  Surface temperature is among crucial factors, which control wear during
sliding dry contact. Using computer modeling, we study the possibility to
achieve close to zero rate of surface wear during sliding friction of the
special type of materials, which possess negative thermal expansion. The
numerical simulations reveal two wear regimes for negative thermal expansion
materials as dependent on the applied normal stress level. When the applied
stress is lower than that of a critical level, a steady almost zero wear rate
and nanorough surface are achieved during friction. Otherwise, wear rate is of
the same order of magnitude as for positive thermal expansion materials. The
critical stress value is analyzed as depending on the material's mechanical,
thermophysical, and surface roughness characteristics.
