Microsystem Technologies

, Volume 11, Issue 8, pp 881–886

The dynamic behavior of ultrathin lubricant films

  • Yiao-Tee Hsia
  • Qian Guo
  • Satoru Izumisawa
  • Myung S. Jhon
Technical paper

DOI: 10.1007/s00542-005-0566-9

Cite this article as:
Hsia, Y., Guo, Q., Izumisawa, S. et al. Microsyst Technol (2005) 11: 881. doi:10.1007/s00542-005-0566-9

Abstract

Molecular dynamics simulations with the Langevin equation using a coarse-grained, bead-spring model were performed to investigate the dynamic properties of nanoscale lubricant films. The simulated spreading profiles of lubricant nanofilms are in qualitative agreement with previous experimental results. The Einstein’s relationship and Green–Kubo formula provide alternative perspectives for describing the diffusive phenomena of lubricant nanofilms. The effects of molecular weights and their distribution, temperature, and film thickness were examined.

Keywords

Bead-spring modelMolecular dynamicsSpreadingSelf-diffusion coefficientPolydispersityPerfluoropolyether

Copyright information

© Springer-Verlag 2005

Authors and Affiliations

  • Yiao-Tee Hsia
    • 1
  • Qian Guo
    • 2
  • Satoru Izumisawa
    • 2
  • Myung S. Jhon
    • 2
  1. 1.Seagate Research CenterSeagate TechnologyPittsburghUSA
  2. 2.Department of Chemical Engineering and Data Storage Systems CenterCarnegie Mellon UniversityPittsburghUSA