Preparation, characterization, and tribological properties of silica-nanoparticle-reinforced B-N-co-doped reduced graphene oxide as a multifunctional additive for enhanced lubrication
Microwave-synthesized SiO 2 -reinforced B-N-co-doped reduced graphene oxide (SiO 2 -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...
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Published in | Friction Vol. 9; no. 2; pp. 239 - 249 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
Beijing
Tsinghua University Press
01.04.2021
Springer Nature B.V College of Materials Science and Engineering,Nanjing Institute of Technology,Nanjing 211167,China School of Materials Science and Engineering,Shanghai University,Shanghai 200000,China%College of Materials Science and Engineering,Nanjing Institute of Technology,Nanjing 211167,China Jiangsu Key Laboratory of Advanced Structural Materials and Application Technology,Nanjing 211167,China%College of Materials Science and Engineering,Nanjing Institute of Technology,Nanjing 211167,China Jiangsu Key Laboratory of Advanced Structural Materials and Application Technology,Nanjing 211167,China SpringerOpen |
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Summary: | Microwave-synthesized SiO
2
-reinforced B-N-co-doped reduced graphene oxide (SiO
2
-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 SiO
2
-B-N-GO prepared as anti-wear additives for enhanced lubrication were studied using a four-ball tester. The experiment results indicated that SiO
2
-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. |
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ISSN: | 2223-7690 2223-7704 |
DOI: | 10.1007/s40544-019-0331-1 |