Recovery of Pure Platinum and Dilute Platinum-Gold Alloy Electron-Irradiated at Liquid-Nitrogen Temperature
- 15 July 1971
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 4 (2), 281-291
- https://doi.org/10.1103/physrevb.4.281
Abstract
Pure platinum, platinum-0.1-at.%-gold alloy and platinum with various supersatuations of vacancies were irradiated at approximately 90 °K by 3-MeV electrons. The production of damage for these samples did not follow the simple power law widely used. Isothermal annealing in 10 C° temperature intervals in the range - 150 to 100 °C revealed annealing peaks at - 75, 0, and 25 °C. The activation energies of these peaks were determined to be 0.48 ± 0.04, 0.74 ± 0.06, and 0.74 ± 0.06 eV. In addition, the annealing was continued to higher temperatures in 25 °C intervals to investigate the stage at 325 °C. From the dependence of the various peaks upon the preirradiation vacancy concentration, dose, and the results for the alloy samples along with the activation energies, it is suggested that the annealing process at 325 °C (activation energy of 1.45 ± 0.06 eV) associated with the migration of vacancies should be called stage III. In this way the physical phenomenon associated with this stage will correspond to that in other metals, such as Al and Au. The stage around - 75 °C is strongly impurity dependent, being completely suppressed in the 0.1-at.% alloy.Keywords
This publication has 19 references indexed in Scilit:
- Stage III recovery in electron-irradiated platinumRadiation Effects, 1969
- Stage III Annealing Study of Electron-Irradiated Pure AluminumPhysical Review B, 1968
- Recovery of Deuteron-Irradiated PlatinumPhysical Review B, 1967
- Point-Defect Studies in Platinum by Electron Irradiation at Low Temperatures. II. Resistivity Recovery from 10 to 300°KPhysical Review B, 1967
- Stage IV Recovery of Platinum after Electron IrradiationPhysical Review B, 1966
- Resistivity Recovery of Dilute Alloys of Silver, Copper, and Gold, Proton-Irradiated at 80°KPhysical Review B, 1966
- Low-Temperature Recovery Spectra of Neutron-Irradiated MetalsJournal of Applied Physics, 1965
- Experiments on Stage III Annealing in the Noble MetalsPhysical Review B, 1964
- Reactor Damage in Pure MetalsJournal of Applied Physics, 1962
- Electrical Resistivity Study of Lattice Defects Introduced in Copper by 1.25-Mev Electron Irradiation at 80°KPhysical Review B, 1956