5. Conclusion
While isotropic ex-brai carbon fibers have been widely developed for thermal applications, ex-PAN carbon fibers clearly outperform mesophase ex-brai fibers in the field of reinforcement fibers. Indeed, the production costs of ex-PAN fibers are more competitive than those of ex-brai mesophase fibers. The latter remain competitive only for very high modulus fibers.
The properties of ex-PAN carbon fibers have been greatly improved, as has the knowledge of composite design offices.
Many carbon fiber applications have yet to be developed. Of course, it's not a question of using carbon fibers for every application; the performance/cost ratio remains the overriding consideration, including all manufacturing, inspection and maintenance costs.
All future aeronautical programs will be based not only on carbon fiber composites,...
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Economic data
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Carbon fiber prices
They are highly dependent on the quality of the carbon fibers and the inspection and testing costs demanded by customers.
We can give a range of sales prices from 20 to 150 euros/kg, staying within classic carbon fiber categories, i.e. without going into very "specific" fibers with very high modulus.
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