Cov Tais Ua Los Ntawm Silicon Carbide Ceramic - Cov Tais Uas Ruaj Khoov, Muaj Kev Ua Haujlwm Zoo Rau Kev Siv Thermal thiab Tshuaj Lom Zem
Daim duab qhia ntxaws ntxaws
Kev Taw Qhia Txog Khoom
Cov tais ceramic silicon carbide (SiC) yog cov khoom siv ua tau zoo uas siv dav hauv qhov kub thiab txias, kev thauj khoom ntau, thiab cov tshuaj lom neeg hnyav. Tsim los ntawm cov khoom siv ceramic silicon carbide siab heev, cov tais no tau tsim los muab lub zog kho tshuab zoo heev, kev ua kom sov zoo dua, thiab kev tiv taus zoo heev rau kev poob siab thermal, oxidation, thiab corrosion. Lawv qhov xwm txheej ruaj khov ua rau lawv haum rau ntau yam kev siv hauv kev lag luam suav nrog kev tsim khoom semiconductor, kev ua photovoltaic, sintering ntawm cov khoom hmoov metallurgy, thiab ntau ntxiv.
Cov tais silicon carbide ua haujlwm ua cov neeg nqa khoom tseem ceeb lossis kev txhawb nqa thaum lub sijhawm kho cua sov uas qhov tseeb ntawm qhov ntev, kev ncaj ncees ntawm cov qauv, thiab kev tiv thaiv tshuaj lom neeg yog qhov tseem ceeb. Piv rau cov ntaub ntawv ceramic ib txwm muaj xws li alumina lossis mullite, SiC tais muab kev ua tau zoo dua, tshwj xeeb tshaj yog nyob rau hauv cov xwm txheej uas muaj kev rov ua dua thermal cycling thiab huab cua nruj.
Cov Txheej Txheem Tsim Khoom & Cov Khoom Siv Sib xyaw
Kev tsim cov tais ceramic SiC muaj kev tsim kho kom raug thiab cov thev naus laus zis sintering siab heev kom ntseeg tau tias muaj qhov ceev ceev, cov qauv me me sib xws, thiab kev ua haujlwm zoo sib xws. Cov kauj ruam dav dav suav nrog:
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Kev Xaiv Khoom Siv Raw
Cov hmoov silicon carbide uas muaj purity siab (≥99%) raug xaiv, feem ntau nrog kev tswj qhov loj me ntawm cov khoom me me thiab cov khoom tsis huv tsawg kawg nkaus kom lav tau cov khoom siv kho tshuab thiab thermal siab. -
Cov Txheej Txheem Tsim
Nyob ntawm cov lus qhia ntawm lub tais, cov txheej txheem sib txawv raug siv:-
Kev Nias Txias Isostatic (CIP) rau cov khoom sib xyaw ua ke uas muaj qhov ceev thiab sib xws
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Extrusion los yog slip casting rau cov duab nyuaj
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Kev txhaj tshuaj molding rau cov qauv geometries meej thiab ntxaws
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Cov Txheej Txheem Sintering
Lub cev ntsuab raug sintered ntawm qhov kub siab heev, feem ntau nyob rau hauv qhov ntau ntawm 2000 ° C, nyob rau hauv inert lossis vacuum atmospheres. Cov txheej txheem sintering feem ntau suav nrog:-
Cov tshuaj tiv thaiv sib raug zoo SiC (RB-SiC)
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SiC Sintered Tsis Muaj Siab (SSiC)
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Recrystallized SiC (RBSiC)
Txhua txoj kev ua rau muaj cov khoom siv sib txawv me ntsis, xws li porosity, lub zog, thiab thermal conductivity.
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Kev Ua Haujlwm Zoo Tshaj Plaws
Tom qab sintering, cov tais raug tshuab kom ua tiav qhov ntev nruj, qhov chaw du, thiab tiaj tus. Kev kho qhov chaw xws li lapping, sib tsoo, thiab polishing tuaj yeem siv raws li cov neeg siv khoom xav tau.
Cov Ntawv Thov Ib Txwm Muaj
Cov tais ceramic silicon carbide siv rau hauv ntau yam lag luam vim lawv muaj peev xwm hloov pauv tau yooj yim thiab muaj zog. Cov ntawv thov feem ntau suav nrog:
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Kev Lag Luam Semiconductor
Cov tais SiC yog siv ua cov khoom nqa thaum lub sijhawm wafer annealing, diffusion, oxidation, epitaxy, thiab implantation. Lawv qhov kev ruaj khov ua kom muaj kev faib tawm kub sib npaug thiab tsawg kawg nkaus. -
Kev Lag Luam Photovoltaic (PV)
Hauv kev tsim cov roj teeb hnub ci, SiC cov tais txhawb nqa cov silicon ingots lossis wafers thaum lub sijhawm kub siab diffusion thiab sintering kauj ruam. -
Hmoov Metallurgy thiab Ceramics
Siv rau kev txhawb nqa cov khoom thaum lub sijhawm sintering ntawm cov hmoov hlau, ceramics, thiab cov ntaub ntawv sib xyaw. -
Iav thiab Cov Vaj Huam Sib Luag
Siv ua cov tais kiln lossis platforms rau kev tsim cov tsom iav tshwj xeeb, LCD substrates, lossis lwm yam khoom siv kho qhov muag. -
Kev Ua Tshuaj Lom Zem thiab Cov Cub Hluav Taws Kub
Ua haujlwm ua cov khoom thauj uas tiv taus xeb hauv cov tshuaj reactors lossis ua cov tais txhawb nqa thermal hauv lub tshuab nqus tsev thiab cov cua sov tswj tau.
Cov yam ntxwv tseem ceeb ntawm kev ua tau zoo
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✅Kev Ruaj Ntseg Thermal Zoo Tshaj Plaws
Siv tau ntev hauv qhov kub txog li 1600–2000 ° C yam tsis muaj kev sib txhuam lossis kev puas tsuaj. -
✅Muaj Zog Kho Tshuab Siab
Muaj lub zog flexural siab (feem ntau > 350 MPa), ua kom ntseeg tau tias muaj zog ntev txawm tias nyob rau hauv cov xwm txheej hnyav. -
✅Kev Tiv Thaiv Kev Kub Ntxhov
Kev ua tau zoo heev nyob rau hauv ib puag ncig uas muaj kev hloov pauv sai ntawm qhov kub thiab txias, txo qhov kev pheej hmoo ntawm kev tawg. -
✅Kev Tiv Thaiv Kev Xeb thiab Kev Oxidation
Tshuaj lom neeg ruaj khov nyob rau hauv feem ntau cov kua qaub, alkalis, thiab oxidizing / txo cov pa roj, tsim rau cov txheej txheem tshuaj lom neeg hnyav. -
✅Qhov Tseeb thiab Qhov Sib Npaug
Tshuab kom raug siab, xyuas kom meej tias kev ua tiav zoo ib yam thiab sib xws nrog cov tshuab tsis siv neeg. -
✅Lub Neej Ntev & Kev Siv Nyiaj Tau Zoo
Cov nqi hloov pauv qis dua thiab cov nqi kho kom tsawg dua ua rau nws yog ib qho kev daws teeb meem uas tsim nyog rau lub sijhawm.
Cov Lus Qhia Txog Kev Siv
| Cov Qauv | Tus nqi ib txwm muaj |
|---|---|
| Khoom siv | Cov SiC Uas Muaj Kev Sib Txuas Lus / Sintered SiC |
| Kub Tshaj Plaws Ua Haujlwm | 1600–2000°C |
| Lub zog flexural | ≥350 MPa |
| Qhov Ceev | ≥3.0 g/cm³ |
| Kev Ua Kub | ~120–180 W/m·K |
| Qhov Chaw Tiaj Nto | ≤ 0.1 hli |
| Qhov tuab | 5–20 hli (kho tau) |
| Qhov Loj | Txheem: 200 × 200 hli, 300 × 300 hli, thiab lwm yam. |
| Qhov Chaw Tiav | Tshuab, txhuam (thaum thov) |
Cov Lus Nug Feem Ntau (FAQ)
Q1: Cov tais silicon carbide puas siv tau rau hauv cov cub tawg?
A:Yog lawm, cov tais SiC zoo tagnrho rau cov chaw nqus tsev vim lawv cov pa tawm tsawg, kev ruaj khov tshuaj lom neeg, thiab kev tiv taus kub siab.
Q2: Puas muaj cov duab lossis qhov chaw tshwj xeeb?
A:Muaj tseeb tiag. Peb muab cov kev pabcuam kho kom haum rau koj xws li qhov loj ntawm lub tais, cov duab, cov yam ntxwv ntawm qhov chaw (piv txwv li, cov qhov, cov qhov), thiab kev txhuam kom tau raws li cov neeg siv khoom xav tau.
Q3: SiC piv rau alumina lossis quartz trays li cas?
A:SiC muaj zog dua, ua kom muaj cua sov zoo dua, thiab tiv taus kev kub hnyiab thiab kev xeb ntawm cov tshuaj lom neeg. Txawm hais tias alumina pheej yig dua, SiC ua haujlwm tau zoo dua hauv cov chaw nyuaj.
Q4: Puas muaj qhov tuab txheem rau cov tais no?
A:Feem ntau qhov tuab yog nyob rau hauv qhov ntau ntawm 5–20 hli, tab sis peb tuaj yeem hloov kho nws raws li koj daim ntawv thov thiab qhov yuav tsum tau ua ntawm lub nra hnyav.
Q5: Lub sijhawm ua cov tais SiC uas tau kho kom haum rau lub sijhawm yog dab tsi?
A:Lub sijhawm ua khoom sib txawv nyob ntawm qhov nyuaj thiab qhov ntau tab sis feem ntau yog li ntawm 2 txog 4 lub lis piam rau cov xaj tshwj xeeb.
Txog Peb
XKH muaj kev txawj ntse hauv kev tsim khoom, kev tsim khoom, thiab kev muag khoom ntawm cov iav kho qhov muag tshwj xeeb thiab cov khoom siv siv lead ua tshiab. Peb cov khoom siv rau cov khoom siv hluav taws xob kho qhov muag, cov khoom siv hluav taws xob rau cov neeg siv khoom, thiab cov tub rog. Peb muab cov khoom siv kho qhov muag Sapphire, cov ntaub thaiv lub xov tooj ntawm tes, Ceramics, LT, Silicon Carbide SIC, Quartz, thiab semiconductor crystal wafers. Nrog kev txawj ntse thiab cov cuab yeej siv tshiab, peb ua tau zoo hauv kev ua cov khoom tsis yog tus qauv, lub hom phiaj yog ua lub tuam txhab ua khoom siv hluav taws xob kho qhov muag zoo tshaj plaws.
