Diffusivity of carbon in the copper matrix. Influence of alloying Academic Article uri icon


  • The heights of diffusion barriers for copper-based composite materials with carbon whiskers or fibers are calculated. It is shown that the alloying of the matrix by an additional element, substituting copper in an interstitial CuC solid solution, changes the value of the barrier and the migration entropy. This substitutional impurity influences the diffusion of the carbon-copper matrix. Zirconium as the best alloying element for preventing the diffusion of carbon in CuC alloy is predicted.

publication date

  • January 1, 1996