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Title: Unravelling the low thermal expansion coefficient of cation-substituted YBaCo 4O 7+δ

With an aim to understand the origin of the low thermal expansion coefficients (TECs), cation substituted YBaCo 4O 7-type oxides have been investigated by in-situ neutron diffraction, bond valence sum (BVS), thermogravimetric analysis, and dilatometry. The compositions YBaCo 4O 7+δ, Y 0.9ln 0.1BaCo 3ZnO 7+δ, and Y 0.9ln 0.1BaCo 3Zn 0.6Fe 0.4O 7+δ) were synthesized by solid-state reaction at 1200 °C. Here, Rietveld refinement of the joint synchrotron X-ray and neutron diffraction data shows that the Zn and Fe dopants have different preferences to substitute the Co ions in the 6c and 2a sites.
Authors:
 [1] ;  [2] ;  [1] ;  [1]
  1. Univ. of Texas, Austin, TX (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Grant/Contract Number:
AC05-00OR22725
Type:
Accepted Manuscript
Journal Name:
Journal of Power Sources
Additional Journal Information:
Journal Volume: 307; Journal Issue: C; Journal ID: ISSN 0378-7753
Publisher:
Elsevier
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Spallation Neutron Source (SNS)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; cation-substituted YBaCo4O7; neutron diffraction; thermal expansion coefficient
OSTI Identifier:
1261519
Alternate Identifier(s):
OSTI ID: 1341175

Manthiram, Arumugam, Huq, Ashfia, Kan, Wang Hay, and Lai, Ke -Yu. Unravelling the low thermal expansion coefficient of cation-substituted YBaCo4O7+δ. United States: N. p., Web. doi:10.1016/j.jpowsour.2016.01.017.
Manthiram, Arumugam, Huq, Ashfia, Kan, Wang Hay, & Lai, Ke -Yu. Unravelling the low thermal expansion coefficient of cation-substituted YBaCo4O7+δ. United States. doi:10.1016/j.jpowsour.2016.01.017.
Manthiram, Arumugam, Huq, Ashfia, Kan, Wang Hay, and Lai, Ke -Yu. 2016. "Unravelling the low thermal expansion coefficient of cation-substituted YBaCo4O7+δ". United States. doi:10.1016/j.jpowsour.2016.01.017. https://www.osti.gov/servlets/purl/1261519.
@article{osti_1261519,
title = {Unravelling the low thermal expansion coefficient of cation-substituted YBaCo4O7+δ},
author = {Manthiram, Arumugam and Huq, Ashfia and Kan, Wang Hay and Lai, Ke -Yu},
abstractNote = {With an aim to understand the origin of the low thermal expansion coefficients (TECs), cation substituted YBaCo4O7-type oxides have been investigated by in-situ neutron diffraction, bond valence sum (BVS), thermogravimetric analysis, and dilatometry. The compositions YBaCo4O7+δ, Y0.9ln0.1BaCo3ZnO7+δ, and Y0.9ln0.1BaCo3Zn0.6Fe0.4O7+δ) were synthesized by solid-state reaction at 1200 °C. Here, Rietveld refinement of the joint synchrotron X-ray and neutron diffraction data shows that the Zn and Fe dopants have different preferences to substitute the Co ions in the 6c and 2a sites.},
doi = {10.1016/j.jpowsour.2016.01.017},
journal = {Journal of Power Sources},
number = C,
volume = 307,
place = {United States},
year = {2016},
month = {1}
}