Kodi zirconia ceramics ndi chiyani?

Zirconia ceramics ndi zoyera, zachikasu kapena zotuwa zikakhala ndi zonyansa, ndipo nthawi zambiri zimakhala ndi HfO2, zomwe sizovuta kuzilekanitsa.Pali magawo atatu a kristalo a ZrO2 yoyera pansi pa kukakamizidwa kwabwinobwino.

■Kutentha kochepa kwa monoclinic (m-ZrO2)■Kutentha kwapakati pa tetragonal (t-ZrO2)■Kutentha kwakukulu kwa cubic (c-ZrO2)

Mitundu itatu ya kristalo yomwe ili pamwambayi ilipo mumitundu yosiyanasiyana ya kutentha, ndipo pali maubwenzi osinthana awa:

Makhalidwe a zirconia ceramics

High-melting-point

Zirconia kusungunuka mfundo ndi: 2715 ℃, angagwiritsidwe ntchito monga mkulu kutentha zinthu refractory

High kuuma, zabwino kuvala kukana

Mohs kuuma: safiro > Zirconia ceramics > Corning Glass > Aluminium magnesium alloy > tempered glass > polycarbonate

Mphamvu zazikulu ndi kulimba

Mphamvu ya zirconia imatha kufika: 1500MPa

Low matenthedwe madutsidwe ndi coefficient wa kukulitsa

Pakati pa zida zodziwika bwino za ceramic, kutentha kwake ndikotsika kwambiri (1.6-2.03W/(mk)), ndipo coefficient of thermal expansion ili pafupi ndi chitsulo.

Kuchita bwino kwamagetsi

Kukhazikika kwa dielectric kwa zirconia ndi 3 nthawi ya safiro, ndipo chizindikirocho chimakhala chovuta kwambiri.

Kugwiritsa ntchito zirconia ceramics

Zirconia ceramics amagwiritsidwa ntchito kwambiri pamagetsi a 3C, kulumikizana kwa kuwala, kuvala mwanzeru, zamankhwala, zodzikongoletsera, zodzikongoletsera, moyo watsiku ndi tsiku, zida zokanira ndi zina.

Zirconia ceramic product kukonzekera tekinoloje

Sintering ndi njira yofunika kwambiri pokonzekera zirconia ceramics, khalidwe la sintering lidzakhudza mwachindunji kukonza ceramic, kutentha kokha kwa sintering kumasinthidwa bwino, thupi lake lachiberekero lidzakhala langwiro.Pressureless sintering ndiyo njira yomwe imagwiritsidwa ntchito kwambiri sintering.

Chifukwa zida zoyera za ceramic nthawi zina zimakhala zovuta kuziyika, malinga ndi momwe zimagwirira ntchito, zowonjezera zina za sintering nthawi zambiri zimayambitsidwa kuti zipangitse gawo losungunuka losungunuka la yankho lolimba, gawo lagalasi kapena gawo lina lamadzimadzi, kulimbikitsa kukonzanso kwa tinthu tating'onoting'ono ndi kutuluka kwa viscous. , kuti apeze mankhwala wandiweyani, komanso kuchepetsa kutentha sintering.

Kuchepetsa kukula kwa ufa momwe mungathere ndi chimodzi mwazinthu zofunika kwambiri zolimbikitsira sintering.Chifukwa ufa wowongoka kwambiri, mphamvu ya pamwamba imapangitsa kuti sintering ikhale yosavuta.Kwa zida za ceramic ndi zinthu zomwe zimafunikira magwiridwe antchito wamba, sintering yopanda kukakamiza ndiyo njira yabwino kwambiri komanso yotsika mtengo.