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Title: Thermal and mechanical properties of CeO 2

Abstract

In this study, the thermal and mechanical properties of cerium dioxide (CeO 2) were assessed using a range of experimental techniques. The oxygen potential of CeO 2 was measured by the thermogravimetric technique, and a numerical fit for the oxygen potential of CeO 2 is derived based on defect chemistry. Mechanical properties of CeO 2 were obtained using sound velocity measurement, resonant ultrasound spectroscopy and nanoindentation. The obtained mechanical properties of CeO 2 are then used to evaluate the Debye temperature and Grüneisen constant. The heat capacity and thermal conductivity of CeO 2 were also calculated using the Debye temperature and the Grüneisen constant. Lastly, the thermal conductivity was calculated based upon laser flash analysis measurements performed on pellets fabricated using a range of feedstock purities to resolve discrepancies in the existing literature.

Authors:
ORCiD logo [1];  [1];  [2];  [2]; ORCiD logo [3]; ORCiD logo [3]; ORCiD logo [3]
  1. Japan Atomic Energy Agency (JAEA), Ibaraki (Japan)
  2. Inspection Development Company, Ibaraki (Japan)
  3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Office of Nuclear Energy (NE); USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1469554
Alternate Identifier(s):
OSTI ID: 1472144
Report Number(s):
LA-UR-18-23161
Journal ID: ISSN 0002-7820
Grant/Contract Number:  
AC52-06NA25396; DE‐AC52‐06NA25396; 20170531ER
Resource Type:
Accepted Manuscript
Journal Name:
Journal of the American Ceramic Society
Additional Journal Information:
Journal Volume: 102; Journal Issue: 4; Journal ID: ISSN 0002-7820
Publisher:
American Ceramic Society
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CeO2; Nuclear materials; Oxygen potential; Elastic properties; Heat capacity; Thermal conductivity

Citation Formats

Suzuki, Kiichi, Kato, Masato, Sunaoshi, Takeo, Uno, Hiroki, Carvajal-Nunez, Ursula, Nelson, Andrew T., and McClellan, Kenneth J. Thermal and mechanical properties of CeO2. United States: N. p., 2018. Web. doi:10.1111/jace.16055.
Suzuki, Kiichi, Kato, Masato, Sunaoshi, Takeo, Uno, Hiroki, Carvajal-Nunez, Ursula, Nelson, Andrew T., & McClellan, Kenneth J. Thermal and mechanical properties of CeO2. United States. doi:10.1111/jace.16055.
Suzuki, Kiichi, Kato, Masato, Sunaoshi, Takeo, Uno, Hiroki, Carvajal-Nunez, Ursula, Nelson, Andrew T., and McClellan, Kenneth J. Thu . "Thermal and mechanical properties of CeO2". United States. doi:10.1111/jace.16055. https://www.osti.gov/servlets/purl/1469554.
@article{osti_1469554,
title = {Thermal and mechanical properties of CeO2},
author = {Suzuki, Kiichi and Kato, Masato and Sunaoshi, Takeo and Uno, Hiroki and Carvajal-Nunez, Ursula and Nelson, Andrew T. and McClellan, Kenneth J.},
abstractNote = {In this study, the thermal and mechanical properties of cerium dioxide (CeO2) were assessed using a range of experimental techniques. The oxygen potential of CeO2 was measured by the thermogravimetric technique, and a numerical fit for the oxygen potential of CeO2 is derived based on defect chemistry. Mechanical properties of CeO2 were obtained using sound velocity measurement, resonant ultrasound spectroscopy and nanoindentation. The obtained mechanical properties of CeO2 are then used to evaluate the Debye temperature and Grüneisen constant. The heat capacity and thermal conductivity of CeO2 were also calculated using the Debye temperature and the Grüneisen constant. Lastly, the thermal conductivity was calculated based upon laser flash analysis measurements performed on pellets fabricated using a range of feedstock purities to resolve discrepancies in the existing literature.},
doi = {10.1111/jace.16055},
journal = {Journal of the American Ceramic Society},
number = 4,
volume = 102,
place = {United States},
year = {2018},
month = {9}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 4 works
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Figures / Tables:

Table 1 Table 1: Summary of the geometrical and elastic properties for CeO2 samples as determined through RUS in comparison with the nanoindentation and literature values. Italicized data was calculated using the literature values from the respective references.

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