Umlinganiselo woxinaniso
Idatha esuka kwipycnometer yemilinganiselo yoxinaniso kwisampulu ecocekileyo (iBrass neZirconia) kunye neesampuli ezithotyiweyo ezigcinwe kuma-300 °C kunye nama-600 °C.
Iisampulu zeseramikhi zigcine umlinganiselo woxinaniso ongaguqukiyo kwiisampulu ezicocekileyo nezithotyiweyo (300 °C kunye nama-600 °C).Oku kuziphatha kulindeleke yiZirconia ngenxa ye-electrovalent bonding yezinto ezibolekayo kwiikhemikhali kunye nokuzinza kwesakhiwo.
Izinto ezisekelwe kwiZirconia zithathwa njengezinye zezona oxide zizinzileyo kwaye zibonakaliswe ngokuthe ngcembe ukubola kumaqondo obushushu aphakamileyo asondele kwi-1700 °C.Ke ngoko, ukusebenzisa i-ceramic centerpost kwizicelo zobushushu obuphezulu kunokuba lukhetho lobulumko, nangona ukubunjwa kwe-sintered.
Ukuskena i-Electron Microscopy
■ Umfanekiso wesi-3
Icala lasekhohlo libonisa iisampulu zentsimbi ze-pristine kunye ne-600 °C kwaye icala lasekunene libonisa i-ceramic pristine kunye ne-600 °C.
Umzobo wesithathu ubonisa umfanekiso wesombululo esiphezulu seesampuli ezipolishiweyo nezichotshiweyo ezicocekileyo nezithotyiweyo.Njengoko kunokubonwa, akukho bungqina bokuthotywa kweesampuli ze-ceramic (imifanekiso yesandla sokunene).Iisampuli zinesakhiwo esifanayo somzimba esiboleka ukuzinza kwesampulu ye-ceramic kwiqondo lokushisa eliphezulu.Kwelinye icala sibona utshintsho olugqithisileyo kwimopholoji yomphezulu kwiisampulu zobhedu ezonakeleyo.Umphezulu wesampulu yobhedu wonakele ubonisa i-oxidation enzima.Ukwakheka komzimba womaleko we-oxide kusenokwenzeka ukuba kube negalelo kutshintsho kuxinaniso lwesampulu yobhedu.