Synthesis and Tribological Performance of Different Particle-Sized Nickel-Ion-Exchanged α-Zirconium Phosphates
- 93 Downloads
Nickel-ion-exchanged α-zirconium phosphate (Ni-α-ZrP) was synthesized by a mild hydrothermal synthesis method. Different raw material ratios (NaF/H3PO4/Ni(CH3COO)2·4H2O) influence the particle size of the Ni-α-ZrP samples. The grain size could be controlled and distributed from 20 to 600 nm. Ni-α-ZrP was evaluated as an additive in lithium grease in a four-ball test. A 3.0 wt.% addition of Ni-α-ZrP to lithium grease yielded maximum non-seizure load values of 1235 N, and the wear scar diameter on the lower balls is 0.42 mm at 294 N. Compared with smaller particles, the addition of Ni-α-ZrP with a larger particle size to grease yields a better load-carrying capacity.
Keywordsadditive manufacturing hydrothermal synthesis lithium grease nickel-ion-exchanged α-zirconium phosphate particle size tribological properties
This work was financially supported by the Key Program of National Natural Science Foundation of China (Grant No. 21436008), the General Program of National Natural Science Foundation of China (Grant No. 51372162), Young Scientists Fund of the National Natural Science Foundation of China (Grant No. 21506145) and the Natural Science Foundation for Young Scientists of Shanxi Province, China (Grant No. 2015021032).
- 2.A. Clearfield and K. Demadis, Metal Phosphonate Chemistry: From Synthesis to Applications, Royal Society of Chemistry, London, 2012Google Scholar
- 9.S. Allulli, C. Ferragina, A.L. Ginestra, M.A. Massucci, N. Tomassini, and A.A.G. Tomlinson, Characterisation and Electronic Properties of Some Inorganic Ion Exchangers of the Zirconium Phosphate Type Containig Transition-Metal Ions, J. Chem. Soc., Dalton Trans., 1976, 8, p 2115–2120CrossRefGoogle Scholar
- 12.L. Szirtes, L. Riess, J. Megyeri, and E. Kuzmann, Comparative Study of Layered Tetravalent Metal Phosphates Containing Various First-Row Divalent Metals. Synthesis, Crystalline Structure, Cent. Eur. J. Chem., 2007, 5, p 516–535Google Scholar
- 13.S. Ahrland, J. Albertsson, Å. Oskarsson, and A. Niklasson, Inorganic Ion Exchangers—VII: The Sorption of First-Row Transition Metal Ions on a Zirconium Phosphate Gel of Low Crystallinity, and a Study of the Reproducibility of the Gel, J. Inorg. Nucl. Chem., 1970, 32, p 2069–2078CrossRefGoogle Scholar
- 20.W.J. Bartz, Some Investigations on the Influence of Particle Size on the Lubricating Effectiveness of Molybdenum Disulfide, Tribol. Trans., 1972, 15, p 207–215Google Scholar
- 22.S.Z. Wen and P. Huang, Principle of Tribology, 2nd ed., Tsinghua University Press, Beijing, 2002Google Scholar