Na waiwai o Zirconia Ceramics

ʻO Zirconia ceramics (ZrO2), me ka helu heheʻe kiʻekiʻe, ka paʻakikī kiʻekiʻe, ke kūpaʻa maikaʻi loa, ma ke ʻano he insulator i ka mahana maʻamau, a ma ka wela kiʻekiʻe he mau waiwai conductive. He keʻokeʻo ʻo ZrO2 maʻemaʻe, melemele a hina paha ke loaʻa nā haumia, a he HfO2 maʻamau, ʻaʻole maʻalahi ke hoʻokaʻawale. Hoʻomaʻemaʻe pinepine ʻia ʻo Zirconia mai ka zirconium ore.

ʻEkolu mau ʻano kristal ka Zirconia: ke aniani monoclinic haʻahaʻa haʻahaʻa (m-ZrO2), ke aniani tetragonal medium-tetragonal (t-ZrO2), ke aniani cubic kiʻekiʻe (c-ZrO2), aia nā kristal ʻekolu ma luna i nā pae wela like ʻole, a hiki ke hoohuli i kekahi i kekahi.

ʻO Zirconia ceramics kahi ʻano hou o nā ceramics kiʻekiʻe, me ka ikaika kiʻekiʻe, ka paʻakikī, ke kūpaʻa kiʻekiʻe o ka wela, ke kūpaʻa ʻana o ka waika a me ka alkali a me ke kūpaʻa kemika kiʻekiʻe, i ka manawa like me ka pale ʻana, ʻaʻohe pale hōʻailona, ​​​​hana maikaʻi loa o ka wela. , oiai machinability, maikai hiʻona hopena, kūpono no ka hana nui.

1. Kiekie hehee ai

ʻO ka helu hoʻoheheʻe o zirconia he 2715 ℃, a ʻo ka helu heheʻe kiʻekiʻe a me ka inertness kemika e hana i ka zirconia i mea refractory maikaʻi.

2. kiʻekiʻe paʻakikī, maikaʻi ʻaʻahu kūʻē

ʻOi aku ka paʻakikī ʻoi aku ka paʻakikī o nā seramika Zirconia a ʻoi aku ka maikaʻi o ka pale ʻana. Mai ka ʻikepili kikoʻī, ʻo ka paʻakikī Mohs o ka zirconia ceramics ma kahi o 8.5, kahi kokoke loa i ka paʻakikī Mohs o ka sapphire 9.

3. ʻano nui ka ikaika a me ka paʻakikī

He ikaika kiʻekiʻe ka Zirconia ceramics (a hiki i 1500MPa).

4. haʻahaʻa thermal conductivity, haʻahaʻa hoʻonui coefficient

ʻO ka conductivity wela o ka zirconia ka mea haʻahaʻa loa i nā mea seramika maʻamau (1.6-2.03W/ (mk)), a ʻo ka coefficient o ka hoʻonui wela ua kokoke i ka metala. No laila, kūpono nā seramika zirconia no nā mea hana seramika.

5. hana uila maikaʻi

ʻO ka dielectric mau o ka zirconia he 3 mau manawa o ka sapphire, ʻoi aku ka maʻalahi o ka hōʻailona, ​​​​a ʻoi aku ka maikaʻi no nā ʻāpana ʻike manamana lima. Ma muli o ka manaʻo o ka palekana palekana, zirconia ceramics, ma ke ʻano he mea non-metallic, ʻaʻohe hopena pale i nā hōʻailona electromagnetic, a ʻaʻole e hoʻopilikia i ka hoʻolālā antenna kūloko, hiki ke hoʻohui maʻalahi a hoʻololi i ka wā 5G.