From the journal titled "Carbon Fiber Material in Musical Instrument Making". Ze Hong Wu and Jia Hui Li write that carbon fiber can be used for avoiding the wood cracking problem in your musical instrument.
In their paper, carbon fiber not only about alternative musical instrument materials but also answer about environment problem. In China, every cello use 0.06 m3 of woods. Every vieola use 0.025 m3, and violin 0.2 m3. And every year, to make that violins family China spend about 24,000 m3 of woods.
Beside it, carbon fiber as a musical instrument materials have a richer sound then a woods.So, which one you choose? Carbon Fibers or Woods ones?