Tribological properties of two-dimensional nanochains in water controlled by a magnetic field with various alignment directions

被引：5

作者：

Ma, Zeyu ^{[1
]}

Lu, Shan ^{[1
]}

Wu, Yuhao ^{[1
]}

Huang, Xiaodong ^{[1
]}

Hao, Luxin ^{[1
]}

Qin, Liguo ^{[1
]}

Dong, Guangneng ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, Sch Mech Engn, Key Lab, Educ Minist Modern Design & Rotor Bearing Syst, Xian 710049, Peoples R China

来源：

TRIBOLOGY INTERNATIONAL | 2024年 / 192卷

基金：

中国国家自然科学基金;

关键词：

Nanochain; Tribological properties; Surface morphology; Wear mechanisms; LUBRICANT ADDITIVES; NANOMATERIALS; PERFORMANCE;

D O I：

10.1016/j.triboint.2024.109305

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Nanoparticles are extensively utilized as effective lubrication additives. In a novel approach, one-dimensional nanoparticles undergo self-assembly, transforming into two-dimensional nanochains for use as additives, thereby enabling varied lubrication effects. We involved synthesizing Fe3O4 nanoparticles via a solvothermal method, followed by their self-assembly into magnetic Fe3O4@SiO2 nanochains under a magnetic field. These NCs, measuring 57.8 mu m in length and 0.2 mu m in diameter, were dispersed in deionized water. This study explored the influence of various orientations on the tribological properties of the lubricant through the manipulation of nanochains' alignment using a magnetic field. The results indicate a 48.51% reduction in coefficient of friction and a 73.56% decrease in wear rate when the NCs were aligned perpendicular to the direction of friction.

引用

页数：6

共 27 条

[1] Improving the tribological characteristics of piston ring assembly in automotive engines using Al2O3 and TiO2 nanomaterials as nano-lubricant additives [J].