crystals Article Design and Evaluation the Anti-Wear Property of Inorganic Fullerene Tungsten Disulfide as Additive in PAO6 Oil Wenting Chen 1, Kunyapat Thummavichai 2, Xiaorong Chen 1, Guangsheng Liu 1 , Xuefeng Lv 1, Linyi Zhang 1, Ding Chen 1, Santosh Kr. Tiwari 1 , Nannan Wang 1,* and Yanqiu Zhu 1,2,* 1 Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, Ministry of Education, School of Resources, Environment and Materials, Guangxi Institute Fullerene Technology (GIFT), Guangxi University, Nanning 530004, China;
[email protected] (W.C.);
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[email protected] (G.L.);
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[email protected] (Y.Z.) Abstract: Inorganic fullerene-like tungsten disulfide particles have been proved to have good anti- friction and anti-wear properties as lubricating materials. As far as we know, however, when it is used as a lubricant additive, its behavior and action mechanism in the friction process are rarely studied. Herein, IF–WS2 particles were synthesized by a Chemical Vapor Deposition (CVD) method. The effect of IF–WS2 particle concentrations in the PAO6 oil on the tribological behaviors ◦ was investigated with a four-ball wear machine at both 75 and 100 C. Additionally, the analyzed morphology and composition of nanomaterials and worn surfaces were analyzed by Scanning Citation: Chen, W.; Thummavichai, electron microscopy (SEM), Transmission Electron Microscopy (TEM) and X-ray photoelectron K.; Chen, X.; Liu, G.; Lv, X.; Zhang, L.; spectroscopy (XPS).