Effect of misfit angle on superlubricity of molybdenum disulfide: A computational chemistry study

Yusuke Morita, Tasuku Onodera, Takanori Kuriaki, Ai Suzuki, Riadh Sahnoun, Michihisa Koyama, Hideyuki Tsuboi, Nozomu Hatakeyama, Akira Endou, Hiromitsu Takaba, Carlos A. Del Carpio, Momoji Kubo, Akira Miyamoto

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The effect of the misfit angle formation on the frictional property of MoS2 film was studied. The accumulated frictional force increased as the misfit angle (θ) approaches θ = 0° or 60°, and decreased as it approached θ = 30°C. This result suggested that the misfit angle plays a critical role in the lubrication performance of the MoS2 film. The frictional force changed when the Coulombic energy was high, i.e., the upper sulfur layer approached to the lower layer. The frictional force was positive value when the direction of Coulombic force was opposite to the sliding direction. When the frictional force was negative, the Coulumbic force remained the same. These results indicated that the Coulombic energy between sulfur layer strongly affect the frictional force of MoS2 layer. This is an abstract of a paper presented at the World Tribology Congress (Kyoto, Japan 9/6-11/2009).

Original languageEnglish
Title of host publicationWorld Tribology Congress 2009 - Proceedings
Number of pages1
Publication statusPublished - Dec 1 2009
EventWorld Tribology Congress 2009 - Kyoto, Japan
Duration: Sep 6 2009Sep 11 2009

Publication series

NameWorld Tribology Congress 2009 - Proceedings

Other

OtherWorld Tribology Congress 2009
CountryJapan
CityKyoto
Period9/6/099/11/09

All Science Journal Classification (ASJC) codes

  • Process Chemistry and Technology
  • Mechanical Engineering

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    Morita, Y., Onodera, T., Kuriaki, T., Suzuki, A., Sahnoun, R., Koyama, M., Tsuboi, H., Hatakeyama, N., Endou, A., Takaba, H., Del Carpio, C. A., Kubo, M., & Miyamoto, A. (2009). Effect of misfit angle on superlubricity of molybdenum disulfide: A computational chemistry study. In World Tribology Congress 2009 - Proceedings (World Tribology Congress 2009 - Proceedings).