Lin Qiaoli, Xie Kaibin, Sui Ran, Mu Dekui, Cao Rui, Chang Jinghuan, Qiu Feng
State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metal, Lanzhou University of Technology, Lanzhou 730050, PR China.
State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metal, Lanzhou University of Technology, Lanzhou 730050, PR China.
Adv Colloid Interface Sci. 2022 Jul;305:102698. doi: 10.1016/j.cis.2022.102698. Epub 2022 May 17.
The kinetic factors of the liquid-solid interface formation process are extremely useful in the design of composite preparation methods and the manufacture of comprehensive performance-controlled metal- or ceramic-based composites. Here, we review the available spreading dynamic models, focusing on wetting at high temperatures. There is yet to be developed a general spreading dynamic model with complete physical meaning that can accurately describe complicated surface-interface kinetic processes at high temperatures. In this work, we highlight common analysis errors in the description of the spreading dynamics for metal-ceramic and metal-metal systems. By unifying the expressions of the spreading dynamic models as the function f(v, θ) and fitting the experimental data reported in the literature, we discovered that the molecular-kinetic model commonly used to describe adsorption-controlled spreading at room temperature and reaction-limited spreading model used at high temperature have a certain range of overlap. When the condition σ(cosθ-cosθ) < <2nkT is satisfied, these models are consistent in terms of mathematical functional expressions. As a result, distinguishing between them when the spreading behavior includes both adsorption and reaction is challenging.
液 - 固界面形成过程的动力学因素在复合体制备方法设计以及综合性能可控的金属基或陶瓷基复合材料制造中极为有用。在此，我们回顾现有的铺展动力学模型，重点关注高温下的润湿性。目前尚未开发出一个具有完整物理意义、能准确描述高温下复杂表面 - 界面动力学过程的通用铺展动力学模型。在这项工作中，我们突出了金属 - 陶瓷和金属 - 金属系统铺展动力学描述中常见的分析错误。通过将铺展动力学模型的表达式统一为函数f(v, θ) 并拟合文献中报道的实验数据，我们发现常用于描述室温下吸附控制铺展的分子动力学模型与高温下反应受限铺展模型存在一定范围的重叠。当满足条件σ(cosθ - cosθ) << 2nkT 时，这些模型在数学函数表达式方面是一致的。因此，当铺展行为同时包含吸附和反应时，区分它们具有挑战性。
