[18a-M_123-1~13] 12.2 Characterization and Materials Physics

11:30 AM - 11:45 AM JST(2:30 AM - 2:45 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[18a-M_123-10] Relationship between the molecular behavior of lubricant and additives at sliding interfaces and their impact of friction

〇(M1)Masaya Higuchi¹, Ryo Nakano¹, Takayuki Miyamae¹ (1.Chiba Univ.)

Keywords:

Tribology,lubricant,Interfacial Chemistry

Liquid lubricants used to suppress friction and wear in mechanical sliding components show changes in the friction coefficient depending on the molecular structure of additives; however, elucidating the adsorption/orientation states at sliding interfaces and the friction-reduction mechanism remains a key challenge in tribology. In this study, we performed in situ observation and quantitative analysis of interfacial molecular behavior under sliding conditions using sum-frequency generation (SFG) vibrational spectroscopy, and discussed the relationship between molecular orientation and friction-reduction effects.