Wettability versus roughness of engineering surfaces
Wettability versus roughness of engineering surfaces
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DOI：
10.1016/j.wear.2010.03.029
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发表时间：
2011-06-03
期刊：
影响因子：
5
通讯作者：
Carval, Ph.
中科院分区：
文献类型：
--
作者：
Kubiak, K. J.;Wilson, M. C. T.;Carval, Ph.
实际工程表面的润湿发生在许多工业应用中（液体涂层、润滑、印刷、喷漆……）。在许多情况下，强制润湿和自然润湿都是有益的，可以提供润滑，从而减少摩擦和磨损。然而，表面的润湿性会受到表面粗糙度的强烈影响。这种影响对于静态和动态润湿来说非常重要[1]。在本文中，作者通过实验研究了粗糙度对接触角测量的影响，并提出了一个将 Wenzel 和 Cassie-Baxter 理论与简单的 20 粗糙度轮廓分析相结合的简单模型。该建模方法适用于真实的均匀各向异性表面，这些表面由铝合金、铁合金、铜、陶瓷、塑料（聚甲基丙烯酸甲酯：PMMA）和钛合金等多种工程材料制成。 (C) 2010 Elsevier B.V. 保留所有权利。
Wetting of real engineering surfaces occurs in many industrial applications (liquid coating, lubrication, printing, painting,...). Forced and natural wetting can be beneficial in many cases, providing lubrication and therefore reducing friction and wear. However the wettability of surfaces can be strongly affected by surface roughness. This influence can be very significant for static and dynamic wetting [1]. In this paper authors experimentally investigate the roughness influence on contact angle measurements and propose a simple model combining Wenzel and Cassie-Baxter theories with simple 20 roughness profile analysis. The modelling approach is applied to real homogeneous anisotropic surfaces, manufactured on a wide range of engineering materials including aluminium alloy, iron alloy, copper, ceramic, plastic (poly-methylmethacrylate: PMMA) and titanium alloy. (C) 2010 Elsevier B.V. All rights reserved.