Thermodynamics of grain boundary triple junctions

晶界三联结的热力学

• 批准号: 33708596
• 负责人: Professor Dr. Günter Gottstein
• 金额: --
• 依托单位: Institut für Metallkunde und Metallphysik (IMM)
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2007
• 资助国家: 德国
• 起止时间: 2006-12-31 至 2010-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/33708596?language=en
• 关键词: Thermodynamics; grain; boundary; triple; junctions

It is proposed to measure the energy of a grain boundary triple junction line. This can be achieved by a measurement of the force equilibrium at a triple junction as established by the curvature of the adjourning grain boundary grooves at the root of the triple junction. A corresponding theoretical basis has been developed. The respective experiments can be conducted with an atomic force microscope, and first experiments were successful. Measurements will be performed on crystallographically defined triple junctions in specially grown tricrystals. First, pure metals will be investigated.

建议测量晶界三重接界线的能量。这可以通过测量三重接点处的力平衡来实现，该力平衡是由三重接点根部处的相邻晶界凹槽的曲率建立的。并建立了相应的理论基础。各自的实验可以用原子力显微镜进行，并且第一次实验取得了成功。测量将在特殊生长的三晶体中的晶体学定义的三重结上进行。首先，将研究纯金属。