Cov pa roj carbon/cov pa roj carbon sib xyaw (C/C sib xyaw ua ke) yog cov khoom siv sib xyaw ua ke uas muaj cov roj carbon fiber ntau thiab cov carbon matrix. Nws lub ntsiab lus tseem ceeb yog nws cov khoom sib xyaw ua ke uas muaj cov roj carbon fiber ntau, qhov twg cov carbon fiber network ua haujlwm ua lub hauv paus ntawm cov qauv, thaum cov carbon matrix uas tsim los ntawm pyrolytic carbon lossis resin carbonization ua haujlwm ua cov khoom sau, ua tiav kev sib txuas ruaj khov thiab tawv ntawm qib microscopic.
Cov ntaub ntawv paub txog cov khoom no thaum ub yog thaum nws nrhiav tau hauv chav kuaj mob hauv Tebchaws Meskas xyoo 1958. Nws cov txheej txheem tsim khoom tau hloov zuj zus los ntawm kev nce qib hauv kev siv tshuab xws li kev tso pa tshuaj lom neeg (CVD) thiab kev ua kua dej, ua rau nws yog ib ceg tseem ceeb ntawm cov khoom siv kub siab niaj hnub. Lub hauv paus tseem ceeb, cov khoom sib xyaw carbon/carbon ua tiav cov qauv tshwj xeeb uas sib xyaw cov khoom sib dua nrog lub zog siab los ntawm kev sib phim cov carbon fibers thiab ua kom cov carbon matrix ntom, muab cov kev daws teeb meem tshiab rau cov chaw ib puag ncig hnyav.
Cov khoom sib xyaw ua los ntawm carbon/carbon qhia tau tias lawv muaj cov yam ntxwv zoo tshaj plaws thoob plaws ntau qhov ntev, ua rau lawv tsis tuaj yeem hloov pauv tau hauv qhov chaw kub heev. Ua ntej, lawv qhov ceev yog li ntawm 1.5 txog 2.0 g/cm³, tsawg dua ib feem plaub ntawm cov superalloys uas muaj nickel, tab sis lawv ua tiav kev txhim kho tseem ceeb hauv lub zog tshwj xeeb thiab kev tawv.
Qhov txawv txav yog lawv qhov kev ua haujlwm thermal kuj zoo ib yam: lawv khaws cov qauv ruaj khov saum 1,650 ° C, nrog rau qhov txwv siab tshaj plaws ntawm 2,600-3,500 ° C, ua rau lawv yog tib yam khoom siv kub siab uas muaj peev xwm ua haujlwm ntawm qhov kub tshaj 3,000 ° C.
Nyob rau hauv qhov kub thiab txias, cov khoom no muaj qhov coefficient qis ntawm kev nthuav dav thermal (<1 × 10⁻⁶/°C) thiab zoo heev thermal shock tiv taus, txo qhov tawg hauv qab cua sov lossis txias sai. Mechanical, nws lub zog flexural nce nrog rau qhov kub thiab txias, tshaj qhov ua tau zoo hauv chav tsev ntawm 2,000 ° C.
Tsis tas li ntawd xwb, nws muaj kev ua tau zoo ntawm cov cua sov (200 W/m·K raws li kev taw qhia ntawm cov fiber), cov khoom zoo tshaj plaws ntawm tribological (kev sib txhuam ntawm 0.2-0.4), thiab kev ruaj khov ntawm qhov ntev. Kev sib xyaw ua ke ntawm cov khoom no ua kom muaj kev ua haujlwm ruaj khov hauv qab qhov xwm txheej hnyav, suav nrog cua sov heev, kev thauj khoom siab, thiab kev xeb muaj zog, tso lub hauv paus rau kev siv tshiab hauv aerospace, lub zog rov ua dua tshiab, thiab lwm yam teb.
Vim lawv cov yam ntxwv tshwj xeeb,cov khoom sib xyaw ua ke carbon / carbontau pom cov ntawv thov dav dav thoob plaws ntau yam kev lag luam.
Kev tsav dav hlau
Hauv kev lag luam aerospace, cov khoom sib xyaw carbon/carbon yog cov khoom siv xaiv rau cov khoom kub siab. Piv txwv li, cov rocket nozzles, turbine blades hauv cov cav dav hlau, thiab cov tshuab tiv thaiv thermal rau cov tsheb rov nkag siv cov khoom siv no. Lawv qhov kev tiv taus kub siab thiab cov yam ntxwv tsis hnyav ua rau lawv zoo tagnrho rau spacecraft thiab dav hlau.
Kev Lag Luam Tsheb
Vim muaj kev thov kom siv roj tsawg dua thiab tiv thaiv ib puag ncig hauv tsheb, cov khoom sib xyaw carbon/carbon tau nkag mus rau hauv kev lag luam tsheb, tshwj xeeb tshaj yog hauv kev sib tw. Lawv lub zog siab thiab lub teeb yuag ua rau lub tsheb hnyav dua, ua rau kev nrawm dua thiab kev tswj hwm zoo dua. Cov disc nres carbon/carbon kuj tau siv dav hauv cov tsheb supercars thiab cov tsheb sib tw.
Kev lag luam metallurgy
Hauv kev ua hlau, cov khoom sib xyaw carbon/carbon feem ntau yog siv rau hauv cov khoom siv cua sov kub thiab cov tshuab smelting. Lawv qhov kev tiv thaiv cua sov thiab kev xeb zoo heev ua rau kev ua haujlwm ruaj khov hauv qhov chaw ib puag ncig hnyav, ua kom cov txheej txheem smelting du.
Electronics & Zog
Qhov ua tau hluav taws xob ntawm cov khoom sib xyaw ua los ntawm carbon/carbon ua rau lawv siv tau rau hauv cov khoom siv hluav taws xob. Piv txwv li, hauv qee cov khoom siv hluav taws xob muaj zog heev, cov ntaub ntawv no pab kom muaj kev tso cua sov tawm zoo, yog li ua kom kev ua haujlwm ruaj khov thiab lub neej ntev dua.
Tsis tas li ntawd xwb, nws cov ntawv thov txuas ntxiv nthuav dav hauv cov xwm txheej xws li semiconductor wafer tsim cov thermal fields, nuclear reactor neutron moderators, thiab kev cog pob txha kho mob. Nws tau kwv yees tias qhov loj ntawm kev lag luam thoob ntiaj teb yuav tshaj 17 billion yuan los ntawm xyoo 2025.
Lub sijhawm tshaj tawm: Cuaj hlis-30-2025