Zirconium oxide (ZrO₂), tseem hu ua zirconium dioxide, yog ib qho khoom siv ceramic tseem ceeb uas ua haujlwm tau zoo. Nws yog hmoov dawb lossis daj daj nrog cov khoom siv lub cev thiab tshuaj zoo heev. Zirconia muaj qhov chaw yaj ntawm li 2700 ° C, muaj zog heev, muaj zog kho tshuab zoo, ruaj khov thermal zoo thiab ruaj khov tshuaj lom neeg, thiab tuaj yeem tiv taus acid thiab alkali corrosion thiab qhov kub siab. Tsis tas li ntawd, zirconium oxide muaj qhov ntsuas refractive siab thiab cov khoom siv optical zoo heev, yog li nws kuj siv dav hauv thaj chaw optical.
Hauv kev siv ua haujlwm, ntshiabzirconium oxidemuaj teeb meem hloov theem (kev hloov ntawm theem monoclinic mus rau theem tetragonal yuav ua rau muaj kev hloov pauv ntawm qhov ntim thiab cov khoom tawg), yog li nws feem ntau tsim nyog los dope stabilizers xws li yttrium oxide (Y₂O₃), calcium oxide (CaO) lossis magnesium oxide (MgO) los ua kom ruaj khov zirconium oxide (Stabilized Zirconia) los txhim kho nws cov khoom siv kho tshuab thiab thermal shock tsis kam. Los ntawm kev tsim nyog doping thiab sintering cov txheej txheem, zirconia cov ntaub ntawv tsis tsuas yog tuaj yeem tswj hwm cov khoom siv kho tshuab zoo heev, tab sis kuj qhia tau tias muaj kev coj ua zoo ionic, uas ua rau nws siv dav hauv cov qauv ceramics, roj cell, oxygen sensors, kev cog hniav kho mob thiab lwm yam teb.
Ntxiv rau cov ntaub ntawv siv rau cov qauv ib txwm muaj, zirconia kuj tseem ua lub luag haujlwm tseem ceeb hauv kev kho qhov chaw ultra-precision, tshwj xeeb tshaj yog hauv kev kho cov ntaub ntawv polishing siab. Nrog nws cov khoom siv lub cev tshwj xeeb, zirconia tau dhau los ua cov khoom siv tseem ceeb rau kev polishing precision.
Hauv kev ua polishing,zirconiafeem ntau yog siv ua hmoov txhuam hniav zoo tshaj plaws thiab cov tshuaj txhuam hniav. Vim nws qhov nyuaj nruab nrab (Mohs hardness ntawm kwv yees li 8.5), lub zog kho tshuab siab thiab kev tsis muaj zog tshuaj zoo, zirconia tuaj yeem ua tiav qhov roughness qis heev thaum ua kom muaj kev txhuam hniav siab, thiab tau txais qhov tiav zoo li daim iav. Piv nrog cov ntaub ntawv txhuam hniav ib txwm muaj xws li txhuas oxide thiab cerium oxide, zirconia tuaj yeem sib npaug zoo dua ntawm cov khoom tshem tawm thiab qhov zoo ntawm qhov chaw thaum lub sijhawm txhuam hniav, thiab yog ib qho tseem ceeb hauv kev txhuam hniav hauv kev tsim khoom siv ultra-precision.
Feem ntau, zirconia polishing hmoov muaj qhov loj me ntawm 0.05μm thiab 1μm, uas yog qhov tsim nyog rau kev polishing nto ntawm ntau yam khoom siv siab. Nws cov chaw siv tseem ceeb suav nrog: iav kho qhov muag, lub koob yees duab lens, lub vijtsam xov tooj ntawm tes iav, hard disk substrates, LED sapphire substrates, cov khoom siv hlau siab (xws li titanium alloys, stainless hlau, cov hlau muaj nqis hniav nyiaj hniav kub) thiab cov khoom siv ceramic siab heev (xws li alumina ceramics, silicon nitride ceramics, thiab lwm yam). Hauv cov ntawv thov no,zirconium oxideCov hmoov txhuam hniav tuaj yeem txo qhov tsis zoo ntawm qhov chaw thiab txhim kho kev ua haujlwm ntawm qhov muag thiab kev ruaj khov ntawm cov khoom.
Yuav kom ua tau raws li qhov xav tau ntawm cov txheej txheem polishing sib txawv,zirconium oxidetuaj yeem ua rau hauv ib qho hmoov txhuam, lossis nws tuaj yeem sib xyaw nrog lwm cov ntaub ntawv txhuam (xws li cerium oxide, txhuas oxide) los ua cov tshuaj txhuam polishing nrog kev ua tau zoo dua. Tsis tas li ntawd, cov tshuaj txhuam zirconium oxide uas muaj cov khoom siv siab feem ntau siv cov thev naus laus zis nano-dispersion los ua kom cov khoom me me tawg hauv cov kua kom tsis txhob muaj kev sib sau ua ke, xyuas kom meej tias cov txheej txheem txhuam polishing ruaj khov thiab qhov sib xws ntawm qhov chaw kawg.
Zuag qhia tag nrho, nrog rau kev txhim kho tas mus li ntawm cov kev xav tau zoo ntawm qhov chaw hauv kev siv tshuab hluav taws xob, kev tsim khoom siv kho qhov muag, kev tsav dav hlau thiab kev kho mob siab,zirconium oxide, ua ib hom khoom siv polishing tshiab uas ua haujlwm tau zoo, muaj kev cia siab dav heev. Yav tom ntej, nrog rau kev txhim kho tas mus li ntawm cov thev naus laus zis ultra-precision machining, kev siv zirconium oxide hauv kev ua polishing yuav txuas ntxiv mus tob zuj zus, pab kom tau raws li cov kev xav tau ntawm kev tsim khoom siab dua.