High-resolution nanostructural investigation of Zn4Sb 3 alloys

Baptiste Gault*, Emmanuelle A. Marquis, David W. Saxey, Gareth M. Hughes, Dominique Mangelinck, Eric S. Toberer, G. Jeff Snyder

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

32 Scopus citations

Abstract

Zinc antimonides exhibit high thermoelectric figures of merit and bear great potential for power generation. To advance the understanding of the structure-property relationship in these alloys, the microstructure of a nanocrystalline Zn4Sb3 alloy, containing 57.29 at.% Zn, was investigated by scanning electron microscopy and atom probe tomography. Chemical inhomogeneities were observed at grain boundaries. Within the grains the distribution of Zn shows large fluctuations inducing a complex microstructure made of Zn-rich and Sb-rich regions at a nanometer scale.

Original languageEnglish (US)
Pages (from-to)784-787
Number of pages4
JournalScripta Materialia
Volume63
Issue number7
DOIs
StatePublished - Oct 2010

Keywords

  • Atom probe tomography
  • Scanning electron microscopy
  • Thermoelectric material
  • Zinc antimonide

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys

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