English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

The thermodynamic model of ultrathin lubricant film melting, confined betweentwo atomically-flat solid surfaces, is built using the Landau phase transitionapproach. Non-equilibrium entropy is introduced describing the part of thermalmotion conditioned by non-equilibrium and non-homogeneous character of thethermal distribution. The equilibrium entropy changes during the time oftransition of non-equilibrium entropy to the equilibrium subsystem. To describethe condition of melting, the variable of the excess volume (disorderparameter) is introduced which arises due to chaotization of a solid structurein the course of melting. The thermodynamic and shear melting is describedconsistently. The stick-slip mode of melting, which is observed in experiments,are described. It is shown that with growth of shear velocity, the frequency ofstiction spikes in the irregular mode increases at first, then it decreases,and the sliding mode comes further characterized by the constant value offriction force. Comparison of the obtained results with experimental data iscarried out.

Multidimensional thermodynamic potential for descriptions of ultrathin lubricant film melting between two atomically smooth surfaces