Ion-beam mixing and solid-state reaction in Zr-Fe multilayers

A. Paesano, Arthur Thompson Motta, R. C. Birtcher, E. A. Ryan, S. R. Teixeira, M. E. Bruckmann, L. Amaral

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Vapor-deposited Zr-Fe multilayered thin films with various wavelengths and of overall composition either 50% Fe or Fe-rich up to 57% Fe were either irradiated with 300 keV Kr ions at temperatures from 25 K to 623 K to fluences up to 2×1016 cm-2, or simply annealed at 773 K in-situ in the Intermediate Voltage Electron Microscope at Argonne National Laboratory. Under irradiation, the final reaction product is the amorphous phase in all cases studied, but the dose to amorphization depends on the temperature and on the wavelength. In the purely thermal case (annealing at 773 K), the 50-50 composition produces the amorphous phase but for the Fe-rich multilayers the reaction products depend on the multilayer wavelength. For small wavelength, the amorphous phase is still formed, but at large wavelength the Zr-Fe crystalline intermetallic compounds appear. These results are discussed in terms of existing models of irradiation kinetics and phase selection during solid state reaction.

Original languageEnglish (US)
Pages (from-to)419-424
Number of pages6
JournalMaterials Research Society Symposium - Proceedings
StatePublished - 1997

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials


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