CaltechAUTHORS
Published March 2009 | Version public
Journal Article Metadata-only

In situ observation of eutectoid reaction forming a PbTe-Sb₂Te₃ thermoelectric nanocomposite by synchrotron X-ray diffraction

Creators

  • 1. ROR icon California Institute of Technology
  • 2. ROR icon California State Polytechnic University
  • 3. ROR icon Nagoya University

Abstract

In situ high-temperature powder X-ray diffraction experiments have been performed on performed on Pb10.5Sb6Te57.9 using using a synchrotron X-ray source to observe the eutectoid reaction from Pb2Sb6Te11 to PbTe and Sb2Te3. Molar fractions of the constituent phases and fraction transformed were obtained as functions of time. The experimental fraction transformed vs. time curve were well fitted by the Kolmogorov–Johnson–Mehl–Avrami equation with an Avrami index n = 1.4. The small n value suggests that the growth of the new phases PbTe and Sb2Te3 is one-dimensional.

Additional Information

© 2008 Elsevier. Received 19 September 2008; revised 21 October 2008; accepted 26 October 2008. Available online 5 November 2008.

Additional details

Identifiers

Eprint ID
13441
DOI
10.1016/j.scriptamat.2008.10.024
Resolver ID
CaltechAUTHORS:IKEsm09

Related works

Describes
10.1016/j.scriptamat.2008.10.024 (DOI)

Dates

Created
2009-04-22
Created from EPrint's datestamp field
Updated
2021-11-08
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