Study on the Synthesis and Tribological Property of Fe3O4 Based Magnetic Fluids

被引：45

作者：

Huang, Wei ^{[1
]}

Wang, Xiaolei ^{[1
]}

Ma, Guoliang ^{[1
]}

Shen, Cong ^{[1
]}

机构：

[1] Nanjing Univ Aeronaut & Astronaut, Coll Mech & Elect Engn, Nanjing 210016, Jiangsu, Peoples R China

来源：

TRIBOLOGY LETTERS | 2009年 / 33卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Magnetic fluid; Fe3O4; nanoparticles; Tribological properties; Wear reduction; FRICTION;

D O I：

10.1007/s11249-008-9407-1

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

In this paper, Fe3O4 based magnetic fluids with different particle concentrations were prepared by the co-precipitation technique. The size of the Fe3O4 nanoparticles is about 13 nm and their shape is spherical. The tribological performances of the fluids with different concentration Fe3O4 nanoparticles were evaluated in a MMW-1A four-ball machine. The results show that the tribological performance of magnetic fluids with proper Fe3O4 nanoparticles can be improved significantly. The maximum nonseized load (P (B)) has been increased by 38.4% compared with carrier liquid. The wear scar diameter has been reduced from 0.68 mm to 0.53 mm and the relative percentage in friction coefficient has decreased to 31.3%. The optimal concentration of the Fe3O4 nanoparticles in the carrier liquid is about 4 wt.%.

引用

页码：187 / 192

页数：6

共 16 条

[1] ON THE SIMILARITY OF FRICTION AND WEAR PROCESSES AT DIFFERENT SCALE LEVELS [J].