Melt-driven erosion in microparticle impact
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s41467-018-07509-y.pdf
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Author(s)
Hassani Gangaraj, Seyyed Mostafa
Veysset, David Georges
Nelson, Keith Adam
Schuh, Christopher A
Date Issued
November 2018
Journal
Nature Communications
Publisher
Nature Publishing Group
Citation
Hassani-Gangaraj, Mostafa, David Veysset, Keith A. Nelson and Christopher A. Svhuh. "Melt-driven erosion in microparticle impact." Nature Communications (2018) 9:5077.
Version
Final published version
Abstract
Impact-induced erosion is the ablation of matter caused by being physically struck by another object. While this phenomenon is known, it is empirically challenging to study mechanistically because of the short timescales and small length scales involved. Here, we resolve supersonic impact erosion in situ with micrometer- and nanosecond-level spatiotemporal resolution. We show, in real time, how metallic microparticles (~10-μm) cross from the regimes of rebound and bonding to the more extreme regime that involves erosion. We find that erosion in normal impact of ductile metallic materials is melt-driven, and establish a mechanistic framework to predict the erosion velocity.
MIT Department
Massachusetts Institute of Technology. Institute for Soldier Nanotechnologies
Massachusetts Institute of Technology. Department of Chemistry
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Terms of Use
Creative Commons Attribution 4.0 International license
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DOI of Published Version
https://doi.org/10.1038/s41467-018-07509-y
