CuO, ZrO2 and ZnO nanoparticles as antiwear additive in oil lubricants

By A. H. Battez, R. González, J. Viesca, J. E. Fernández, Carlos Segovia Fernández, A. Machado, R. Chou, J. Riba. 2008

729 citations recorded by the source corpus.

Abstract This work presents and discusses the antiwear behaviour of nanoparticle suspensions in a polyalphaolefin (PAO 6). CuO, ZnO and ZrO 2 nanoparticles were separately dispersed at 0.5%, 1.0% and 2.0%wt. in PAO 6 using an ultrasonic probe for 2 min. AW properties were obtained using a TE53SLIM tribometer with a block-on-ring configuration. Tests were made under a load of 165 N, sliding speed of 2 m/s and a total distance of 3.066 m. Wear surfaces were analysed by scanning electron microscopy (SEM) and energy dispersive spectrometry (EDS) after wear tests. The study led to the following conclusions: all nanoparticle suspensions exhibited reductions in friction and wear compared to the base oil; the suspensions with 0.5% of ZnO and ZrO 2 had the best general tribological behaviour, exhibiting high friction and wear reduction values even at low deposition levels on the wear surface; CuO suspensions showed the highest friction coefficient and lowest wear per nanoparticle content of 2%; and the antiwear mechanism of nanoparticulate additive was produced by tribo-sintering.

Subfields: Mechanical Engineering, Mechanics of Materials

View Paper: https://www.semanticscholar.org/paper/3c0a8c43a5140197012677c86037e07587d3091f

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In Mechanical Engineering

1. Han Huang
2. H. Spikes
3. Zhengyi Jiang
4. Jingwei Zhao
5. J. Zhang

In Mechanics of Materials

1. H. Spikes
2. Zhengyi Jiang

Citations in the corpus

• Improving the AW/EP ability of chemically modified palm oil by adding CuO and MoS2 nanoparticles (2015, neutral): “In various research experiments, oxides and chalcogenides showed good compatibility with selected base oils and superior wear prevention characteristics; these materials include copper(II) oxide (CuO) [10, 14-19], zinc oxide (ZnO) [15, 17, 20], zirconium dioxide (ZrO2) [15, 17, 21], titanium dioxide”
• Friction Modifier Additives (2015, background): “Very recently it was shown that CuO and ZrO2 nanoparticles dispersed in a formulated engine oil were effective in reducing both friction and wear [216].”
• Friction and wear characteristics of TiO2 nano-additive water-based lubricant on ferritic stainless steel (2018, background): “At other times, the formation of the film is produced by tribo-sintering of the NPs [50, 51], and the compacted and smooth tribofilm (so called “glaze”) is conductive to the decrease of friction and wear.”