Kev Siv Aluminium Oxide Qib Siab (Al2O3): Pab Kom Muaj Kev Siv High-Tech nrog Kev Ntsuas Tseeb thiab Kev Ntseeg Tau
Abstract
Txhuas oxide (Al2O3), feem ntau hu ua alumina, yog cov khoom siv ceramic uas muaj ntau yam thiab ua tau zoo siv dav hauv ntau lub lag luam siab heev vim nws lub zog dielectric tshwj xeeb, thermal stability, tshuaj inertness, thiab mechanical hardness. Daim ntawv no piav qhia txog cov khoom tseem ceeb, daim ntawv thov, thiab cov lus qhia txog kev ua haujlwm ntawm alumina siab-purity, nrog rau kev tsom mus rau nws lub luag haujlwm tseem ceeb hauv kev ntim khoom semiconductor thiab cov roj teeb lithium-ion. Tsis tas li ntawd, nws qhia txog kev tsim khoom thiab kev muab khoom ntawm UrbanMines Tech., tus thawj coj hauv Suav teb cog lus rau qhov zoo, kev hloov kho, thiab kev pabcuam xa khoom txhim khu kev qha.
1. Kev Taw Qhia
Alumina tsis yog tsuas yog cov khoom siv raw rau kev tsim txhuas xwb; nws yog lub hauv paus ntawm kev tsim khoom siv thev naus laus zis niaj hnub. Txij li microelectronics thiab kev khaws cia lub zog mus rau optics, catalysis, thiab cov txheej tiv thaiv, alumina txoj kev sib xyaw ua ke ntawm cov yam ntxwv ua rau nws tsis tseem ceeb. Nrog rau qhov kev thov loj hlob rau miniaturization, kev siv hluav taws xob zoo, thiab kev ntseeg siab siab hauv cov tshuab hluav taws xob thiab lub zog, qhov kev xav tau rau alumina purity siab tsis tau loj dua li no.
2. Cov Khoom Siv thiab Cov Lus Qhia Tshwj Xeeb
Alumina purity siab yog cais los ntawm nws theem, qib purity, qhov loj me ntawm cov khoom me me, thiab cov ntsiab lus tsis huv, txhua qhov kev ntsuas tau tsim rau cov kev xav tau ntawm daim ntawv thov tshwj xeeb.
2.1 Kev Tswj Xyuas Kev Huv thiab Kev Tsis Huv
- Cov Qib Siab Purity: 4N (99.99%), 5N (99.999%), thiab 6N (99.9999%) alumina yog qhov tseem ceeb rau cov ntawv thov rhiab heev xws li semiconductor encapsulation thiab optical components.
- Kev Tso Tawm Alpha-Ray Qis: Tseem ceeb rau kev ntim khoom semiconductor kom tiv thaiv kev ua yuam kev mos hauv cov khoom siv nco. Cov lus qhia feem ntau xav tau Uranium (U) thiab Thorium (Th) cov ntsiab lus qis dua 3 ppb, nrog rau qhov tsis huv Fe, Na, thiab Cl tsawg kawg nkaus.
- Piv txwv li:
- Cov ntsiab lus Al₂O₃: ≥ 99.7%
- SiO₂: <0.15%, Fe₂O₃: <0.1%, Na₂O: < 0.1%
- Dej noo: < 0.1%, Poob thaum hluav taws: < 0.1%
2.2 Qhov Loj thiab Morphology ntawm Cov Khoom Me Me
Cov ntawv thov qhia txog kev ntsuas granulometry kom meej:
- Spherical Alumina: D50 qhov ntau thiab tsawg txij li 1 µm txog 45 µm (piv txwv li, 2.8 µm, 5.8 µm rau qhov ntim khoom zoo tshaj plaws hauv semiconductors).
- Alumina Tsis-Spherical: D50 txij li 1.5–10.5 µm, siv rau hauv cov txheej thiab cov khoom sib xyaw uas qhov chaw tshwj xeeb thiab qhov ceev ntsuab yog qhov tseem ceeb.
- BET Qhov Chaw Nto: Feem ntau < 1.5 m²/g rau cov txheej txheem kom ntseeg tau tias cov qauv slurry thiab kev nplaum zoo.
2.3 Cov Qauv Theem thiab Crystalline
Alpha-theem alumina (α-Al2O3) yog daim ntawv thermodynamically ruaj khov tshaj plaws, muab qhov nyuaj tshaj plaws, thermal conductivity, thiab hluav taws xob rwb thaiv tsev. Cov siv lead ua qhov loj ntawm 2–3 µm feem ntau yog teev rau kev coj tus cwj pwm sintering thiab qhov kawg microstructure.
3. Cov Ntawv Thov Tseem Ceeb hauv Kev Lag Luam High-Tech
3.1 Kev Ntim Khoom Siv Semiconductor
Alumina spherical qis-alpha yog siv los ua cov khoom sau rau hauv epoxy molding compounds (EMCs) los txhim kho thermal conductivity, txo cov coefficient ntawm thermal expansion (CTE), thiab muab kev tiv thaiv hluav taws xob. Kev faib tawm ntawm cov khoom me me (piv txwv li, bimodal 2.8 µm thiab 5.8 µm) yog qhov zoo tshaj plaws rau kev ntim khoom siab tshaj plaws thiab qhov viscosity tsawg kawg nkaus.
3.2 Cov Txheej Txheem Sib Cais Roj Teeb Lithium-Ion
Cov α-alumina uas muaj purity siab (D50 < 4 µm) yog siv ua ib txheej ceramic rau ntawm cov polymer separators. Nws txhim kho kev ruaj khov ntawm thermal, tiv thaiv kev nkag mus rau hauv dendrite, thiab ua rau electrolyte ntub dej, yog li ua rau lub roj teeb muaj kev nyab xeeb thiab lub neej voj voog ntev dua. Cov khoom siv no tau sib xyaw nrog cov binders los ua ib qho slurry ruaj khov rau kev txheej sib xws.
3.3 Lwm Cov Kev Siv Siab Tshaj Plaws
- Capacitors: Ua ib qho dielectric barrier vim nws qhov dav band gap.
- Catalysis & Adsorption: Alumina thaj chaw siab ua cov catalyst txhawb nqa lossis desiccant.
- Cov Khoom Uas Ua Los Ntawm Cov Khoom Uas Ua Los Ntawm Cov Khoom Uas Ua Los Ntawm Cov Khoom Uas Ua Los Ntawm Cov Khoom Uas Ua Los Ntawm Cov Khoom Uas Tiv Thaiv Tau Kev Hnav, Cov Khoom Uas Cog Rau Hauv Lub Cev (piv txwv li, Cov Khoom Hloov Lub duav), thiab Cov Tshuab Ua Rog.
- Kev Txhuam thiab Abrasives: Ultrafine alumina (Diamantine) rau kev txhuam kom raug hauv kev kho qhov muag thiab kev ua moos.
- Kev rwb thaiv kub siab: Ua cov ntaub thaiv refractory hauv cov cub tawg.
4. UrbanMines Tech.: Ib Tus Khub Txhim Khu Kev Ntseeg Siab los ntawm Tuam Tshoj
Raws li kev thov thoob ntiaj teb rau alumina tshwj xeeb loj hlob tuaj, UrbanMines Tech. sawv tawm ua tus neeg muab khoom ntseeg siab nrog kev txawj ntse tob thiab txoj hauv kev tsom mus rau cov neeg siv khoom.
4.1 Kev Ua Zoo Tshaj Plaws ntawm Kev Tsim Khoom
- Peb cov kab ntau lawm tshwj xeeb hauv Suav teb sab hauv tau nruab nrog los tsim cov alumina uas muaj qhov huv siab, qis-alpha nrog kev tswj hwm zoo nruj.
- Peb muab cov khoom ntau thiab tsawg uas hloov tau yooj yim—txij li cov qauv R&D mus txog rau kev tsim khoom tag nrho—ua kom lub sijhawm luv luv thiab muab khoom raws sijhawm.
4.2 Kev Muaj Peev Xwm Kho Kom Haum
- Peb kho qhov huv, qhov faib tawm ntawm cov khoom me me, morphology (spherical / non-spherical), thiab cov qauv tsis huv kom tau raws li cov neeg siv khoom xav tau.
- Kev txhawb nqa kev txawj ntse tau muab los pab nrog kev xaiv cov khoom siv thiab kev koom ua ke.
4.3 Kev ntseeg siab thiab kev txawj ntse xa khoom tawm
- Nrog 16 xyoo ntawm kev paub txog kev lag luam, peb tau tsim kev sib raug zoo mus sij hawm ntev; ntau tshaj 60% ntawm peb cov neeg siv khoom tau ua tus khub rau ntau tshaj 5 xyoos.
- Peb tuav txhua daim ntawv tso cai xa tawm khoom tsim nyog, suav nrog cov khoom lag luam ntsig txog lub ntiaj teb tsis tshua muaj, kom ntseeg tau tias kev xa khoom thoob ntiaj teb zoo thiab ua raws li txoj cai.
4.4 Qhov Zoo ntawm "Ua nyob rau hauv Suav Teb"
- Lub teb chaws Suav txoj kev lag luam uas loj hlob zoo muaj cov txiaj ntsig zoo hauv kev nrhiav cov khoom siv raw, cov thev naus laus zis ua tiav siab heev, thiab kev tsim khoom loj hlob.
- UrbanMines Tech. siv cov zog no thaum ua raws li cov qauv zoo thoob ntiaj teb (ISO, RoHS, REACH).
5. Xaus Lus
Aluminium oxide uas muaj purity siab yog ib qho tseem ceeb uas ua rau muaj kev tsim kho tshiab hauv kev siv hluav taws xob, kev khaws cia lub zog, thiab cov khoom siv ceramic siab heev. Kev ua kom tau raws li cov kev cai nruj ntawm cov ntawv thov niaj hnub no tsis yog tsuas yog xav tau cov khoom siv thev naus laus zis siab heev xwb tab sis kuj xav tau cov khoom siv txhim khu kev qha thiab yooj yim. UrbanMines Tech. muab cov khoom lag luam ua tau zoo nrog kev hloov kho raws li qhov xav tau thiab cov kev pabcuam xa khoom mus rau lwm lub tebchaws, ua rau nws yog tus khub zoo tagnrho rau cov neeg siv khoom thoob ntiaj teb uas tab tom nrhiav cov kev daws teeb meem alumina zoo.
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