Hloov ntawm Peb Cov Ntawv Cuam Tshuam ntawm Ceramic Heater Zirconia
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Hloov ntawm Peb Cov Ntawv Cuam Tshuam ntawm Ceramic Heater Zirconia
Ceramic rhaub yog dav siv nyob rau hauv kev lag luam, kev kho mob thiab tsev neeg daim ntawv thov vim lawv siab tsis kam mus rau tshav kub, tshuaj corrosion thiab hluav taws xob rwb thaiv tsev. Zirconia, tseem hu ua zirconium dioxide (ZrO2), yog cov khoom siv tseem ceeb siv rau cov cua sov ceramic vim nws cov thermal zoo heev thiab kev ruaj ntseg siab.
Zirconia tuaj yeem muaj nyob hauv peb hom siv lead ua sib txawv, suav nrog monoclinic, tetragonal thiab cubic theem. Daim ntawv siv lead ua ntawm zirconia tuaj yeem cuam tshuam rau nws cov thermal, mechanical thiab hluav taws xob. Nyob rau hauv xyoo tas los no, kev tshawb fawb tau tsom mus rau cov kev hloov pauv ntawm peb cov ntaub ntawv siv lead ua ntawm ceramic rhaub zirconia.
Monoclinic zirconia yog cov siv lead ua ntau tshaj plaws nyob rau hauv chav tsev kub. Nws muaj qib siab ntawm symmetry thiab ruaj khov nyob rau hauv ambient tej yam kev mob. Txawm li cas los xij, thaum kub siab tshaj 1170 degree, nws hloov pauv mus rau theem tetragonal nrog qhov ntim nthuav dav ntawm 4-5 feem pua. Kev hloov pauv ntawm monoclinic zirconia mus rau theem tetragonal yog hu ua martensitic transformation.
Tetragonal zirconia nthuav tawm cov khoom tshwj xeeb xws li lub zog siab, tawg toughness, thiab zoo heev thermal shock kuj. Txawm li cas los xij, thaum raug kub hnyiab, tetragonal zirconia tuaj yeem hloov mus rau theem cubic, uas ua rau muaj qhov nthuav dav ntawm kwv yees li 3-5 feem pua.
Cubic zirconia yog qhov tsawg tshaj plaws siv lead ua daim ntawv ntawm zirconia. Nws muaj qhov siab tshaj plaws symmetry thiab ruaj khov tsuas yog nyob rau hauv qhov kub ntawm txog 2670 degree. Vim nws cov thermal conductivity thiab siab dielectric tas li, cubic zirconia yog qhov tseem ceeb rau kev siv kub kub xws li hluav taws xob rwb thaiv tsev thiab hluav taws xob sib hloov.
Hauv kev xaus, daim ntawv siv lead ua ntawm zirconia hauv cov ntawv siv lub tshuab rhaub ceramic plays lub luag haujlwm tseem ceeb hauv kev ua haujlwm ntawm lub rhaub. Kev nkag siab txog cov kev hloov pauv ntawm peb cov ntaub ntawv siv lead ua ntawm ceramic rhaub zirconia tuaj yeem pab cov tuam txhab tsim cov khoom zoo dua uas ua tau raws li cov kev xav tau tshwj xeeb ntawm lawv cov neeg siv khoom.
