Effect of electron beam processing on structure of electroexplosion electroerosion-resistant ZnO-Ag coating

PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS WITH HIERARCHICAL STRUCTURE FOR NEW TECHNOLOGIES AND RELIABLE STRUCTURES 2019 Pub Date : 2019-11-19 DOI:10.1063/1.5132162

D. Romanov, S. V. Moskovskii, V. Gromov, Y. Ivanov, A. Semin

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Abstract

The structure, phase composition and properties of the composite electroexplosion coating of ZnO-Ag system subjected to the irradiation by the high intense electron beam have been studied for the first time. The combined processing including the electroexplosion spraying of the coating of ZnO-Ag system and its subsequent electron beam processing results in the formation of multilayer structure of the coating. By the methods of metallography, scanning and transmission electron microscopy, X-ray structural analysis the investigations into the phase and elemental composition, defect substructure of the coating and the transition layer between the coatings and copper electrical contact have been carried out. The electron beam melts and homogenizes the surface layer of the composite electroexplosion coating of ZnO-Ag system to the depth of 35–40 µm. The effect of the electron beam leads to the formation of the nanocrystalline phases of Ag, ZnO, Cu, CuZn, Ag5Zn8, Cu2O, Ag2O, Cu0.67Zn0.33, AgZn.The structure, phase composition and properties of the composite electroexplosion coating of ZnO-Ag system subjected to the irradiation by the high intense electron beam have been studied for the first time. The combined processing including the electroexplosion spraying of the coating of ZnO-Ag system and its subsequent electron beam processing results in the formation of multilayer structure of the coating. By the methods of metallography, scanning and transmission electron microscopy, X-ray structural analysis the investigations into the phase and elemental composition, defect substructure of the coating and the transition layer between the coatings and copper electrical contact have been carried out. The electron beam melts and homogenizes the surface layer of the composite electroexplosion coating of ZnO-Ag system to the depth of 35–40 µm. The effect of the electron beam leads to the formation of the nanocrystalline phases of Ag, ZnO, Cu, CuZn, Ag5Zn8, Cu2O, Ag2O, Cu0.67Zn0.33, AgZn.

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电子束处理对耐电爆电蚀ZnO-Ag镀层组织的影响

本文首次研究了高强度电子束辐照下ZnO-Ag复合电爆炸涂层的结构、相组成和性能。通过对ZnO-Ag体系镀层进行电爆炸喷涂和随后的电子束处理，形成了镀层的多层结构。采用金相、扫描电镜、透射电镜、x射线结构分析等方法，对涂层的物相、元素组成、缺陷子结构以及涂层与铜电接点之间的过渡层进行了研究。电子束对ZnO-Ag复合电爆涂层的表层进行了35 ~ 40µm深度的熔化和均匀化。在电子束的作用下，形成了Ag、ZnO、Cu、CuZn、Ag5Zn8、Cu2O、Ag2O、Cu0.67Zn0.33、AgZn等纳米晶相。本文首次研究了高强度电子束辐照下ZnO-Ag复合电爆炸涂层的结构、相组成和性能。通过对ZnO-Ag体系镀层进行电爆炸喷涂和随后的电子束处理，形成了镀层的多层结构。采用金相、扫描电镜、透射电镜、x射线结构分析等方法，对涂层的物相、元素组成、缺陷子结构以及涂层与铜电接点之间的过渡层进行了研究。电子束对ZnO-Ag复合电爆涂层的表层进行了35 ~ 40µm深度的熔化和均匀化。在电子束的作用下，形成了Ag、ZnO、Cu、CuZn、Ag5Zn8、Cu2O、Ag2O、Cu0.67Zn0.33、AgZn等纳米晶相。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS WITH HIERARCHICAL STRUCTURE FOR NEW TECHNOLOGIES AND RELIABLE STRUCTURES 2019

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