Tribological Behaviour of Cuo@Rgo Nanoparticles Under Different Slide-To-Roll

IF 3.3 3区工程技术 Q2 ENGINEERING, CHEMICAL

Tribology Letters Pub Date : 2025-08-12 DOI:10.1007/s11249-025-02054-4

S. M. Alves, R. D. Cunha, A. Morina

引用次数: 0

Abstract

This paper aims to develop core–shell nanoparticles by combining CuO (core) and reduced graphene oxide (shell) as lubricant additives and understand their action under different slide-to-roll ratios. The SRRs evaluated were 50 and 200%, with nanoparticles concentrations of 0.05 and 0.1wt%. The worn tracks were characterized through WLI, SEM, TEM and Raman Spectroscopy. The results showed that the lubrication mechanism and tribofilm formation are strongly associated with the type of contact. At SRR 200%, nanolubricant reduced friction and wear; it was observed exfoliation of nanoparticles, the CuO acted as rolling, and the rGO sheet was deposited on a worn surface. On the other hand, for SRR 50% doesn´t decrease the friction coefficient; however, a thicker tribofilm was produced with nanoparticles.

Abstract Image

查看原文本刊更多论文

Cuo@Rgo纳米颗粒在不同滑动滚转下的摩擦学行为

以氧化铜（芯）和还原氧化石墨烯（壳）为润滑剂添加剂，制备核-壳纳米颗粒，并研究其在不同滑滚比下的作用。纳米颗粒浓度分别为0.05 wt%和0.1wt%， srr分别为50%和200%。通过WLI、SEM、TEM和拉曼光谱对磨损轨迹进行了表征。结果表明，摩擦膜的形成和润滑机理与接触类型密切相关。在SRR为200%时，纳米润滑剂减少了摩擦和磨损；观察到纳米颗粒脱落，CuO起滚动作用，氧化石墨烯薄片沉积在磨损表面。另一方面，50%的SRR不降低摩擦系数；然而，纳米颗粒产生了更厚的摩擦膜。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Tribology Letters 工程技术-工程：化工

CiteScore

5.30

自引率

9.40%

发文量

116

审稿时长

2.5 months

期刊介绍： Tribology Letters is devoted to the development of the science of tribology and its applications, particularly focusing on publishing high-quality papers at the forefront of tribological science and that address the fundamentals of friction, lubrication, wear, or adhesion. The journal facilitates communication and exchange of seminal ideas among thousands of practitioners who are engaged worldwide in the pursuit of tribology-based science and technology.