Preparation, characterization, and tribological properties of silica-nanoparticle-reinforced B-N-co-doped reduced graphene oxide as a multifunctional additive for enhanced lubrication

被引：40

作者：

Xiong, Sang ^{[1
,2
,3
]}

Zhang, Baosen ^{[1
,2
]}

Luo, Shuai ^{[1
]}

Wu, Hao ^{[1
]}

Zhang, Zhen ^{[1
,2
]}

机构：

[1] Nanjing Inst Technol, Coll Mat Sci & Engn, Nanjing 211167, Peoples R China

[2] Jiangsu Key Lab Adv Struct Mat & Applicat Technol, Nanjing 211167, Peoples R China

[3] Shanghai Univ, Sch Mat Sci & Engn, Shanghai 200000, Peoples R China

来源：

FRICTION | 2021年 / 9卷 / 02期

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

SiO2-B-N-GO nanocomposites; material characterization; tribological properties; PERFORMANCE; BORON; FRICTION; GREEN; FILMS; OIL;

D O I：

10.1007/s40544-019-0331-1

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Microwave-synthesized SiO2-reinforced B-N-co-doped reduced graphene oxide (SiO2-B-N-GO) nanocomposites were characterized by X-ray photon spectroscopy (XPS), X-ray diffraction (XRD), infrared (IR) spectroscopy, and transmission electron microscopy/energy dispersive X-ray (TEM/EDX) analysis. The tribological properties of the SiO2-B-N-GO prepared as anti-wear additives for enhanced lubrication were studied using a four-ball tester. The experiment results indicated that SiO2-B-N-GO exhibits excellent load-carrying, anti-wear, and anti-friction properties in a base oil, especially at the optimal concentration of additives at 0.15 wt%. The wear scar diameter decreased from 0.70 to 0.37 mm and the coefficient of friction was reduced from 0.092 to 0.070, which reductions are attributed to the formation of B-N and graphene layer tribofilms of several tens of nanometers in thickness that prevented direct contact between metals.

引用

页码：239 / 249

页数：11

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