Experimental Wear Analysis of Nano-Sized Titania Particles as Additives in Automotive Lubricants

IF 1.5 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Micro & Nano Letters Pub Date : 2023-08-21 DOI:10.3390/micro3030050

Á. Szabó, Á. Tóth, Hebah Abdallah, H. Hargitai

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Abstract

This study focuses on the wear effects of nano-sized titania as a potential engine lubricant additive. Titanium dioxide nanoparticles have promising wear-reducing properties and significant tribological potential. In this article, titania nanoparticles were homogenized in Group III automotive oil at five different concentrations (0.1; 0.2 … 0.5 wt%). The nanodoped oil samples were tested on a linear oscillating tribometer with oil circulation. Based on the tribological results, titania nanoparticles increased friction by 20–32% but can reduce the wear area by up to 32%. According to the confocal microscopic examination, wear volume can be reduced by up to 57% with titania nanoparticles. Titania nanoparticles improved the repeatability of tribological measurements. A scanning electron microscopy examination of the wear track revealed that the characteristic wear of the tribological system was abrasive, but a significant amount of adhesive wear was also observed. Energy dispersive X-ray spectroscopy analysis found that the nanoparticles fill the deeper trenches of the wear. The worn surface uniformly contains TiO2 particles and the quantified normalized titanium concentration was between 0.56 and 0.62%.

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纳米二氧化钛颗粒作为汽车润滑油添加剂的实验磨损分析

本文研究了纳米二氧化钛作为一种潜在的发动机润滑油添加剂的磨损效应。二氧化钛纳米颗粒具有良好的减磨性能和显著的摩擦学潜力。在本文中，二氧化钛纳米颗粒以五种不同浓度(0.1;0.2…0.5 wt%)。在带油循环的线性振荡摩擦计上对纳米油样品进行了测试。根据摩擦学结果，二氧化钛纳米颗粒可以增加20-32%的摩擦，但可以减少高达32%的磨损面积。共聚焦显微镜检查表明，纳米二氧化钛可使磨损体积减少57%。二氧化钛纳米颗粒提高了摩擦学测量的可重复性。对磨损轨迹的扫描电镜检查显示，摩擦学系统的特征磨损是磨蚀性的，但也观察到大量的粘着磨损。能量色散x射线光谱分析发现，纳米颗粒填充了磨损的更深的沟槽。磨损表面均匀含有TiO2颗粒，量化归一化钛浓度在0.56 ~ 0.62%之间。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Micro & Nano Letters 工程技术-材料科学：综合

CiteScore

3.30

自引率

0.00%

发文量

审稿时长

2.8 months

期刊介绍： Micro & Nano Letters offers express online publication of short research papers containing the latest advances in miniature and ultraminiature structures and systems. With an average of six weeks to decision, and publication online in advance of each issue, Micro & Nano Letters offers a rapid route for the international dissemination of high quality research findings from both the micro and nano communities. Scope Micro & Nano Letters offers express online publication of short research papers containing the latest advances in micro and nano-scale science, engineering and technology, with at least one dimension ranging from micrometers to nanometers. Micro & Nano Letters offers readers high-quality original research from both the micro and nano communities, and the materials and devices communities. Bridging this gap between materials science and micro and nano-scale devices, Micro & Nano Letters addresses issues in the disciplines of engineering, physical, chemical, and biological science. It places particular emphasis on cross-disciplinary activities and applications. Typical topics include: Micro and nanostructures for the device communities MEMS and NEMS Modelling, simulation and realisation of micro and nanoscale structures, devices and systems, with comparisons to experimental data Synthesis and processing Micro and nano-photonics Molecular machines, circuits and self-assembly Organic and inorganic micro and nanostructures Micro and nano-fluidics