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Vol. 27 No. 3 (2015): Vol 27 Issue 3

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Tribological Properties of Layered a-Zirconium Phosphate as Lithium Grease Additive

https://doi.org/10.14233/ajchem.2015.18474
Huijuan Ma
Research Institute of Special Chemicals, Taiyuan University of Technology, Taiyuan 030024, P.R. China
Xiaosheng Zhang
Research Institute of Special Chemicals, Taiyuan University of Technology, Taiyuan 030024, P.R. China
Hong Xu
Research Institute of Special Chemicals, Taiyuan University of Technology, Taiyuan 030024, P.R. China

Corresponding Author(s) : Hong Xu

xuhongwork@126.com

Asian Journal of Chemistry, Vol. 27 No. 3 (2015): Vol 27 Issue 3

Abstract

Layered a-zirconium phosphate [a-Zr(HPO4)2·H2O, hereafter referred to as a-ZrP] with high crystallinity, uniform diameter and regular morphological forms was synthesized in a mild NaF-ZrO-P2O5-H2O system under hydrothermal conditions. The four-ball test results indicated that the anti-wear, load-carrying and friction reduction capacity of lithium grease were significantly improved with the addition of a-zirconium phosphate. It was also observed that a-zirconium phosphate displayed a better lubricating property than MoS2. The SEM and EDS results indicated that a protective film that was composed of Zr, P, Fe, Cr, O and C formed on the rubbing surface.

Keywords

Layered a-zirconium phosphate Tribolgical properties Lithium grease Hydrothermal synthesis
Ma, H., Zhang, X., & Xu, H. (2015). Tribological Properties of Layered a-Zirconium Phosphate as Lithium Grease Additive. Asian Journal of Chemistry, 27(3), 1133–1137. https://doi.org/10.14233/ajchem.2015.18474
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