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

IF 1.4 4区化学 Q4 CHEMISTRY, PHYSICAL

Colloid Journal Pub Date : 2024-05-07 DOI:10.1134/s1061933x23601233

S. L. Lomaev, L. S. Vasil’ev

引用次数: 0

Abstract

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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偏析结构与晶间界过剩体积的关系

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。

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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来源期刊

Colloid Journal 化学-物理化学

CiteScore

2.20

自引率

18.20%

发文量

审稿时长

6-12 weeks

期刊介绍： Colloid Journal (Kolloidnyi Zhurnal) is the only journal in Russia that publishes the results of research in the area of chemical science dealing with the disperse state of matter and surface phenomena in disperse systems. The journal covers experimental and theoretical works on a great variety of colloid and surface phenomena: the structure and properties of interfaces; adsorption phenomena and structure of adsorption layers of surfactants; capillary phenomena; wetting films; wetting and spreading; and detergency. The formation of colloid systems, their molecular-kinetic and optical properties, surface forces, interaction of colloidal particles, stabilization, and criteria of stability loss of different disperse systems (lyosols and aerosols, suspensions, emulsions, foams, and micellar systems) are also topics of the journal. Colloid Journal also includes the phenomena of electro- and diffusiophoresis, electro- and thermoosmosis, and capillary and reverse osmosis, i.e., phenomena dealing with the existence of diffusion layers of molecules and ions in the vicinity of the interface.