期刊
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY
卷 236, 期 7, 页码 1296-1310出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/13506501211056413
关键词
Composites; dry sliding wear; lubrication; polymer tribology; friction and wear
A hierarchical braided polymer composite was designed with PTFE fibers, reinforcement fibers, and epoxy resin as a self-lubricant composite and bearing. The study revealed that carbon fibers led to greater wear weight loss and friction coefficient compared to glass and Kevlar fibers. Additionally, the wear stability of the composites decreased significantly with increased load, and the tribological features became inappropriate with the deployment of 3D braid structure.
In the present work, a hierarchical braided polymer composite consists of Polytetrafluoroethylene (PTFE) fibers, reinforcement fibers, and epoxy resin was designed as a self-lubricant composite and bearing. Different reinforcements such as glass, carbon, and Kevlar fibers were employed to investigate the effect of reinforcement on the wear characteristics of composites. Besides, the influence of 2D/3D braid fabric was examined on the wear behavior of samples. Also, 90 and 120 N loads were applied to assess the load impact. Results illustrated that compared to glass and Kevlar, carbon could lead to a greater wear weight loss and friction coefficient. However, PTFE tribofilm was observed according to scanning electron microscopy (SEM)/energy-dispersive X-ray spectroscopy (EDS) analysis. Moreover, with the increase of load, the wear stability of the composites faded significantly. Furthermore, the tribological features became inappropriate with the deployment of the 3D braid structure. Finally, the modeling of tribological parameters was carried out using response surface methodology-based D-optimal design. The adequacy of the models was checked by analysis of variance. Results implied that there is an excellent correlation between the model and the experiments.
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