STAGE IV RECOVERY OF PLATINUM AFTER ELECTRON IRRADIATION

The activation energy of the stage IV resistivity recovery after electron irradiation of platinum has been measured to be 1.36\ifmmode\pm\else\textpm\fi{}0.08 eV. The recovery is due to the migration of single vacancies. A model of diffusion to inexhaustible internal sinks, complicated by a vacancy-impurity trapping interaction, is found to describe the platinum recovery data. In addition, the stage IV recovery of deformed nickel is found to follow the same recovery model.

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