Particle adhesion force distributions on rough surfaces
Particle adhesion force distributions on rough surfaces
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DOI：
10.1021/la049914f
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发表时间：
2004-06-22
期刊：
影响因子：
3.9
通讯作者：
Peukert, W
中科院分区：
文献类型：
--
作者：
Götzinger, M;Peukert, W
在气相中研究了粗糙度对粘附力分布的影响。在火焰过程中产生直径在5和20 μ m之间的球形金颗粒，并直接粘合到原子力显微镜（AFM）的杠杆上。通过浸涂工艺生产具有限定粗糙度的纳米结构化基底。通过AFM成像确定粘附伙伴的几何形状，并且用AFM测量粘附力。根据颗粒和基底的粗糙度，可以确定三种类型的分布函数;其中两种可以用简单的模型来解释。所获得的粘附力分布不仅与在商业上重要的粉末（例如，氧化铝、调色剂和金），但也与文献中报道的分布一致。
The effect of roughness on adhesion force distribution was studied in the gas phase. Spherical gold particles with diameters between 5 and 20 mum were generated in a flame process and glued onto atomic force microscope (AFM) cantilevers directly after. Nanostructured substrates with defined roughness were produced by a dip-coating process. The geometry of the adhering partners was determined by AFM imaging, and the adhesion force was measured with the AFM. Depending on the roughness of the particles and the substrates, three types of distribution functions can be identified; two of them can be explained with a simple model. The obtained adhesion force distributions not only agree with those experimentally recorded in previous studies of commercially important powders (e.g., alumina, toner, and gold on different substrates) but also agree with distributions reported in the literature.