Zoo zoo pib nrog; kev pabcuam yog qhov tseem ceeb tshaj plaws; lub koom haum yog kev koom tes "yog peb lub tswv yim kev lag luam uas peb lub tuam txhab tau saib xyuas thiab ua raws li tus nqi pheej yig Tuam Tshoj Kub Siab Tiv Thaiv Molybdenum Graphite Crucible Hlau Melting Pot, Pom kev ntseeg! Peb zoo siab tos txais cov neeg siv khoom tshiab txawv teb chaws los teeb tsa kev sib cuag ntawm lub tuam txhab thiab tseem xav kom sib koom ua ke kev sib cuag nrog txhua tus neeg siv khoom ntev.
Qhov zoo pib nrog; kev pabcuam yog qhov tseem ceeb; lub koom haum yog kev koom tes "yog peb lub tswv yim lag luam uas peb lub tuam txhab tau saib xyuas thiab ua raws li tas liTuam Tshoj Molybdenum Crucible, Cov Crucibles Muag, Peb muab kev pabcuam uas muaj kev paub dhau los, teb sai sai, xa khoom raws sijhawm, zoo heev thiab tus nqi zoo tshaj plaws rau peb cov neeg siv khoom. Kev txaus siab thiab kev lees paub zoo rau txhua tus neeg siv khoom yog peb qhov tseem ceeb. Peb tsom mus rau txhua qhov kev txiav txim kom txog thaum lawv tau txais cov khoom lag luam zoo thiab muaj kev pabcuam zoo thiab tus nqi pheej yig. Nyob ntawm qhov no, peb cov khoom muag tau zoo heev hauv cov tebchaws hauv Africa, Mid-East thiab Southeast Asia. Ua raws li lub tswv yim ua lag luam ntawm "cov neeg siv khoom ua ntej, ua ntej", peb zoo siab tos txais cov neeg siv khoom los ntawm tsev thiab txawv teb chaws los koom tes nrog peb.
Cov khoom sib xyaw ua los ntawm cov pa roj carbon / carbon(txij no mus hu ua "C / C lossis CFC”) yog ib hom khoom sib xyaw ua ke uas yog ua los ntawm carbon thiab txhawb nqa los ntawm carbon fiber thiab nws cov khoom (carbon fiber preform). Nws muaj ob qho tib si inertia ntawm carbon thiab lub zog siab ntawm carbon fiber. Nws muaj cov khoom siv kho tshuab zoo, tiv taus cua sov, tiv taus corrosion, txhuam damping thiab thermal thiab hluav taws xob conductivity yam ntxwv.
CVD-SiCtxheej muaj cov yam ntxwv ntawm cov qauv sib xws, cov khoom siv compact, kub tsis kam, oxidation tsis kam, siab purity, acid & alkali tsis kam thiab organic reagent, nrog cov khoom ruaj khov thiab tshuaj lom neeg.
Piv nrog cov ntaub ntawv graphite uas muaj cov khoom purity siab, graphite pib oxidize ntawm 400C, uas yuav ua rau poob cov hmoov vim yog oxidation, ua rau muaj kuab paug rau ib puag ncig rau cov khoom siv peripheral thiab cov chaw nqus tsev, thiab ua rau cov khoom tsis huv ntawm ib puag ncig uas muaj cov khoom purity siab nce ntxiv.
Txawm li cas los xij, SiC txheej tuaj yeem tswj tau lub cev thiab tshuaj lom neeg ruaj khov ntawm 1600 degrees, Nws yog dav siv hauv kev lag luam niaj hnub, tshwj xeeb tshaj yog hauv kev lag luam semiconductor.
Peb lub tuam txhab muab cov kev pabcuam txheej txheem SiC los ntawm CVD txoj kev rau ntawm qhov chaw ntawm graphite, ceramics thiab lwm yam khoom siv, yog li cov pa roj tshwj xeeb uas muaj cov pa roj carbon thiab silicon teb rau qhov kub siab kom tau txais cov khoom siv SiC ntshiab siab, cov khoom siv tso rau ntawm qhov chaw ntawm cov khoom siv coated, tsim cov txheej tiv thaiv SIC. Cov SIC tsim tau sib txuas ruaj khov rau lub hauv paus graphite, muab cov khoom tshwj xeeb rau lub hauv paus graphite, yog li ua rau qhov chaw ntawm graphite compact, tsis muaj porosity, tiv taus kub siab, tiv taus corrosion thiab tiv taus oxidation.
Cov yam ntxwv tseem ceeb:
1. Kev tiv thaiv oxidation kub siab:
qhov kev tiv thaiv oxidation tseem zoo heev thaum qhov kub siab txog 1600 C.
2. Kev huv siab: ua los ntawm cov tshuaj lom neeg ua pa hauv qab qhov kub siab chlorination.
3. Kev tiv thaiv kev yaig: kev nyuaj siab, qhov chaw me me, cov khoom me me.
4. Kev tiv thaiv corrosion: acid, alkali, ntsev thiab cov organic reagents.
Cov Lus Qhia Tseem Ceeb ntawm CVD-SIC Coatings:
| SiC-CVD | ||
| Qhov Ceev | (g/cc)
| 3.21 |
| Lub zog flexural | (Mpa)
| 470 |
| Kev nthuav dav thermal | (10-6/K) | 4
|
| Kev ua kom sov tau zoo | (W/mK) | 300
|
