微重力环境及地基的高温熔体润湿特性

Wettability of high-temperature melts under microgravity and ground gravity conditions

经典材料表面与界面的一些实验现象被重力效应覆盖,影响人们对材料本质物理特性的深入了解.因此,微重力对熔体的润湿行为和固/液界面反应的作用机理研究具有重要的意义.本文综合前人对高温熔体特别是高温锡基合金的润湿行为及与基板间的界面反应特性的研究,通过与微重力条件下相关研究及实验结果对比,总结了卫星微重力环境及地基环境下的高温熔体润湿特性,为以后的空间实验及分析提供理论参考.

The physical characteristics of the material could not be accurately observed due to the effect of gravity which hides some experimental phenomena of the material surface and interface. So, it is greatly significant to study the influence mechanism of microgravity on the melt wetting behavior and solid/liquid interface reaction. In this paper, the wetting behaviour of high-temperature melts, especially of Sn-based alloys, and the reaction properties on the melt/substrate interface were summarized. Comparing with related research and experimental results under normal gravity and microgravity conditions, the high-temperature melt wetting characteristics in both satellite microgravity environment and ground environment are summarized. This paper provides a theoretical reference for future space microgravity experiments and analysis.