Formation of nano-crystalline structure at the interface in Cu-C composite

A. Berner, D. Fuks, D. E. Ellis, K. Mundim, S. Dorfman

Research output: Contribution to journalArticlepeer-review

31 Scopus citations

Abstract

Formation of Cu-C composite is a difficult technological problem: carbon is practically insoluble in copper. We show that the heat treatment of the Cu-C composite leads to the formation of a thin (approximately 50 nm) interface which provides the bonding between fiber and matrix. The HR SEM study displays the formation of small copper nano-crystals in the interaction zone. This structure of the interface is predicted by molecular dynamic and Monte Carlo simulations with semi-empirical repulsive Cu-C interatomic potentials. We show that inclusion of a small amount of carbon in fee copper leads to strong deformation of the copper host matrix in the vicinity of carbon. Decrease of stresses in the lattice may be reached by the formation of the developed surface in nano-crystalline structure.

Original languageEnglish
Pages (from-to)677-681
Number of pages5
JournalApplied Surface Science
Volume144-145
DOIs
StatePublished - 1 Jan 1999

Keywords

  • Bonding
  • Interfaces
  • Nano-phase
  • SEM
  • Solid solutions

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