Electrokinetic Phenomena in Near Surface Layers of Metal Polymer Friction Elements

IF 0.5 4区工程技术 Q4 ENGINEERING, MECHANICAL Journal of Friction and Wear Pub Date : 2023-03-13 DOI:10.3103/S1068366622060058

A. Kh. Janahmadov

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Abstract—

This article discusses the near surface layers of polymer lining of a spot-type disk brake and proposes the algorithm of nonequilibrium thermodynamics, which contains thermal conductivity and electrokinetic phenomena in near surface layers of polymer lining. The possibility of application of nonequilibrium dynamics with linear regimes in tribocouplings of friction devices has been substantiated and the electrokinetic effect has been revealed. It has been demonstrated that due to the cross effect with temperature gradients there exist two equilibrium states for metal friction elements: steady state surface temperature and thermal stabilization state. For the polymer lining the equilibrium state is understood as burnout of binding components from its near surface layer with formation of fluid islands. The relations of parameters have been formed equaling the Onsager and Saxen relations, which allows one to determine the parameters by calculations. The electrokinetic effect can be used for removal of moisture from the friction surface of brakes, thus providing stability of the friction coefficient.

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金属聚合物摩擦元件近表层的电动力学现象

摘要:本文讨论了点式盘式制动器聚合物衬里近面层，提出了包含聚合物衬里近面层导热现象和电动力学现象的非平衡态热力学算法。证明了非平衡线性动力学在摩擦装置摩擦联轴器中应用的可能性，揭示了电动力学效应。结果表明，由于温度梯度的交叉效应，金属摩擦元件存在两种平衡状态:表面温度稳态和热稳定状态。对于聚合物衬里，平衡状态被理解为结合组分从其近表层燃尽并形成流体岛。建立了类似于Onsager和Saxen关系的参数关系，从而可以通过计算确定参数。电动效应可用于去除制动器摩擦表面的水分，从而提供摩擦系数的稳定性。

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来源期刊

Journal of Friction and Wear ENGINEERING, MECHANICAL-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

1.50

自引率

28.60%

发文量

审稿时长

6-12 weeks

期刊介绍： Journal of Friction and Wear is intended to bring together researchers and practitioners working in tribology. It provides novel information on science, practice, and technology of lubrication, wear prevention, and friction control. Papers cover tribological problems of physics, chemistry, materials science, and mechanical engineering, discussing issues from a fundamental or technological point of view.