Electron Backscatter Diffraction Measurement of Structural Reorientation after Nanoindentation of Nanoporous Gold

Nicolas J. Briot, T. John Balk

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

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 languageEnglish
Pages (from-to)487-492
Number of pages6
JournalMRS Advances
Volume3
Issue number8-9
DOIs
StatePublished - 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

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