Current perspective towards a general framework to describe and harness friction at the nanoscale

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F24%3A00376112" target="_blank" >RIV/68407700:21230/24:00376112 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1016/j.progsurf.2024.100753" target="_blank" >https://doi.org/10.1016/j.progsurf.2024.100753</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.progsurf.2024.100753" target="_blank" >10.1016/j.progsurf.2024.100753</a>

Result language

angličtina

Original language name

Current perspective towards a general framework to describe and harness friction at the nanoscale

Original language description

Macroscopic friction is the result of the interplay of several processes occurring at different scales; an atom-scale description of the tribological interactions is then paramount for the explanation of the elementary phenomena at the basis of such processes, and finds immediate application in technological fields involving nanostructured devices. At the moment, there is no theory which tells us what is the friction coefficient given the atomic description of two surfaces in contact: it is measured experimentally or computationally case by case at specific environmental parameters and chemical composition of the moving surfaces. A general theory describing nanoscale friction is then desirable to reduce human effort, search time and material costs necessary to design new tribological materials with target response. We here provide a selective overview of theoretical and computational models which, from our perspective, may pave the avenue towards a unified theoretical framework of nanofriction. In this respect, we believe that the key aspect is to identify a novel mathematical formulation of friction based on its energetic aspects, i.e. energy dissipation, rather than its dynamical effects, i.e. hindering the relative motion of interacting surfaces. Ultimately, such avenue might lead to a way to predict the value of the friction coefficient of two surfaces in contact from the sole knowledge of the atom types and their arrangement, without the need to measure it in operative conditions: one of the biggest challenges in the field of nanotribology.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Progress in Surface Science

ISSN

0079-6816

e-ISSN

1878-4240

Volume of the periodical

99

Issue of the periodical within the volume

3

Country of publishing house

GB - UNITED KINGDOM

Number of pages

23

Pages from-to

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UT code for WoS article

001316803900001

EID of the result in the Scopus database

2-s2.0-85198364804