偏析结构与晶间界过剩体积的关系

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2024-05-07 DOI:10.1134/S1061933X23601233

S. L. Lomaev, L. S. Vasil’ev

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引用次数: 0

摘要

摘要该研究致力于分析晶间边界过大体积对多晶体中杂质原子偏析结构的影响所产生的非线性效应。研究表明，吸附等温线可以描述杂质原子在晶间界平面上分布的不均匀性。这表明在多晶体的内部边界存在吸附点。事实证明，晶间边界的过剩体积是决定边界杂质偏析程度的主要参数。

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Dependence of the Structure of Segregations on the Excess Volume of Intergranular Boundaries

The work is devoted to the analysis of the nonlinear effects resulting from the influence of excess volumes of intergranular boundaries on the structure of segregations of impurity atoms in polycrystals. It is shown that the adsorption isotherm can describe the nonuniformities in the distribution of impurity atoms in the plane of an intergranular boundary. This suggests the existence of adsorption sites at the internal boundaries of polycrystals. It is proven that an excess volume of intergranular boundaries is the main parameter determining the magnitude of impurity segregations at the boundaries.

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

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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