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Abstract Epitaxial nanotwinned Cu film with abundant nanovoids surrounding domain boundaries was subjected to Kr ++ ion irradiation inside a transmission electron microscope at various dose rates. Irradiation-induced defect clusters… Click to show full abstract
Abstract Epitaxial nanotwinned Cu film with abundant nanovoids surrounding domain boundaries was subjected to Kr ++ ion irradiation inside a transmission electron microscope at various dose rates. Irradiation-induced defect clusters distributed preferentially near domain boundaries during the early stage of radiation. Meanwhile, the pre-existing nanovoids continuously shrank. This study suggests that the defect network enabled by the unique combination of nanotwins and nanovoids may significantly enhance the radiation tolerance of metallic materials.
Journal Title: Journal of Nuclear Materials
Year Published: 2017
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