Kev Tshawb Fawb Txog Kev Siv Zirconia Hmoov Hauv High-End Precision Polishing
Nrog rau kev loj hlob sai ntawm cov lag luam thev naus laus zis siab xws li cov khoom siv hluav taws xob thiab cov ntaub ntawv thev naus laus zis, kev tsim khoom siv kho qhov muag, cov khoom siv semiconductor, thiab cov khoom siv ceramic siab heev, cov kev xav tau siab dua tau muab tso rau qhov zoo ntawm cov khoom siv ua tiav. Tshwj xeeb, hauv kev ua haujlwm siab heev ntawm cov khoom tseem ceeb xws li sapphire substrates, optical iav, thiab hard disk platters, kev ua tau zoo ntawm cov khoom siv polishing ncaj qha txiav txim siab qhov ua tau zoo ntawm kev ua haujlwm thiab qhov zoo ntawm qhov chaw kawg.Zirconia hmoov (ZrO₂), ib yam khoom siv inorganic ua tau zoo heev, maj mam tshwm sim hauv kev ua haujlwm siab precision polishing vim nws qhov nyuaj zoo heev, thermal stability, hnav tsis kam, thiab polishing zog, ua tus sawv cev ntawm tiam tom ntej ntawm cov khoom siv polishing tom qab cerium oxide thiab txhuas oxide.
I. Cov Khoom Siv ntawmZirconia Hmoov
Zirconia yog ib qho hmoov dawb nrog lub melting point siab (kwv yees li 2700 ° C) thiab ntau yam qauv siv lead ua, suav nrog monoclinic, tetragonal, thiab cubic phases. Cov hmoov zirconia uas ruaj khov lossis ib nrab ruaj khov tuaj yeem tau txais los ntawm kev ntxiv cov stabilizers tsim nyog (xws li yttrium oxide thiab calcium oxide), uas tso cai rau nws kom tswj tau qhov ruaj khov zoo thiab cov khoom siv kho tshuab txawm tias nyob rau qhov kub siab.
Zirconia hmoovqhov zoo tshaj plaws ntawm cov khoom no feem ntau pom tseeb hauv cov hauv qab no:
Kev nyuaj siab thiab muaj peev xwm ua kom zoo heev: Nrog Mohs hardness ntawm 8.5 lossis siab dua, nws tsim nyog rau kev ua kom tiav ntawm ntau yam khoom siv siab.
Kev ruaj khov tshuaj lom neeg muaj zog: Nws tseem ruaj khov hauv cov chaw acidic lossis me ntsis alkaline thiab tsis yooj yim rau cov tshuaj lom neeg.
Kev tawg zoo heev: Hloov kho nano- lossis submicron-sizedzirconia hmoovua rau pom kev zoo heev thiab ntws tau zoo, ua rau kev txhuam kom sib xws.
Kev ua kom sov tsawg thiab kev puas tsuaj tsawg: Cov cua sov tsim thaum lub sijhawm polishing yog tsawg heev, ua rau txo qis kev ntxhov siab thermal thiab kev pheej hmoo ntawm microcracks ntawm qhov chaw ua tiav.
II. Cov Kev Siv Zirconia Hmoov Hauv Kev Ua Kom Tiav Precision
1. Kev Txhuam Sapphire Substrate
Cov siv lead ua los ntawm sapphire, vim lawv qhov nyuaj siab thiab cov khoom siv kho qhov muag zoo heev, tau siv dav hauv cov chips LED, cov tsom iav saib, thiab cov khoom siv optoelectronic. Hmoov Zirconia, nrog nws qhov nyuaj zoo sib xws thiab qhov puas tsuaj tsawg, yog cov khoom siv zoo tagnrho rau kev txhuam tshuaj lom neeg (CMP) ntawm sapphire. Piv rau cov khoom ib txwm muajcov hmoov txhuam hniav txhuas oxide, zirconia txhim kho qhov chaw tiaj tus thiab daim iav tiav thaum tswj cov nqi tshem tawm cov khoom, txo cov khawb thiab microcracks.
2. Kev Txhuam Iav Kho Qhov Muag
Hauv kev ua cov khoom siv kho qhov muag xws li cov iav siab, cov prisms, thiab cov ntsej muag kawg ntawm cov fiber ntau, cov ntaub ntawv polishing yuav tsum ua tau raws li qhov yuav tsum tau ua kom huv si thiab zoo heev. Siv cov khoom huv si siabzirconium oxide hmoovnrog rau qhov loj me ntawm 0.3-0.8 μm ua tus neeg sawv cev polishing kawg ua tiav qhov roughness qis heev (Ra ≤ 1 nm), ua tau raws li qhov yuav tsum tau ua "flawless" ntawm cov khoom siv kho qhov muag.
3. Kev Ua Haujlwm ntawm Hard Drive Platter thiab Silicon Wafer
Nrog rau qhov nce ntxiv ntawm qhov ceev ntawm cov ntaub ntawv khaws cia, qhov yuav tsum tau ua rau qhov chaw tiaj tiaj ntawm lub hard drive platter tau dhau los ua qhov nruj dua.Zirconia hmoov, siv rau theem kev txhuam zoo ntawm cov tawv hard drive platter, tswj tau qhov tsis zoo ntawm kev ua haujlwm, txhim kho kev sau disk thiab lub neej ua haujlwm. Ntxiv mus, hauv kev txhuam kom raug ntawm silicon wafers, zirconium oxide qhia txog kev sib raug zoo ntawm qhov chaw thiab cov khoom poob qis, ua rau nws yog lwm txoj hauv kev loj hlob rau ceria.
III. Cov Nyhuv ntawm Qhov Loj ntawm Cov Khoom Me Me thiab Kev Tswj Xyuas Kev Ncua rau Cov Txiaj Ntsig Polishing
Qhov kev ua polishing ntawm zirconium oxide hmoov tsis yog tsuas yog cuam tshuam nrog nws lub cev hardness thiab crystal structure, tab sis kuj tseem cuam tshuam los ntawm nws cov khoom me me faib thiab dispersion.
Kev Tswj Qhov Loj ntawm Cov Khoom Me Me: Cov khoom me me loj dhau tuaj yeem ua rau khawb ntawm qhov chaw, thaum cov khoom me me dhau tuaj yeem txo cov nqi tshem tawm cov khoom. Yog li ntawd, cov hmoov me me lossis cov hmoov nano nrog D50 ntau ntawm 0.2 txog 1.0 μm feem ntau siv los ua kom tau raws li cov kev xav tau sib txawv.
Kev Ua Haujlwm Dispersion: Kev dispersibility zoo tiv thaiv cov khoom me me agglomerate, xyuas kom meej tias cov tshuaj polishing ruaj khov, thiab txhim kho kev ua haujlwm zoo. Qee cov hmoov zirconia zoo, tom qab hloov kho qhov chaw, qhia txog cov khoom zoo heev hauv cov kua dej lossis cov kua qaub tsis muaj zog, tswj kev ua haujlwm ruaj khov rau ntau tshaj kaum ob teev.
IV. Cov Qauv Kev Loj Hlob thiab Kev Cia Siab Yav Tom Ntej
Nrog rau kev nce qib tas mus li ntawm cov thev naus laus zis nanofabrication,zirconia hmoovtab tom raug txhim kho kom muaj kev ntshiab dua, kev faib cov khoom me me dua, thiab kev sib kis tau zoo dua. Cov cheeb tsam hauv qab no yuav tsum tau saib xyuas yav tom ntej:
1. Kev Tsim Khoom Loj thiab Kev Txhim Kho Tus Nqi ntawm Nano-ScaleZirconia Hmoov
Kev daws qhov teeb meem kim heev thiab cov txheej txheem nyuaj ntawm kev npaj cov hmoov uas muaj cov khoom huv siab yog qhov tseem ceeb rau kev txhawb nqa lawv daim ntawv thov dav dua.
2. Kev Tsim Kho Cov Khoom Siv Sib Xyaws
Kev sib xyaw ua ke ntawm zirconia nrog cov ntaub ntawv xws li alumina thiab silica txhim kho cov nqi tshem tawm thiab kev tswj hwm qhov chaw.
3. Lub Tshuab Ua Kua Polishing Ntsuab thiab Ib puag ncig zoo
Tsim cov khoom siv dispersion thiab cov additives uas tsis muaj tshuaj lom, biodegradable los txhim kho kev phooj ywg ib puag ncig.
V. Xaus Lus
Zirconium oxide hmoov, nrog nws cov khoom siv zoo heev, tab tom ua lub luag haujlwm tseem ceeb hauv kev ua kom zoo tshaj plaws. Nrog kev nce qib tas mus li hauv kev tsim khoom siv thiab kev thov kev lag luam nce ntxiv, daim ntawv thov ntawmzirconium oxide hmoovyuav dav dua, thiab nws xav tias yuav dhau los ua qhov kev txhawb nqa tseem ceeb rau tiam tom ntej ntawm cov ntaub ntawv polishing ua tau zoo. Rau cov tuam txhab cuam tshuam, kev ua raws li cov qauv hloov kho cov khoom siv thiab nthuav cov ntawv thov siab hauv kev polishing yuav yog txoj hauv kev tseem ceeb los ua tiav qhov sib txawv ntawm cov khoom thiab kev coj noj coj ua hauv kev siv tshuab.