Zirconia keramikahe keʻokeʻo, melemele a hina paha ke loaʻa nā haumia, a he HfO2 maʻamau, ʻaʻole maʻalahi ke hoʻokaʻawale. Aia ʻekolu mau mokuʻāina aniani o ZrO2 maʻemaʻe ma lalo o ke kaomi maʻamau.
■Monoclinic wela haʻahaʻa (m-ZrO2)■Tetragonal wela waena (t-ZrO2)■Cubic wela kiʻekiʻe (c-ZrO2)
Aia nā ʻano kristal ʻekolu i luna ma nā pae wela like ʻole, a aia nā pilina hoʻololi like ʻole:
ʻO nā hiʻohiʻona o ka zirconia ceramics
High-melting-point
ʻO ka helu hoʻoheheʻe Zirconia: 2715 ℃, hiki ke hoʻohana ʻia e like me ke kiʻekiʻe o ka wela refractory mea
ʻO ka paʻakikī kiʻekiʻe, ke kūpaʻa maikaʻi
Wahi a Mohs paʻakikī: sapphire >Zirconia keramika> Keaniani Ko'i > Aluminum magnesium alloy > Keaniani ho'ohehe'e > polycarbonate
Ka ikaika kiʻekiʻe a me ka paʻakikī
Hiki i ka ikaika o ka zirconia ke hiki i: 1500MPa
Haʻahaʻa thermal conductivity a me ka coefficient o ka hoonui
Ma waena o nā mea seramika maʻamau, ʻo kona conductivity wela ka haʻahaʻa loa (1.6-2.03W/(mk)), a ʻo ka coefficient o ka hoʻonui wela e kokoke ana i ka metala.
Hana uila maikaʻi
ʻO ka dielectric mau o zirconia he 3 mau manawa o ka sapphire, a ʻoi aku ka maʻalahi o ka hōʻailona.
Ka hoʻohana ʻana i nā seramika zirconia
Zirconia keramikahoʻohana nui ʻia i ka uila uila 3C, kamaʻilio optical, ʻaʻahu akamai, biomedical, jewelry, ola o kēlā me kēia lā, nā mea refractory a me nā māla ʻē aʻe.
ʻenehana hoʻomākaukau huahana Zirconia ceramic
He mea nui loa ka Sintering i ka hoomakaukau anazirconia keramika, E pili pono ana ka maikaʻi o ka sintering i ka hana seramika, hoʻoponopono pono ʻia ka mahana o ka sintering, e hemolele kona kino embryo. ʻO ka sintering pressureless ka mea maʻamau i hoʻohana ʻia.
Ma muli o ka paʻakikī o nā mea seramika maʻemaʻe i ka sintering, ma lalo o nā kūlana o ka hana, hoʻokomo pinepine ʻia kekahi mau mea hoʻohui sintering e hana i kahi wahi hoʻoheheʻe haʻahaʻa haʻahaʻa o ka hopena paʻa, ka māhele aniani a i ʻole ka pae wai ʻē aʻe, e hoʻoikaika i ka hoʻonohonoho hou ʻana o nā ʻāpana a me ke kahe viscous. , no ka loaʻa ʻana o kahi huahana paʻa, akā e hoʻemi hoʻi i ka mahana sintering.
ʻO ka hoʻemi ʻana i ka nui o ka pauda i hiki ke hana ʻia kekahi o nā hana koʻikoʻi e hāpai i ka sintering. No ka mea, ʻoi aku ka maikaʻi o ka pauka, ʻoi aku ka kiʻekiʻe o ka ikehu ʻili, ʻoi aku ka maʻalahi o ka sintering. No nā mea seramika a me nā huahana me nā koi hana maʻamau, ʻo ka sintering non-pressure ka mea maʻalahi a me ka hoʻokele waiwai.
Ka manawa hoʻouna: Iulai-24-2023