Microscopic Modeling of Tribological Phenomena

Abstract

Computer-based large-scale molecule dynamics simulations are developed, implemented and used to investigate the energetics and dynamical mechanisms in materials under stress and interfacial processes occuring between material tips and substrate surfaces. Studies of the consequences of intermetallic interactions between a nickle tip and a golf surface reveal microscopic information about processes of adhesion, contact formation, nanoindentation, connective neck formation, plastic deformation and fracture. The theoretical predictions correlate well with Atomic force microscopy experiments. Novel tribological phenomena coupled to enhanced surface superionic conductivity in (Cadmium Fluoride) are investigated. Keywords: Tribological processes, Nanomechanics, Molecular dynamics simulations of tip-substrate interactions, Atomic force microscopy, Mechanics, Surface chemistry, Materials.

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Document Details

Document Type
Technical Report
Publication Date
Feb 28, 1990
Accession Number
ADA222049

Entities

People

  • M. W. Ribarsky
  • Uzi Landman

Organizations

  • Georgia Tech Research Corporation

Tags

Communities of Interest

  • Cyber
  • Energy and Power Technologies
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Adhesion
  • Air Force
  • Computational Fluid Dynamics
  • Computational Science
  • Computer Simulations
  • Crystal Lattices
  • Crystal Structure
  • Dynamics
  • Elastic Properties
  • Equations Of Motion
  • Friction
  • Materials
  • Materials Science
  • Mechanical Properties
  • Mechanics
  • Microscopy
  • Molecular Dynamics

Readers

  • Materials Science and Engineering.
  • Nanoscale Plasmonic Nanotechnology
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).