Lubricating mechanism of cyano-based ionic liquids on nascent steel surface
作者： S. Kawada , S. Watanabe , C. Tadokoro , R. Tsuboi , S. Sasaki
DOI: 10.1016/J.TRIBOINT.2017.11.019
关键词: Physical chemistry 、 Ion 、 Friction coefficient 、 Low friction 、 Ionic liquid 、 Materials science 、 Adsorption 、 Outgassing 、 Thermal stability 、 Organic chemistry
摘要: Abstract This study investigates the lubricating mechanism of cyano-based ionic liquids on steel surfaces using Q-MS, ToF-SIMS, and TGA. [EMIM][DCN], [EMIM][TCC], [EMIM][TCB], [BMPL][DCN], [BMPL][TCC], [BMPL][TCB] were selected as lubricants. [EMIM][TCB] exhibited highest friction coefficient. The others very low coefficients less than 0.08. Q-MS analysis indicated that cation components detected in outgassing during sliding tests. However, anion not detected. ToF-SIMS results showed anions remained worn which would lead coefficients. To achieve coefficient, tribo-decomposition adsorption required. TGA thermal stability was an index for nascent surface.
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