Radiation-enhanced diffusion in Ni/Zr diffusion couples
- 15 August 1988
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 64 (4) , 1785-1790
- https://doi.org/10.1063/1.341776
Abstract
Radiation‐enhanced diffusion and ion‐beam mixing in Ni/Zr diffusion couples were investigated. The Kirkendall geometry was employed for this experiment to determine the radiation‐enhanced diffusivities of both Ni and Zr in the amorphous (a‐) NiZr interdiffusion zone. W, Au, and Hf were employed as markers. The activation enthalpy for radiation‐enhanced interdiffusion was determined to be ≊0.4 eV, and Ni was found to be the faster moving species. The dose‐rate dependence of the interdiffusion coefficient in the a‐NiZr was typical of that of crystalline materials and suggests a point‐defect‐like diffusion mechanism in irradiated metallic glasses.This publication has 12 references indexed in Scilit:
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