التفاصيل البيبلوغرافية
| العنوان: |
Comparison of the tribology performance of nano-diesel soot and graphite particles as lubricant additives. |
| المؤلفون: |
Zu-chuan Zhang, Zhen-bing Cai, Jin-fang Peng, Min-hao Zhu |
| المصدر: |
Journal of Physics D: Applied Physics; 2/3/2016, Vol. 49 Issue 4, p1-1, 1p |
| مصطلحات موضوعية: |
NANOPARTICLES, ADDITIVES, SOOT analysis, LUBRICATION & lubricants, RAMAN spectroscopy |
| مستخلص: |
The tribology behavior of exhaust diesel soot as a lubricant additive was investigated and then compared with that of a selection of commercial nano-graphite particles. Specifically, 0.01 wt% particles were dispersed in PAO4 oil with 1 wt% sorbitan monooleate (Span 80) as a dispersing agent, and wear tests based on the ball against plate mode were conducted at various temperatures. Different analytical techniques (e.g. transmission electron, scanning electron and infrared microscopy; energy dispersive x-ray and Raman spectroscopy; and charge measurement) were employed to characterize the chemistry and morphology of the additives and their tribology performance. The oil containing only 0.01 wt% diesel soot clearly improved wear resistance over 60 °C. In particular, at 100 °C the wear rate decreased by approximately 90% compared to the function of base oil. In the same test conditions, diesel soot exhibited better anti-wear performance than nano-graphite at high temperatures. The potential measure showed that the nano-graphite had positive charge and the diesel soot had negative charge. Electrochemical action may play an important role in the lubricant mechanisms of diesel soot and graphite as oil additives. [ABSTRACT FROM AUTHOR] |
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