Tribological Improvement of Low-Viscosity Nanolubricants: MoO3, MoS2, WS2 and WC Nanoparticles as Additives

IF 4.7 3区材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC ACS Applied Electronic Materials Pub Date : 2024-03-10 DOI:10.3390/lubricants12030087

José M. Liñeira del Río, Carlos Fernandes, Jorge H. O. Seabra

引用次数: 0

Abstract

The aim of this research is studying the tribological performance of MoO3, MoS2, WS2 and WC nanoparticles as additives of PAO4. Pure sliding tribological tests were performed at 120 °C, finding outstanding friction and wear reductions in comparison with the PAO4, with maximum friction reductions of 64% for the 0.1 wt% MoS2 nanolubricant and greatest wear decreases for 0.1 wt% MoS2 nanolubricant: a width reduction of 62% and a worn area decrease of 97%. Raman mapping and a roughness evaluation of the worn pins confirmed the tribofilm formation and mending as tribological mechanisms. Rolling–sliding tests were conducted with best nanolubricants performance in pure sliding, observing excellent antifriction capabilities of MoS2 nanoparticles at low speeds, indicating that the use of nanoparticles is vital in boundary lubrication.

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低粘度纳米润滑剂的摩擦学改进：作为添加剂的 MoO3、MoS2、WS2 和 WC 纳米粒子

这项研究的目的是研究作为 PAO4 添加剂的 MoO3、MoS2、WS2 和 WC 纳米粒子的摩擦学性能。与 PAO4 相比，0.1 wt% 的 MoS2 纳米润滑剂的摩擦力降低了 64%，而 0.1 wt% 的 MoS2 纳米润滑剂的磨损降低幅度最大：宽度减少了 62%，磨损面积减少了 97%。拉曼图谱和磨损销钉的粗糙度评估证实了摩擦学机制中的三膜形成和修补。轧辊滑动测试显示纳米润滑剂在纯滑动中的性能最佳，观察到 MoS2 纳米粒子在低速时具有出色的抗摩擦能力，这表明纳米粒子的使用在边界润滑中至关重要。

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来源期刊

ACS Applied Electronic Materials Multiple-

CiteScore

7.20

自引率

4.30%

发文量

567

期刊介绍： ACS Applied Electronic Materials is an interdisciplinary journal publishing original research covering all aspects of electronic materials. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrate knowledge in the areas of materials science, engineering, optics, physics, and chemistry into important applications of electronic materials. Sample research topics that span the journal's scope are inorganic, organic, ionic and polymeric materials with properties that include conducting, semiconducting, superconducting, insulating, dielectric, magnetic, optoelectronic, piezoelectric, ferroelectric and thermoelectric. Indexed/Abstracted： Web of Science SCIE Scopus CAS INSPEC Portico

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