Zhuocheng Xu , Xinyi Hao , Yuting Dai , Christian Kübel , Milo S.P. Shaffer , Benjamin Watts , Qianqian Li
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引用次数: 0
摘要
β-SiC纳米颗粒是镁铝合金基纳米复合材料（MgMNCs）中最常见的增强材料之一。由于新相的出现和三维结构的精细尺度，β-SiC 与合金基体之间的界面相互作用非常复杂。本研究旨在探索使用同步辐射扫描透射 X 射线光谱仪（STXM）研究这种界面相互作用的可行性，并为复合材料中存在的一些常见相间晶体获取参考 X 射线吸收光谱（XAS）数据，因为这些数据并不容易获得。在整个研究过程中，开发了一种可靠的程序，用于收集 MgMNCs 样品的 STXM 数据，并收集了 MgMNCs 中存在的 α-Mg、β-Mg17Al12、T2-Al2MgC2、Mg2Si 和 MgO 的参考 XAS 光谱。STXM 和空间分辨 XAS 光谱的可用性不仅对纳米复合合金研究有用，而且在鉴定和量化具有复杂晶体结构和氧化态的相时，广泛适用于整个镁合金研究领域。
β-SiC nanoparticles are one of the most common reinforcements in Mg-Al alloy matrix nanocomposites (MgMNCs). The interfacial interactions between β-SiC and the alloy matrix are complex due to the occurrence of new phases and the fine scale of the 3D architecture. This study aims to explore the feasibility of using synchrotron Scanning Transmission X-ray spectro-Microscopy (STXM) to investigate such interfacial interactions and acquire reference X-ray Absorption Spectroscopy (XAS) data for some common interphase crystals present within the composites, which are not readily available. Throughout this study, a reliable procedure for collecting STXM data on samples derived from MgMNCs was developed, and reference XAS spectra for α-Mg, β-Mg17Al12, T2-Al2MgC2, Mg2Si and MgO present in MgMNCs were collected. The accessibility of STXM and spatially resolved XAS spectrum is not only useful for nanocomposite alloy research but applicable widely across the magnesium alloy research community when identifying and quantifying the phases with complex crystal structures and oxide states.
期刊介绍：
Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance.
Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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