Daim ntawv thov teb ntawm carbon / Carbon Composites

Carbon / carbon composites yog cov pa roj carbon raws li cov khoom siv ntxiv nrogcarbon fiber ntau or graphite fiber ntau. Lawv cov qauv carbon tag nrho tsis tsuas yog khaws cov khoom zoo heev thiab hloov tau yooj yim ntawm cov khoom siv fiber ntau, tab sis kuj muaj ntau yam zoo ntawm cov ntaub ntawv carbon, xws li tsis tshua muaj siab, tsis tshua muaj thermal expansion coefficient, siab thermal conductivity, zoo heev tshav kub tsis kam, ablation tsis kam thiab kev sib txhuam, nws yog ib qho tseem ceeb tshwj xeeb tshaj yog cov khoom siv ntawm cov khoom siv ntxiv nrog rau qhov nce ntawm qhov kub thiab txias. kho mob thiab lwm yam.

Cov pa roj carbon / carbon composites tau siv dav hauv aerospace thermal tiv thaiv cov ntaub ntawv thiab aeroengine thermal structural Cheebtsam. Cov neeg sawv cev zoo tshaj plaws ntawm carbon / carbon composites industrialization yog lub dav hlau nres disc ua los ntawm carbon /carbon sib xyaw.

Nyob rau hauv pej xeem teb, carbon / carbon composites yog ntau mature, uas yog siv raws li thermal teb cov ntaub ntawv raumonocrystalline silicon rauv, polycrystalline silicon ingot rauv thiab hydrogenation rauv nyob rau hauv lub tshav pob ntawmhnub ci zog.

Hauv biomedical teb, carbon / carbon composites muaj dav daim ntawv thov kev cia siab vim lawv zoo sib xwselastic modulusthiab biocompatibility nrog cov pob txha pob txha.

Hauv kev lag luam, carbon / carbon composites tuaj yeem siv ua piston thiab txuas cov khoom siv ntawm lub cav diesel. Qhov kev pabcuam kub ntawm carbon / carbon composite diesel cav qhov chaw tuaj yeem nce los ntawm 300 ℃ txog 1100 ℃. Nyob rau tib lub sijhawm, nws qhov ntom ntom yog tsawg, txo cov poob ntawm lub zog, thiab cua sov kev txhim kho tau mus txog 48%; Vim qhov qis coefficient ntawm thermal expansion ntawm C / C composites,lub nplhaib sealings thiab lwm yam khoom siv tsis tuaj yeem siv rau hauv qhov kub thiab txias, uas yooj yim rau cov qauv ntawm cov khoom siv.