Zirconia feem ntau muaj nyob rau hauv peb cov ntaub ntawv: ntshiab zirconia, zirconia-toughened alumina, thiab ib feem stabilized zirconia. Cov ntaub ntawv no nthuav tawm cov khoom sib txawv ntawm lub cev thiab tshuaj lom neeg vim muaj kev sib txawv hauv kev sib xyaw thiab kev ua haujlwm, ua tau raws li ntau hom kev thov.
Zirconium oxide yog ib qho kev ua haujlwm siab -kev ua haujlwm tsis zoo hauv cov khoom tsis yog-cov khoom siv hlau nrog cov khoom zoo ntawm lub cev thiab tshuaj lom neeg. Nyob ntawm seb nws muaj pes tsawg leeg thiab cov txheej txheem kev npaj, zirconia tuaj yeem muab faib ua ntau yam ntaub ntawv. Hauv qab no, peb yuav qhia peb cov ntaub ntawv tseem ceeb ntawm zirconia kom ntxaws.
Ntshiab Zirconia
Ntshiab zirconia hais txog cov khoom sib xyaw ua ke ntawm zirconium thiab cov pa oxygen, muaj zog hardness, siab zog, siab hnav tsis kam, thiab zoo tshuaj stability. Tsis tas li ntawd, ntshiab zirconia muaj qhov ntsuas siab siab thiab qis thermal conductivity, yog li nrhiav tau dav siv hauv cov khoom siv kho qhov muag thiab thermal rwb thaiv tsev. Txawm li cas los xij, cov zirconia ntshiab muaj qhov tsis zoo thiab ua rau muaj kev puas tsuaj rau qhov cuam tshuam, uas tuaj yeem txwv tsis pub siv rau hauv qee yam kev siv uas yuav tsum tau muaj zog toughness.
Zirconia-Toughened Alumina
Txhawm rau kov yeej qhov tsis zoo ntawm cov zirconia ntshiab, cov kws tshawb fawb tau tsim cov zirconia- cov ntaub ntawv toughened alumina. Cov khoom no yog npaj los ntawm kev ntxiv ib qho nyiaj ntawm zirconia hais rau alumina matrix los ntawm cov txheej txheem tshwj xeeb. Qhov sib ntxiv ntawm zirconia microparticles tuaj yeem txhim kho qhov toughness thiab kev cuam tshuam ntawm cov ntaub ntawv thaum tswj siab hardness thiab hnav tsis kam. Yog li ntawd, zirconia-toughened alumina yog dav siv nyob rau hauv tej hub tej cuab yeej, abrasives, thiab hnav- tiv taus coatings.
Ib nrab Stabilized Zirconia
Ib nrab stabilized zirconia yog cov khoom siv zirconia nrog cov qauv tshwj xeeb. Los ntawm kev ntxiv cov stabilizers tsim nyog (xws li calcium oxide thiab magnesium oxide) rau zirconia, nws tuaj yeem tswj tau cov qauv siv lead ua ruaj khov ntawm qhov kub thiab txias, yog li nthuav tawm cov thermal shock tsis kam thiab siab mechanical zog. Ib feem stabilized zirconia yog qhov tseem ceeb hauv kev tsim cov khoom kub - kub hauv aerospace, nuclear zog, thiab lwm yam kev lag luam, thiab tseem siv dav hauv kev kho mob xws li kho hniav ceramics.
Hauv cov ntsiab lus, peb cov ntaub ntawv tseem ceeb ntawm zirconia-zirconia ntshiab, zirconia-toughened alumina, thiab ib feem stabilized zirconia-txhua tus muaj cov yam ntxwv tshwj xeeb ntawm kev ua haujlwm, kev siv, thiab kev npaj txheej txheem. Kev nkag siab txog cov khoom ntawm cov ntaub ntawv no pab rau kev xaiv zoo dua thiab siv cov ntaub ntawv zirconia kom tau raws li qhov xav tau ntawm ntau qhov chaw.
