Hei momo rauemi uku, he kaha teitei te zirconium, he pakeke teitei, he ātete pai ki te kakahu, he ātete ki te waikawa me te kawakore, he ātete ki te pāmahana teitei me ētahi atu āhuatanga pai. Haunga te whakamahinga whānui i roto i te ao ahumahi, me te whanaketanga kaha o te umanga niho rūpahu i ngā tau tata nei, kua riro ngā uku zirconium hei rauemi niho rūpahu tino pea, ā, kua arohia e te tini o ngā kairangahau.
Tikanga whakapūmau
Ko te tikanga tuku iho o te whakamahana i te tinana mā te hihi wera, te kawe wera, te kawe wera, kia puta ai te wera mai i te mata o te zirconia ki roto, engari he kino ake te kawe wera o te zirconia i tērā o te alumina me ētahi atu rauemi uku. Hei ārai i te pakaru i puta mai i te ahotea wera, he puhoi te tere whakamahana tuku iho, ā, he roa te wā, ka roa ai te huringa whakaputa o te zirconia, ā, he nui hoki te utu whakaputa. I ngā tau tata nei, ko te whakapai ake i te hangarau tukatuka o te zirconia, te whakapoto i te wā tukatuka, te whakaiti i te utu whakaputa, me te whakarato i ngā rauemi uku zirconia niho mahi teitei kua noho hei kaupapa matua o te rangahau, ā, he tikanga tuku iho pai te whakamahana i roto i te ngaruiti.
Kua kitea kāore he rerekētanga nui o te mahi whakapūmau i roto i te ngaruiti me te mahi whakapūmau i te pēhanga hauhautanga ki te awe o te ātete hauhautanga me te ātete kakahu. Ko te take he rite te matotoru o te zirconia i whiwhihia mai i te mahi whakapūmau i roto i te ngaruiti ki te mahi whakapūmau tikanga, ā, he mahi whakapūmau matotoru ēnei e rua, engari ko ngā painga o te mahi whakapūmau i roto i te ngaruiti ko te iti o te pāmahana whakapūmau, te tere tere me te wā whakapūmau poto. Heoi, he puhoi te tere pikinga pāmahana o te mahi whakapūmau i roto i te pēhanga hauhautanga, he roa ake te wā whakapūmau, ā, ko te wā whakapūmau katoa he tata ki te 6-11 hāora. Ki te whakatauritea ki te mahi whakapūmau pēhanga noa, he tikanga whakapūmau hou te mahi whakapūmau i roto i te ngaruiti, he painga o te wā whakapūmau poto, te pai teitei me te penapena pūngao, ā, ka taea te whakapai ake i te hanganga moroiti o ngā uku.
E whakapono ana hoki ētahi tohunga ka taea e te zirconia te pupuri i te āhua tequartet metastable i muri i te sintering ngaruiti, nā te mea pea ka taea e te whakamahana tere o te ngaruiti te whakatutuki i te tere o te whakakīkī o te rauemi i te pāmahana iti iho, he iti ake te rahi o te witi me te ōrite ake i te sintering pēhanga noa, he iti iho i te rahi whakawhiti wāhanga matua o te t-ZrO2, he mea pai hei pupuri i te nui o te mea ka taea i roto i te āhua metastable i te pāmahana rūma, hei whakapai ake i te kaha me te pakari o ngā rauemi uku.
Te tukanga sintering takirua
Ka taea anake te tukatuka i ngā uku zirconia kua whakatōkia kiato mā te whakamahi i ngā taputapu tapahi emery nā te mea he pakeke, he kaha hoki, ā, he nui te utu tukatuka, he roa hoki te wā. Hei whakaoti i ngā raruraru o runga ake nei, i ētahi wā ka whakamahia ngā uku zirconia kia rua ngā tukanga whakatōkia, i muri i te hanganga o te tinana uku me te whakatōkia tuatahi, ka whakamahia te miihini whakanui CAD/CAM ki te āhua e hiahiatia ana, kātahi ka whakatōkia ki te pāmahana whakatōkia whakamutunga kia tino matotoru ai te rauemi.
Kua kitea ko ngā tukanga whakapūtanga e rua ka whakarerekē i te kaha o te whakapūtanga o ngā uku zirconia, ā, ka pā ki te mātotoru o te whakapūtanga, ngā āhuatanga hangarau me te hanganga moroiti o ngā uku zirconia. He pai ake ngā āhuatanga hangarau o ngā uku zirconia ka taea te miihini i te wā kotahi te whakapūtanga i ērā i te wā e rua te whakapūtanga. He teitei ake te kaha piko rua-axial me te pakari o te whati o ngā uku zirconia ka taea te miihini i te wā kotahi te whakapūtanga i ērā i te wā e rua te whakapūtanga. Ko te aratau whati o ngā uku zirconia tuatahi he transgranular/intergranular, ā, he tika te whiunga pakaru. Ko te aratau whati o ngā uku zirconia kua rua te whakapūtanga he whati intergranular te nuinga, ā, he uaua ake te ia o te pakaru. He pai ake ngā āhuatanga o te aratau whati hiato i te aratau whati intergranular ngāwari.
Te korehau whakawera
Me whakakorikori te Zirconia i roto i te taiao korehau, i roto i te tukanga whakakorikori ka puta he maha o ngā mirumiru, ā, i roto i te taiao korehau, he ngawari te tuku mirumiru mai i te āhua rewa o te tinana porcelain, ka whakapai ake i te kiato o te zirconia, ka whakanui ake i te haurua-permeability me ngā āhuatanga miihini o te zirconia.
Te tere whakamahana
I roto i te tukanga whakamahana o te zirconia, kia pai ai te mahi me ngā hua e tumanakohia ana, me whakamahi i te tere whakamahana iti iho. Nā te tere whakamahana teitei ka kore e ōrite te pāmahana o roto o te zirconia ina tae ki te pāmahana whakamahana whakamutunga, ka puta ngā kapiti me te hanganga o ngā pūwero. E whakaatu ana ngā hua, mā te pikinga o te tere whakamahana, ka poto te wā whakatio o ngā tioata zirconia, kāore e taea te tuku i te hau i waenga i ngā tioata, ā, ka paku piki te pūwero i roto i ngā tioata zirconia. Mā te pikinga o te tere whakamahana, ka tīmata te noho o te iti o te wāhanga tioata monoclinic i roto i te wāhanga tetragonal o te zirconia, ka pā ki ngā āhuatanga miihini. I taua wā anō, mā te pikinga o te tere whakamahana, ka porotaka ngā kakano, arā, he ngāwari te noho tahi o ngā kakano nui me ngā kakano iti. Mā te puhoi o te tere whakamahana ka pai ake te hanganga o ngā kakano ōrite ake, ka nui ake te āputaputa o te zirconia.
Wā tuku: 15 o Ākuhata-2023