Ion-induced solid solution and ordered compound formation in Au/Cu bilayers uri icon

abstract

  • Ion mixing of Au/Cu bilayers has been investigated using He ion backscattering, x-ray diffraction, and transmission electron diffraction techniques. When Au/Cu bilayers are subjected to Ar or Xe ion irradiation at doses of about 1016 ions/cm2 at room temperature, Cu is completely mixed with Au to form a substitutional solid solution with a graded composition. There was no evidence for the presence of crystal compounds. The formation of ordered compounds is achieved either by the mixing of Au/Cu bilayers with Ar ions at 200C or by a He ion irradiation of the mixed layers at 60C. Similar results have been observed when the mixed samples were subjected to heat treatment at 350C. The observations indicate that the phase formation by ion mixing is related to the atomic mobility at the target temperature during implantation.

published proceedings

  • Journal of Applied Physics

author list (cited authors)

  • Hung, L. S., Nastasi, M., & Mayer, J. W.

citation count

  • 5

complete list of authors

  • Hung, LS||Nastasi, M||Mayer, JW

publication date

  • September 1984