期刊
WEAR
卷 268, 期 1-2, 页码 277-286出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.wear.2009.08.019
关键词
AFM; Sliding friction; Sliding wear; Micro-scale abrasion
资金
- Marie Curie Industry Host Fellowship Scheme [HPMI-CT-2001-00153]
- UK Nuclear Decommissioning Authority
In this work, Lateral Force Microscopy (LFM) has been used to measure the frictional characteristics of the contact of 20 mu m glass beads and UO3 particles attached to silicon tapping mode cantilevers. The substrates used were glass, mica and UO2 single crystals cleaved to form flat surfaces. Flatness of the substrate is necessary to remove the influence of the topography of the substrate on the friction signal. Reverse imaging was used to ensure that the particles attached to the cantilevers were free from contamination and to detect any alteration to the particles surfaces such as wear. Atomic Force Microscopy (AFM) tapping mode images of the substrates acquired before and after the friction experiment were used to identify any wear of the substrates, or the presence of wear debris from the particles. The adhesion between particle and substrate was also measured during the experiment. Two kinds of wear mechanisms were identified: adhesive wear and abrasive wear. In the case of adhesive wear the particle was flattened, the adhesion increased during the experimental run and wear debris from the particle was left on the substrate after the experiment. In the case of abrasive wear, the particle excavated a groove in the substrate. The dependence of the friction and adhesion forces with the load force specific to the type of wear is discussed. (C) 2009 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据