Abstract
Characterizing individual ligaments' behavior during deformation of nanoporous (np) structures remains crucial in further understanding the mechanical response of such materials. In this paper, we report, for the first time, quantifiable results describing the reorientation of ligament structure in np gold (np-Au) subjected to nanoindentation, based on characterization by electron backscatter diffraction (EBSD) orientation mapping. The analysis was performed on a cross-sectioned face at the center of an indent, after specimen preparation utilizing focused ion beam (FIB) techniques. This work provides insights into how the np structure accommodates the material volume displaced during nanoindentation, as well as the strain propagation under the indent. This new knowledge will be fundamental to optimizing utilization of the nanoindentation technique for measurement of np materials and, in particular, np thin films.
Original language | English |
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Pages (from-to) | 487-492 |
Number of pages | 6 |
Journal | MRS Advances |
Volume | 3 |
Issue number | 8-9 |
DOIs | |
State | Published - 2018 |
Bibliographical note
Publisher Copyright:Copyright © 2018 Materials Research Society.
Keywords
- nano-indentation
- nanoscale
- scanning electron microscopy (SEM)
ASJC Scopus subject areas
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
- General Materials Science