Melting Can Hinder Impact-Induced Adhesion
Name
PhysRevLett.119.175701.pdf
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1.68 MB
Format
Adobe PDF
Checksum (MD5)
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Author(s)
Hassani Gangaraj, Seyyed Mostafa
Veysset, David Georges
Nelson, Keith Adam
Schuh, Christopher A
Date Issued
October 2017
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Hassani-Gangaraj, Mostafa et al. “Melting Can Hinder Impact-Induced Adhesion.” Physical Review Letters 119, 17 (October 2017) © 2017 American Physical Society
Version
Final published version
Abstract
Melting has long been used to join metallic materials, from welding to selective laser melting in additive manufacturing. In the same school of thought, localized melting has been generally perceived as an advantage, if not the main mechanism, for the adhesion of metallic microparticles to substrates during a supersonic impact. Here, we conduct the first in situ supersonic impact observations of individual metallic microparticles aimed at the explicit study of melting effects. Counterintuitively, we find that under at least some conditions melting is disadvantageous and hinders impact-induced adhesion. In the parameter space explored, i.e., ∼10 μm particle size and ∼1 km/s particle velocity, we argue that the solidification time is much longer than the residence time of the particle on the substrate, so that resolidification cannot be a significant factor in adhesion.
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
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevLett.119.175701
