Citation:

Naia, Duarte M., P. M. Gordo, O. M. N. D. Teodoro, De A. P. Lima, A. M. C. Moutinho, and R. S. Brusa. "{Sub-surface Defects induced by Low Energy Ar + Sputtering of Silver}." Materials science forum. 514-516 (2006): 1608-1612.

Abstract:

Induced defects in silver polycrystalline samples irradiated with 4 keV Ar+ were characterised with slow positron implantation spectroscopy. The implanted gas was found to interact with ion irradiation defects. The evolution of the defects and gas-defect interactions were followed through a multi-step isochronal annealing treatment. Two different defected regions were detected. A region near to the surface, due to a distribution of vacancy-like defects produced by irradiation, and a deeper one due to coalescence of Ar. The deeper defects evolve with thermal treatments and probably produce cavities which are not easily recovered.

Notes:

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