Self-organized Cu-Ag nanocomposites synthesized by intermediate temperature ion-beam mixing

Raúl A. Enrique, Pascal Bellon

Research output: Contribution to journalArticlepeer-review


We perform an investigation of ion-beam mixing in the immiscible system Ag-Cu based on cross-sectional transmission electron microscopy. Multilayered samples consisting of ten periods of (6.7 nm Cu/11.2 nm Ag) are irradiated at temperatures ranging from 25 to 225 °C with normally incident 1 MeV Kr ions to doses in the range 1-2X1016ion/cm2, enough to reach a nonequilibrium dynamical steady state. Regardless of the irradiation temperature, extensive grain growth takes place. At intermediate temperatures, competition between thermal decomposition and irradiation mixing results in a nanometer-scale phase separation. This spontaneous decomposition demonstrates that ion-beam mixing can be used as a processing tool to synthesize nanocomposite materials.

Original languageEnglish (US)
Pages (from-to)4178-4180
Number of pages3
JournalApplied Physics Letters
Issue number26
StatePublished - Jun 25 2001

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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