In-situ measurements of surface tension-driven shape recovery in a metallic glass
Author(s)Packard, Corinne E.; Schroers, Jan; Schuh, Christopher A.
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A new technique, involving nanoindentation and in situ scanning probe microscopy at high temperature under an inert atmosphere, is used to study deformation of a Pt-based metallic glass. As temperature is increased into the supercooled liquid regime, impressions made by nanoindentation flatten due to surface tension-driven viscous flow. In situ measurements of shape recovery at various temperatures and times permit an estimation of the apparent activation energy for Newtonian-viscous flow.
DepartmentMassachusetts Institute of Technology. Department of Materials Science and Engineering
Packard, Corinne E., Jan Schroers, and Christopher A. Schuh. “In situ measurements of surface tension-driven shape recovery in a metallic glass.” Scripta Materialia 60.12 (2009): 1145-1148.
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