@article{Wang2025, 
author = {Yang Wang and Yexin Li and Xiao Huang and Jingxiang Xu and Yusuke Ootani and Nobuki Ozawa and Koshi Adachi and Linmao Qian and Wen Wang and Momoji Kubo},
title = {A generalized friction law depicting the thermal effects at chemical bonding interface},
year = {2025},
journal = {Friction},
volume = {13},
number = {6},
pages = {9441031},
keywords = {friction model, interfacial bond, molecular dynamics, atomic force microscopy (AFM)},
url = {https://www.sciopen.com/article/10.26599/FRICT.2025.9441031},
doi = {10.26599/FRICT.2025.9441031},
abstract = {Non-empirical law depicting how atomic-scale friction behaves is crucial for facilitating the practical design of tribosystems. However, progress in developing a practically usable friction law has stagnated because atomic-scale friction arises from the continuous formation and rupture of interfacial chemical bonds, and such interfacial chemical reactions are difficult to measure precisely. Here, we propose a usable friction law for atomic-scale contact by using large-scale atomistic simulations to correctly measure the interfacial chemical reactions of a realistic rough surface. This friction model is effective to predict how atomic-scale friction force varies with temperature, sliding velocity, and load. As a special example, our model predicts velocity-related mountain-like temperature dependence of friction, and this prediction result is then carefully validated by comparison with ultra-high-vacuum atomic force microscopy (AFM) experiments.}
}