Bulk Cu/V multilayers simultaneously possess high strength and excellent radiation resistance thanks to their high density of interfaces. Irradiation-induced atomic mixing of Cu/V multilayers has been less investigated. Here, we investigate the ion irradiation of bulk Cu/V multilayers exposed to or He+ ions at 350°C. The microstructure and elemental distribution are investigated by transmission electron microscopy and energy dispersive x-ray spectroscopy. Facetted bubbles and atomic mixing are observed after ion irradiation. The possible mechanisms of irradiation-induced atomic mixing are discussed.

中文翻译：

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V/Cu多层膜的离子辐照引起的原子混合

由于其高密度的界面，块状 Cu/V 多层膜同时具有高强度和出色的耐辐射性。Cu/V 多层膜的辐射诱导原子混合研究较少。在这里，我们研究了在 350°C 下暴露于 He+ 离子的块状 Cu/V 多层膜的离子辐照。通过透射电子显微镜和能量色散X射线光谱研究微观结构和元素分布。离子照射后观察到多面气泡和原子混合。讨论了辐射诱导的原子混合的可能机制。