利用电子束的三位一体效应构建嫦娥五号月球土壤的原位表面溶解。

IF 2 3区 工程技术 Q2 ANATOMY & MORPHOLOGY
Zhou Jiang, Xiujuan Li, Meiqi Liu, Hongtao Cao, Nailin Yue, Rui Zhang, Zhenyu Hu, Li Liu, Meng Zou, Wei Zhang
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引用次数: 0

摘要

众所周知,电子束与材料表面之间的相互作用会产生多种物理现象,对功能应用具有重要启发意义。本文通过扫描电子显微镜观察并记录了嫦娥五号月球样品中玄武岩相的原位表面溶解过程。能量色散 X 射线光谱分析证实了斜长石和辉石等金属氧化物的主要存在。在电子束辐照下,由于电子束的能量超过了金属氧化物键的解离能,这些成分发生了原位动态质量损失和辐射分解,导致了有趣的原位表面溶解。在实验条件下,电子束的热效应可以忽略不计。或者说,电子束诱导电场-辐射分解-电子束沉积 "三位一体 "是驱动表面溶解的关键因素。我们的研究结果不仅加深了我们对月球土壤物理和化学性质的理解,也为未来月球土壤的功能应用奠定了基础。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

In Situ Surface Exsolution of Chang'e-5 Lunar Soil Architected by the Trinity Effect of Electron Beam

In Situ Surface Exsolution of Chang'e-5 Lunar Soil Architected by the Trinity Effect of Electron Beam

It is known that the interaction between electron beam and material surface enables a variety of physical phenomena, which hold significant inspiration for functional application. Herein, the process of in situ surface exsolution was observed and documented for the basalt phase in the Chang'e-5 lunar samples via scanning electron microscopy. Energy dispersive x-ray spectroscopy analysis confirmed the main existence of metal oxides such as plagioclase and pyroxene. Under electron beam irradiation, these components have undergone in situ dynamic mass loss and radiation decomposition, leading to an interesting in situ surface exsolution, as the energy of the electron beam exceeds the dissociation energy of metal-oxide bonds. It is clarified that the thermal effect of the electron beam is negligible under the experimental conditions. Alternatively, the “trinity” of electron beam-induced electric field-radiolysis-electron beam deposition is the key factor driving the surface exsolution. Our result not only deepens our understanding of the physical and chemical properties of lunar soil but also lays the groundwork for future applications of lunar soil for functional application.

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来源期刊
Microscopy Research and Technique
Microscopy Research and Technique 医学-解剖学与形态学
CiteScore
5.30
自引率
20.00%
发文量
233
审稿时长
4.7 months
期刊介绍: Microscopy Research and Technique (MRT) publishes articles on all aspects of advanced microscopy original architecture and methodologies with applications in the biological, clinical, chemical, and materials sciences. Original basic and applied research as well as technical papers dealing with the various subsets of microscopy are encouraged. MRT is the right form for those developing new microscopy methods or using the microscope to answer key questions in basic and applied research.
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