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carbon carbon composites

carbon carbon composites

carbon carbon composites

(OP)
What are carbon carbon composites?
How are they made?

Straight to the point or what!

RE: carbon carbon composites

carbon carbon composites or CC (don't mistake it with CMC. that stands for Ceramic Matrix Composite) is carbon fiber embedded in carbon matrix or me can call it : Carbon Fiber Reinforced Carbon . Unfortunately, i have loose my article about the process to make it, i am sorry not helping you futhere!
cheers

RE: carbon carbon composites

Excuse me for my English, but I'm Italian. CC is CMC (carbon matrix composite), and is usually made by CVD (chemical vapor deposition) process on a preform made of carbon fibers. The process, in few words, looks simple: methane is passet at high temperacture throu the preform; at that temperacture CH4 decomposes (partially) in C + 2 H2. Carbon, in this way, "grows" on the fibers.
The problems, in such a kind of work, are the long time requested, the imposibility to obtain a composite without voids, and the necessity of manteining a temperacture gradient.
Regards,
Ghid

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