Katundu wa Zirconia Ceramics

Zirconia ceramics (ZrO2), yokhala ndi malo osungunuka kwambiri, kuuma kwakukulu, kukana kwambiri kuvala, monga insulator pa kutentha kwabwino, komanso kutentha kwambiri kumakhala ndi zinthu zochititsa chidwi. ZrO2 yoyera ndi yoyera, yachikasu kapena imvi ikakhala ndi zonyansa, ndipo nthawi zambiri imakhala ndi HfO2, yomwe sivuta kuipatula. Zirconia nthawi zambiri imatsukidwa kuchokera ku zirconium ore.

Zirconia ili ndi mitundu itatu ya makhiristo: otsika kutentha monoclinic crystal (m-ZrO2), sing'anga kutentha tetragonal kristalo (t-ZrO2), high-temperature kiyubiki krustalo (c-ZrO2), makhiristo pamwamba atatu alipo osiyanasiyana kutentha osiyanasiyana. ndipo akhoza kutembenuzidwa wina ndi mzake.

Zirconia ceramics ndi mtundu watsopano wa zoumba zapamwamba zamakono, kuwonjezera mphamvu mkulu, kuuma, kutentha kukana, asidi ndi alkali dzimbiri kukana ndi mkulu kukhazikika mankhwala, pa nthawi yomweyo ndi zikande kukana, palibe kutchinga chizindikiro, ntchito kwambiri kutentha dissipation. , pomwe machinability, mawonekedwe abwino, oyenera kupanga misa.

1. Malo osungunuka kwambiri

Malo osungunuka a zirconia ndi 2715 ℃, ndipo malo osungunuka kwambiri ndi kusungunuka kwa mankhwala kumapangitsa zirconia kukhala chinthu chabwino chokana.

2. kuuma kwakukulu, kukana bwino kuvala

Zirconia ceramics ali ndi kuuma kwambiri komanso kukana kuvala bwino. Kuchokera pazidziwitso zenizeni, kuuma kwa Mohs kwa zirconia ceramics kuli pafupifupi 8.5, komwe kuli pafupi kwambiri ndi kuuma kwa Mohs kwa safiro 9.

3. mphamvu ndi kulimba ndi zazikulu

Zirconia ceramics ali ndi mphamvu yayikulu (mpaka 1500MPa).

4. otsika matenthedwe madutsidwe, otsika kukulitsa coefficient

The matenthedwe madutsidwe wa zirconia ndi otsika kwambiri zinthu zadothi wamba (1.6-2.03W/ (mk)), ndi coefficient of matenthedwe kukula ndi pafupi ndi zitsulo. Chifukwa chake, zirconia za ceramic ndizoyenera kupangira zida za ceramic.

5. ntchito yabwino yamagetsi

Dielectric constant ya zirconia ndi 3 kuwirikiza kwa safiro, siginecha imakhala yovuta kwambiri, ndipo ndiyoyenera kuzindikiritsa zala zala. Kutengera ndi momwe chitetezo chimagwirira ntchito, zirconia ceramics, monga zinthu zopanda zitsulo, sizikhala ndi chitetezo pazizindikiro zamagetsi, ndipo sizingakhudze kapangidwe ka mlongoti wamkati, womwe ungaphatikizidwe mosavuta ndikusintha nthawi ya 5G.