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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Diversification of MgO//Mg interfacial crystal orientations during oxidation: A density functional theory study
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Diversification of MgO//Mg interfacial crystal orientations during oxidation: A density functional theory study

机译:氧化过程中MgO // Mg界面晶体取向的多样化:密度泛函理论研究

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In this work we use computer simulations to explain the variety of crystal orientations observed at interfaces between MgO and Mg when Mg single crystals are oxidized. Using first-principles density functional theory simulations we investigate the interfacial stability of MgO//Mg interfaces, and find that a combination of interfacial chemical bonding energy and epitaxial strain stored in the oxide layers can change the relative stability of competing MgO//Mg interfaces. We propose that a combination of the oxygen chemical potential at the interface plane and the epitaxial strain energy stored in the oxide layers is responsible for the differences in observed interfacial crystal orientationsea key insight for the design and development of Mg alloys reinforced by MgO particles. (C) 2016 The Authors. Published by Elsevier B.V.
机译:在这项工作中,我们使用计算机模拟来解释当Mg单晶被氧化时在MgO和Mg之间的界面处观察到的各种晶体取向。使用第一原理密度泛函理论模拟,我们研究了MgO // Mg界面的界面稳定性,发现界面化学键合能和存储在氧化层中的外延应变的组合可以改变竞争的MgO // Mg界面的相对稳定性。 。我们认为,界面平面上的氧化学势与存储在氧化物层中的外延应变能的结合是导致观察到的界面晶体取向差异的原因,这是设计和开发由MgO颗粒增强的Mg合金的关键见解。 (C)2016作者。由Elsevier B.V.发布

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