Molecular dynamics simulation and experimental investigation of tribological behavior of nanodiamonds in aqueous suspensions

Rouhollah Mirzaamiri, Saleh Akbarzadeh, Saeed Ziaei-Rad, Dong Gap Shin, Dae Eun Kim

Research output: Contribution to journalArticlepeer-review

Abstract

The tribological performance of nanodiamonds (ND) in aqueous suspensions was investigated via experiments and molecular dynamics (MD) simulations. The results indicated that the introduction of ND significantly improved the naturally poor lubrication ability of water. The best performance was characterized by reductions of 70% and 88% in friction and wear, respectively. The enhancement of the tribological performance was mainly attributed to the ball-bearing effect of the ND. The rolling motion of the nanodiamond particles was verified by MD simulation. Moreover, results indicated that the lubrication quality of the ND was affected by the sonication process in the nano lubricant preparation.

Original languageEnglish
Article number106838
JournalTribology International
Volume156
DOIs
Publication statusPublished - 2021 Apr

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. 2020R1A2C2004714 ). The second and third authors are grateful to Iranian National Science Foundation (INSF) for the support of this work under project number 940004 .

Publisher Copyright:
© 2021 Elsevier Ltd

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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