Friction, lubrication, wear and adhesion are phenomena familiar
from everyday experience. As the size of materials involved
in engineering processes approach that of molecular scale (e.g.,
recent advances in STM and AFM for surface engineering), an
atomistic understanding of the mechanism involved in
friction and wear in becoming critical. Subjects of current interests
include: 1) what is friction from atomistic point of view; 2)
how do it depends on load; 3) how does it depends
on the host materials structure (phonons, elasticity etc); 4)
how does surface coating help?
My interest is to approach these problems using atomistic molecular
dynamics. A critical point is to design an empirical potential. This
will be modeled using ab initio molecular dynamics.
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