C/C Composite (CFC)

Kev Taw Qhia Txog CFC

Cov khoom tsim los ntawm peb cov ntaub ntawv CFC dhau los ntawm cov txheej txheem tsim khoom dav dav suav nrog kev impregnation, CVD, thiab carbonization, txhawb nqa los ntawm cov chaw tsim khoom zoo tshaj plaws. Cov khoom siv CFC no ua tau raws li cov kev xav tau tshwj xeeb ntawm ntau yam kev siv, suav nrog semiconductors thiab cov txheej txheem loj hlob ntawm crystal.

Cov Nta Tseem Ceeb

-Kev tiv thaiv kub zoo tshaj plaws: Peb cov khoom CFC yog qhov tsim nyog rau kev siv mus sij hawm ntev saum toj no2000°C.

-Qhia tau tias nws tiv taus kev kub hnyiab zoo: Vim nws tso tawm kev ntxhov siab kub zoo, cov khoom siv CFC tsis yooj yim tawg thaum kub hloov pauv sai. Txawm tias tom qab ua ntau zaus, lawv tseem ruaj khov thiab siv tau ntev dua.

-Cov coefficient ntawm kev nthuav dav thermal qis (CTE): Cov coefficient ntawm kev nthuav dav thermal yog0.5 – 2.5 × 10⁻⁶/K, ua kom muaj kev tiv thaiv kab nrib pleb thiab kev tshem tawm kev ntxhov siab thermal zoo

-Anisotropic thermal conductivity tso cai rau kev faib cua sov zoo tshaj plaws los ntawm kev tsim qauv

-Txheej txheem cov qauv nyuaj: Cov ntaub ntawv CFC tsis yog tsuas yog khaws cov txheej txheem yooj yim ntawm cov ntaub ntawv carbon tab sis kuj muaj lub zog siab dua. Yog li ntawd, nws tuaj yeem ua tiav rau hauv cov khoom sib xyaw thiab tsis sib xws xws liloj cov nplhaib txhawb nqa, cov thooj voos kheej kheej qhia kev ntws, cov qauv cua sov, crucibles, thiab lwm yam.

Daim Ntawv Thov

Semicera CFC siv dav hauv cov teb kev lag luam uas muaj qhov kub thiab txias siab, muaj zog thermal cycles thiab cov kev xav tau purity siab:

1. Lub tshav kub ntawm lub cub tawg monocrystalline silicon loj hlob

2. Lub tshav kub thaum lub sijhawm silicon carbide (SiC) crystal loj hlob

3. Cov qauv thermal teb ntawm CVD cov khoom siv

4. Lub Tshuab Nqus Tsev Kub Kub

Peb muab ntau yam khoom tseem ceeb rau cov txheej txheem thermal field, suav nrogkev txhawb nqacov nplhaib, cov khoom siv crucible, cov khoom tuav crucible, cov raj xa dej qhia kev ntws, cov raj rwb thaiv tsev, thiab cov cua sovnyob rau hauv ntau yam specifications.

Cov txiaj ntsig

-Kev Ruaj Ntseg Thermal Zoo Kawg Nkaus:Tswj tau qhov ruaj khov ntawm cov qauv hauv qab qhov kub thiab txias heev, ua kom muaj kev ua haujlwm ruaj khov thaum lub sijhawm semiconductor thiab cov txheej txheem loj hlob ntawm crystal.

-Lub Zog Zoo Kawg Nkaus:Ua ke lub zog siab nrog qhov hnyav tsawg, txo qhov deformation thiab ntev lub neej kev pabcuam ntawm cov khoom tseem ceeb hauv thaj chaw thermal.

-Kev Tiv Thaiv Kev Poob Siab Zoo Tshaj Plaws:Tiv taus kev kub thiab txias sai sai yam tsis tawg, txo qhov kev cuam tshuam ntawm kev tsim khoom thiab kev saib xyuas zaus.

-Lub Neej Ua Haujlwm Ntev Dua:Muab kev ruaj khov siab dua piv rau cov ntaub ntawv graphite ib txwm muaj, txo cov nqi hloov pauv thiab txhim kho kev ua haujlwm zoo.

-Kev Ua Haujlwm Zoo Tshaj Plaws:Muab kev faib cua sov zoo heev thiab kev ruaj khov ntawm qhov ntev, pab txhawb rau kev loj hlob ntawm cov siv lead ua ke thiab cov qoob loo ntau dua.

Cov Lus Qhia Txog Kev Siv

-Cov qauv: Cov roj carbon fiber + cov roj carbon matrix (Cov qauv peb-seem)

-Qhov ceev:1.3–1.9 g/cm³

-Lub zog sib zog:150–300 MPa

-Tus coefficient ntawm kev nthuav dav thermal (CTE):0.5 – 2.5 × 10⁻⁶/K

-Tus nqi nkag (1600–2000°C):10⁻⁷ – 10⁻⁵ s⁻¹