Reactive wetting of solid-liquid interfaces in the Au-Sn alloy system

Au-Sn合金体系固液界面的反应润湿

• 批准号: 229606216
• 负责人: Privatdozent Dr. Jürgen Brillo
• 金额: --
• 依托单位: Institut für Materialphysik im Weltraum
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2012
• 资助国家: 德国
• 起止时间: 2011-12-31 至 2016-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/229606216?language=en
• 关键词: Reactive; wetting; solid; liquid; interfaces

In numerous technically relevant processes as, for instance, soldering, welding, or sintering, the course of of wetting processes at solid-liquid interfaces of metallic alloys determines the mechanical properties of the bond. As there is no sufficient tool for the prediction of wetting processes in technical applications, we aim to obtain an understanding of interface formation in this project. The envisaged extension of the phase field method will allow a 3D simulation of the dynamic evolution of capillary forces, convective and diffusive processes, and interfaces on a mesoscopic scale. By suitable formulation of temperature and concentration dependent material properties, reactive wetting is to be analyzed on the example of Au-Sn. Thermophysical properties, needed for the simulation, will be determined in parallel experiments. In addition, the comparison of calculated contact angles, concentration profiles, and droplet shapes with those experimentally obtained will provide a reference for the validation and optimization of the phase field method.

在许多技术上相关的工艺中，例如钎焊、焊接或烧结，金属合金的固液界面处的润湿过程的过程决定了结合的机械性能。由于在技术应用中没有足够的工具来预测润湿过程，我们的目标是在这个项目中获得对界面形成的理解。相场法的设想扩展将允许在介观尺度上对毛细力、对流和扩散过程以及界面的动态演化进行3D模拟。通过适当的配方的温度和浓度依赖的材料特性，反应润湿是要分析的Au-Sn的例子。模拟所需的热物理性质将在平行实验中确定。此外，计算的接触角，浓度分布，和液滴形状与实验获得的比较将提供相场法的验证和优化的参考。

项目成果

Surface tension of liquid Al–Au binary alloys

• DOI: 10.1007/s10853-016-9794-x
• 发表时间: 2016-02
• 期刊: Journal of Materials Science
• 影响因子: 4.5
• 作者: J. Brillo;G. Kolland

A phase-field study on the formation of the intermetallic Al2Au phase in the Al–Au system

• DOI: 10.1016/j.actamat.2015.05.002
• 发表时间: 2015-08
• 期刊: Acta Materialia
• 影响因子: 9.4
• 作者: Fei Wang;B. Nestler

Structural and dynamical properties of liquid Al-Au alloys

• DOI: 10.1103/physrevb.92.184201
• 发表时间: 2015-11
• 期刊: Physical Review B
• 影响因子: 3.7
• 作者: H. Peng;T. Voigtmann;G. Kolland;H. Kobatake;J. Brillo

Phase-field modeling of reactive wetting and growth of the intermetallic Al2Au phase in the Al-Au system

• DOI: 10.1016/j.actamat.2017.12.015
• 发表时间: 2018-03
• 期刊: Acta Materialia
• 影响因子: 9.4
• 作者: Fei Wang;A. Reiter;M. Kellner;J. Brillo;M. Selzer;B. Nestler