Preparation and Tribological Properties of Surface-modified Borate Magnesium Nanoparticles

doi:10.3724/SP.J.1077.2010.01330

Journal of Inorganic Materials ›› 2010, Vol. 25 ›› Issue (12): 1330-1334.DOI: 10.3724/SP.J.1077.2010.01330

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Preparation and Tribological Properties of Surface-modified Borate Magnesium Nanoparticles

HAO Li-Feng^1,2, LI Jiu-Sheng¹, XU Xiao-Hong¹, REN Tian-Hui²

(1. PetroChina Lanzhou Lubricating Oil R&D Institute, Lanzhou 730060, China; 2. School of Chemistry and Chemical Engineering, Key Laboratory for Thin Film and Microfabrication Technology of Ministry of Education, Shanghai Jiao Tong University, Shanghai 200240, China)

Received:2010-03-29 Revised:2010-07-01 Published:2010-12-20 Online:2010-11-24
Supported by:
973 Program(2007CB607606)

Abstract

Abstract: To develop a potential substitute for sulfurized olefins, surface-modified borate magnesium nanoparticles (titled as T-MgBN) were synthesized. The composition and microstructures of the as-obtained samples were characterized by inductively coupled plasma atomic emission spectroscopy (ICP-AES), X-ray power diffraction (XRD) and transmission electron microscope (TEM). The results indicate that T-MgBN with the size of around 50 nm is amorphous, and the appearance is irregular sheet. The tribological properties of T-MgBN in base oil evaluated using four-ball tribometer show that T-MgBN has better tribological capacity in base oil than that of T321. SEM and XPS analysis of the worn surface prove that there exists a wear resistance film which contains depositions and tribochemical reaction products (B₂O₃, FeB, Fe₂O₃ and BN) on the worn surfaces.

Key words: borate magnesium, blending oil, sulfurized olefin, tribological property

CLC Number:

TB321

HAO Li-Feng, LI Jiu-Sheng, XU Xiao-Hong, REN Tian-Hui. Preparation and Tribological Properties of Surface-modified Borate Magnesium Nanoparticles[J]. Journal of Inorganic Materials, 2010, 25(12): 1330-1334.

References

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