Properties Na Zirconia Ceramics

Zirconia yumbura (ZrO2), tare da babban narkewa, babban taurin, kyakkyawan juriya na lalacewa, azaman insulator a yanayin zafi na al'ada, kuma a babban zafin jiki yana da kaddarorin gudanarwa. ZrO2 mai tsafta fari ne, rawaya ko launin toka lokacin da yake ɗauke da ƙazanta, kuma gabaɗaya ya ƙunshi HfO2, wanda ba shi da sauƙin rabuwa. Zirconia yawanci ana tsarkake shi daga taman zirconium.

Zirconia yana da nau'in lu'ulu'u guda uku: crystal monoclinic low-zazzabi (m-ZrO2), matsakaici-zazzabi tetragonal crystal (t-ZrO2), high-zazzabi mai siffar sukari crystal (c-ZrO2), lu'ulu'u uku na sama sun wanzu a cikin jeri daban-daban na zazzabi, kuma za a iya tuba zuwa juna.

Zirconia yumbu wani sabon nau'in tukwane ne na fasaha mai zurfi, ban da ƙarfin ƙarfi, tauri, juriya mai zafi mai ƙarfi, juriyawar lalata acid da alkali da kwanciyar hankali mai ƙarfi, a lokaci guda tare da juriya mai ƙarfi, babu garkuwar sigina, kyakkyawan aikin watsawar zafi. , yayin da machinability, kyakkyawan sakamako na bayyanar, dace da samar da taro.

1. Babban abin narkewa

Matsayin narkewa na zirconia shine 2715 ℃, kuma babban ma'anar narkewa da rashin kuzarin sinadarai suna sanya zirconia abu ne mai kyau.

2. high taurin, mai kyau lalacewa juriya

Abubuwan yumbu na zirconia suna da taurin mafi girma kuma mafi kyawun juriya. Daga ƙayyadaddun bayanai, ƙarfin Mohs na yumbura zirconia kusan 8.5, wanda ke kusa da taurin Mohs na sapphire 9.

3. ƙarfi da taurin suna da girman gaske

Zirconia yumbura yana da babban ƙarfi (har zuwa 1500MPa).

4. low thermal conductivity, low fadada coefficient

Matsakaicin zafin jiki na zirconia shine mafi ƙasƙanci a cikin kayan yumbu na gama gari (1.6-2.03W/ (mk)), kuma ƙimar haɓakar thermal yana kusa da na ƙarfe. Sabili da haka, yumbu na zirconia sun dace da kayan yumbu na tsari.

5. kyakkyawan aikin lantarki

Dielectric akai-akai na zirconia shine sau 3 na sapphire, siginar ya fi dacewa, kuma ya fi dacewa da facin ganewar yatsa. Dangane da hangen nesa na ingantaccen tsaro, yumbu na zirconia, a matsayin kayan da ba na ƙarfe ba, ba su da tasirin kariya akan siginar lantarki, kuma ba zai shafi shimfidar eriya na ciki ba, wanda za'a iya haɗawa cikin sauƙi da daidaitawa zuwa zamanin 5G.