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Preparation, Characterization and Tribological Evaluation of Calcium Borate Nanoparticles as Lubricant Additives

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Abstract:

To develop a potential substitute for conventional lubricant additive, pure calcium borate nanoparticles (PCBN) and calcium borate nanoparticles modified with oleic acid (MCBN) were prepared. The microstructures of the as-obtained samples were characterized using X-ray power diffraction (XRD), transmission electron microscope (TEM) and infrared spectra (IR), and the dispersing stability of oil containing nanoparticles was also evaluated. Tribological properties of MCBN used as lubricating additive were evaluated using four-ball tribometer and compared with that of PCBN. The results indicate that MCBN show better antiwear and friction-reducing property than PCBN. The worn surface of the steel ball lubricated with MCBN was investigated by Polarized microscope (PM) and X-ray photoelectron spectroscopy (XPS), and the action mechanism of MCBN during friction process was preliminarily discussed.

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Periodical:

Advanced Materials Research (Volumes 148-149)

Pages:

1047-1056

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.148-149.1047

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Online since:

October 2010

Authors:

Jiu Sheng Li, Li Feng Hao, Xiao Hong Xu, Li Zhang, Tian Hui Ren

Keywords:

Calcium Borate, Nanoparticle, Oil-Solubility, Tribological Property

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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