Kev piav qhia txog khoom
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 purity siab, cov khoom siv tso rau ntawm qhov chaw ntawm cov khoom siv coated, tsim cov txheej tiv thaiv SIC.
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 Txheej
| Cov Khoom SiC-CVD | ||
| Cov Qauv Siv Crystal | FCC β theem | |
| Qhov Ceev | g/cm³ | 3.21 |
| Qhov nyuaj | Vickers hardness | 2500 |
| Qhov Loj ntawm Cov Nplej | μm | 2~10 |
| Kev Ntshiab Tshuaj | % | 99.99995 |
| Peev Xwm Kub | J·kg-1 ·K-1 | 640 |
| Kub Sublimation | ℃ | 2700 |
| Lub zog ntawm cov leeg nqaij | MPa (RT 4-point) | 415 |
| Young's Modulus | Gpa (4pt khoov, 1300 ℃) | 430 |
| Kev Nthuav Dav Kub (CTE) | 10-6K-1 | 4.5 |
| Kev ua kom sov tau zoo | (W/mK) | 300 |
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