Factors governing wear of soda lime silicate glass: Insights from comparison between nano- and macro-scale wear

Hongtu He, Seung Ho Hahn, Jiaxin Yu, Linmao Qian, Seong H. Kim

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

Previous studies demonstrated the macroscale wear behavior of soda lime silicate (SLS) glass in humid air was governed by the mechanochemical reactivity of sliding interfaces, which is a function of relative humidity (RH). In this study, it was observed that no disenible nanowear of SLS glass surface in dry conditions because the contact is elastic. In humid conditions, nanowear occurred due to water-induced mechanochemical reactions and the RH dependence above 20% was relatively weak. Nanowear of SLS glass decreased at the sodium ions enriched region, which was revealed with ReaxFF-MD simulations. Further analyses revealed that the wear behavior of SLS glass surface depends on both the mechanochemical reactions occurring at the sliding interface and the transport of the mechanochemical reaction products.

Original languageEnglish (US)
Article number107566
JournalTribology International
Volume171
DOIs
StatePublished - Jul 2022

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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