumina yeyona ingabizi kakhulu, kwaye inkqubo yokulungiselela izinto eziluhlaza zomgubo nayo ivuthiwe kakhulu. Ezi zimbini zokugqibela zineengxaki ezicacileyo kule nkalo, enye yeengxaki ezithintela uphuhliso lwezi zimbini zokugqibela.
Ngokuphathelele ukusebenza, iimpawu zoomatshini ezifana namandla kunye nokuqina kwe-silicon nitride kunye ne-zirconia zingcono kakhulu kunezo ze-alumina. Kubonakala ngathi ukusebenza kweendleko kufanelekile, kodwa eneneni kukho iingxaki ezininzi.
Ngokwembono ye-zirconia, inokuqina okuphezulu ngenxa yokubakho kwezinto ezizinzisayo, kodwa ukuqina kwayo okuphezulu kuxhomekeke kwixesha. Umzekelo, emva kokuba isixhobo se-zirconia sishiywe emoyeni ixesha elithile, siya kulahlekelwa kukuzinza kwaye ukusebenza kuya kwehla kakhulu okanye kuqhekeke! !! Ngaphezu koko, akukho phase i-metastable kubushushu obuphezulu, ngoko ke akukho kuqina okuphezulu. Ke ngoko, ukusetyenziswa kobushushu obuphezulu kunye nobushushu begumbi kunokuthintela kakhulu uphuhliso lwe-zirconia. Kufuneka kuthiwe yeyona incinci kwiimarike ezintathu.
Xa sithetha nge-silicon nitride, ikwayeyona nto idumileyo kwi-ceramic kwiminyaka engamashumi amabini edlulileyo, kodwa inkqubo yayo yokulungiselela imveliso egqityiweyo iyinkimbinkimbi kune-alumina, engcono kakhulu kune-zirconia, kodwa ayikalungi njenge-alumina.