Ns. Wheeler et Ds. Lashmore, ELECTRODEPOSITED COBALT-TUNGSTEN AS A DIFFUSION BARRIER BETWEEN GRAPHITE FIBERS AND NICKEL, Journal of composites technology & research, 17(4), 1995, pp. 301-307
An electrodeposited cobalt alloy coating having a composition of 7.1 /- 0.8 at % tungsten was developed to serve as a diffusion barrier bet
ween graphite fibers and nickel. A nickel matrix was electrodeposited
around the fibers, and the resulting composite was annealed in vacuum
under various time/temperature conditions. The coating was shown to in
hibit interdiffusion for up to 24 h at 800 degrees C. This represents
an improvement of 200 degrees over the uncoated fibers.