Surface Segregation of Components in Sn–Pb Solid Alloys

IF 0.8 4区化学 Q4 CHEMISTRY, PHYSICAL

Russian Journal of Physical Chemistry A Pub Date : 2025-07-06 DOI:10.1134/S0036024425701018

O. G. Ashkhotov, I. B. Ashkhotova, T. T. Magkoev

引用次数: 0

Abstract

The surface segregation of components in Sn–Pb solid alloys was studied by Auger electron spectroscopy. The amplitudes of the Sn and Pb Auger peaks in the spectra of the solid alloys were measured. The surface content of lead at different volume concentrations and temperatures was calculated based on the obtained experimental data, which made it possible to study lead segregation caused by changes in the given parameters. The surface activity of tin was established in the solid β-solutions, and significant segregation of lead, in the α-solutions. Thus, for solid solutions with 0.12 and 0.22 at % Pb, the surface concentration of Pb is more than 100 times higher than its bulk content.

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Sn-Pb固体合金中成分的表面偏析

利用俄歇电子能谱研究了锡铅固体合金中各组分的表面偏析。测量了固体合金光谱中锡、铅俄歇峰的振幅。根据得到的实验数据，计算了不同体积浓度和温度下铅的表面含量，从而可以研究给定参数变化引起的铅偏析。锡在β-固体溶液中具有明显的表面活性，而铅在α-固体溶液中有明显的偏析。因此，对于0.12和0.22的固溶体，在% Pb时，Pb的表面浓度比其体积含量高100倍以上。

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

Russian Journal of Physical Chemistry A 化学-物理化学

CiteScore

1.20

自引率

14.30%

发文量

376

审稿时长

5.1 months

期刊介绍： Russian Journal of Physical Chemistry A. Focus on Chemistry (Zhurnal Fizicheskoi Khimii), founded in 1930, offers a comprehensive review of theoretical and experimental research from the Russian Academy of Sciences, leading research and academic centers from Russia and from all over the world. Articles are devoted to chemical thermodynamics and thermochemistry, biophysical chemistry, photochemistry and magnetochemistry, materials structure, quantum chemistry, physical chemistry of nanomaterials and solutions, surface phenomena and adsorption, and methods and techniques of physicochemical studies.