Yin Liang, Murray Bruce T, Su Shun, Sun Ying, Efraim Yael, Taitelbaum Haim, Singler Timothy J
Department of Mechanical Engineering, State University of New York, Binghamton, NY 13902-6000, USA.
J Phys Condens Matter. 2009 Nov 18;21(46):464130. doi: 10.1088/0953-8984/21/46/464130. Epub 2009 Oct 29.
Wetting and spreading in high temperature reactive metal-metal systems is of significant importance in many joining processes. An overview of reactive wetting is presented outlining the principal differences between inert and reactive wetting. New experimental evidence is presented that identifies an early time regime in reactive wetting in which spreading occurs without macroscopic morphological change of the solid-liquid interface. This regime precedes the heavily studied reactive wetting regime. Additional new experimental evidence is presented of kinetic roughening in a high temperature reactive system. Quantitative characterization of this roughening reveals similarities with room temperature systems. These new data provide evidence that supports the existence of several sequential time regimes in the reactive wetting process in which different physicochemical phenomena are dominant.
在许多连接工艺中，高温活性金属-金属体系中的润湿与铺展具有重要意义。本文对活性润湿进行了综述，概述了惰性润湿与活性润湿之间的主要差异。文中给出了新的实验证据，该证据确定了活性润湿中的一个早期阶段，在这个阶段铺展发生时固液界面没有宏观形态变化。这个阶段先于被大量研究的活性润湿阶段。文中还给出了高温活性体系中动力学粗糙化的其他新实验证据。对这种粗糙化的定量表征揭示了其与室温体系的相似性。这些新数据为活性润湿过程中存在几个相继的时间阶段提供了证据支持，在这些阶段中不同的物理化学现象占主导地位。
