Effect of electric field on the lubricating performance of Ga-based liquid metal | |
Department | 固体润滑国家重点实验室 |
Guo J(郭杰)1,2; Cheng J(程军)1,2; Tan H(谈辉)1,2; Zhu SY(朱圣宇)1,2; Qiao ZH(乔竹辉)1,2; Yang J(杨军)1,2; Liu WM(刘维民)1,2,3 | |
The second department | 高温摩擦学课题组 |
2019-04 | |
Source Publication | Advanced Materials Interfaces |
Volume | 6Issue:1900028Pages:1-11 |
Abstract | Ga-based liquid metal (GLM) can be used as a current-carrying lubricant, due to its combination of excellent electrical conductivity and good lubricity. However, the influence of electric field parameters on the lubrication mechanism of GLM is still unclear. This paper attempts to investigate the influence of current magnitude, voltage magnitude, current direction and load on the lubrication behaviors of GLM at atmosphere and room temperature (~ 26 °C). It is found that the interface action mechanism induced by electric field is mainly reflected in four aspects, namely Joule heating effect, electric field force, electrochemical effect and electromigration effect. These interfacial physical and chemical effects are governed by the current magnitude, voltage magnitude, current direction and load, bringing about the distinct frictional products and thereby influencing the lubrication behaviors. Briefly, FeGa3 can only be formed when the current reaches 6 A and the load above 40 N, and it has obvious friction-reducing property, but increases the wear due to its low content. When the frictional product is just the Ga-rich film, the increase of oxidation degree is detrimental to the wear resistance. |
Keyword | Ga-based liquid metal lubrication mechanism electric current current-carrying lubricant FeGa3 grain |
MOST Discipline Catalogue | 理学 |
DOI | 10.1002/admi.201900028 |
URL | 查看原文 |
If | 4.713 |
Language | 英语 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/25790 |
Collection | 固体润滑国家重点实验室(LSL) |
Corresponding Author | Cheng J(程军); Yang J(杨军) |
Affiliation | 1.State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, China 2.Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China 3.School of Materials Science and Engineering, Northwestern Polytechnical University, Xian, 710072, China |
Recommended Citation GB/T 7714 | Guo J,Cheng J,Tan H,et al. Effect of electric field on the lubricating performance of Ga-based liquid metal[J]. Advanced Materials Interfaces,2019,6(1900028):1-11. |
APA | Guo J.,Cheng J.,Tan H.,Zhu SY.,Qiao ZH.,...&Liu WM.(2019).Effect of electric field on the lubricating performance of Ga-based liquid metal.Advanced Materials Interfaces,6(1900028),1-11. |
MLA | Guo J,et al."Effect of electric field on the lubricating performance of Ga-based liquid metal".Advanced Materials Interfaces 6.1900028(2019):1-11. |
Files in This Item: | ||||||
File Name/Size | DocType | Version | Access | License | ||
admi.201900028.pdf(4523KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment