Fast coalescence of metallic glass nanoparticles

Journal: Nature Communications

Published: 2019-11-20

DOI: 10.1038/s41467-019-13054-z

Affiliations: 6

Authors: 7

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Research Highlight

Glass-like nanoparticles merge faster than conventional ones

© KATERYNA KON/SCIENCE PHOTO LIBRARY/Getty

© KATERYNA KON/SCIENCE PHOTO LIBRARY/Getty

Metallic glass nanoparticles— nanoparticles consisting of metal atoms with in a disordered, glass-like arrangement — coalesce more rapidly than conventional metal nanoparticles, which have regular, crystalline structures.

Metallic glass nanoparticles are potentially useful for many applications, including catalysis and biomedical materials. Like all nanoparticles, metallic glass nanoparticles coalesce with each other over time, which considerably alters their properties. But not much is known about their coalescence behaviour.

Now, researchers from the Advanced Institute for Materials Research at Tohoku University have used transmission electron microscopy to examine the coalescence of metallic glass nanoparticles. This analysis revealed that metallic glass nanoparticles coalesce faster than their conventional counterparts.

Computer simulations revealed that these different coalescence behaviours spring from the different mobilities of atoms on the nanoparticles’ surfaces, which in turn arises from the different nanoparticle morphologies.

Supported content

  1. Nature Communications 10, 5249 (2019). doi: 10.1038/s41467-019-13054-z
Institutions Share
WPI Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, Japan 0.45
State Key Laboratory of Metal Matrix Composites, SJTU, China 0.15
School of Materials Science and Engineering (SMSE), SJTU, China 0.15
Department of Materials Science and Engineering, JHU, United States of America (USA) 0.08
Hopkins Extreme Materials Institute (HEMI), JHU, United States of America (USA) 0.08
AIST-TohokuU Mathematics for Advanced Materials-Open Innovation Labratory (MathAM-OIL), Japan 0.07

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