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Title: In situ neutron scattering study of nanostructured PbTe-PbS bulk thermoelectric material

Abstract

Nanostructures play an important role in thermoelectric materials. Their thermal stability, such as phase change and evolution at elevated temperatures, is thus of great interest to the thermoelectric community. In this study, in situ neutron diffraction was used to examine the phase evolution of nanostructured bulk PbTe-PbS materials fabricated using hot pressing and pulsed electrical current sintering (PECS). The PbS second phase was observed in all samples in the as-pressed condition. The temperature dependent lattice parameter and phase composition data show an initial formation of PbS precipitates followed by a redissolution during heating. The redissolution process started around 570 600 K, and completed at approximately 780 K. During cooling, the PECS sample followed a reversible curve while the heating/cooling behavior of the hot pressed sample was irreversible.

Authors:
 [1];  [2];  [3];  [2]
  1. Temple University
  2. ORNL
  3. Michigan State University, East Lansing
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Spallation Neutron Source (SNS); Energy Frontier Research Centers (EFRC) (United States). Revolutionary Materials for Solid State Energy Conversion (RMSSEC)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1327617
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Conference
Resource Relation:
Conference: the 35th International Conference & the 1st Asian Conference on Thermoelectrics, Wuhan, China, 20160529, 20160529
Country of Publication:
United States
Language:
English
Subject:
neutron diffraction; high temperature; thermoelectrics

Citation Formats

Ren, Fei, Schmidt, Robert D, Case, Eldon D, and An, Ke. In situ neutron scattering study of nanostructured PbTe-PbS bulk thermoelectric material. United States: N. p., 2016. Web. doi:10.1007/s11664-016-4802-0.
Ren, Fei, Schmidt, Robert D, Case, Eldon D, & An, Ke. In situ neutron scattering study of nanostructured PbTe-PbS bulk thermoelectric material. United States. doi:10.1007/s11664-016-4802-0.
Ren, Fei, Schmidt, Robert D, Case, Eldon D, and An, Ke. Fri . "In situ neutron scattering study of nanostructured PbTe-PbS bulk thermoelectric material". United States. doi:10.1007/s11664-016-4802-0. https://www.osti.gov/servlets/purl/1327617.
@article{osti_1327617,
title = {In situ neutron scattering study of nanostructured PbTe-PbS bulk thermoelectric material},
author = {Ren, Fei and Schmidt, Robert D and Case, Eldon D and An, Ke},
abstractNote = {Nanostructures play an important role in thermoelectric materials. Their thermal stability, such as phase change and evolution at elevated temperatures, is thus of great interest to the thermoelectric community. In this study, in situ neutron diffraction was used to examine the phase evolution of nanostructured bulk PbTe-PbS materials fabricated using hot pressing and pulsed electrical current sintering (PECS). The PbS second phase was observed in all samples in the as-pressed condition. The temperature dependent lattice parameter and phase composition data show an initial formation of PbS precipitates followed by a redissolution during heating. The redissolution process started around 570 600 K, and completed at approximately 780 K. During cooling, the PECS sample followed a reversible curve while the heating/cooling behavior of the hot pressed sample was irreversible.},
doi = {10.1007/s11664-016-4802-0},
journal = {},
issn = {0361-5235},
number = ,
volume = ,
place = {United States},
year = {2016},
month = {1}
}

Conference:
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Works referenced in this record:

High-performance bulk thermoelectrics with all-scale hierarchical architectures
journal, September 2012

  • Biswas, Kanishka; He, Jiaqing; Blum, Ivan D.
  • Nature, Vol. 489, Issue 7416, p. 414-418
  • DOI: 10.1038/nature11439

Cubic AgPbmSbTe2+m: Bulk Thermoelectric Materials with High Figure of Merit
journal, February 2004


In-doped Pb0.5Sn0.5Te p-type samples prepared by powder metallurgical processing for thermoelectric applications
journal, June 2007

  • Gelbstein, Y.; Dashevsky, Z.; Dariel, M. P.
  • Physica B: Condensed Matter, Vol. 396, Issue 1-2, p. 16-21
  • DOI: 10.1016/j.physb.2007.02.067