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Title: Thermal and mechanical properties of CeO2

Journal Article · · Journal of the American Ceramic Society
DOI:https://doi.org/10.1111/jace.16055· OSTI ID:1469554

Abstract 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. Finally, 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.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE Office of Nuclear Energy (NE); USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC52-06NA25396; DE‐AC52‐06NA25396
OSTI ID:
1469554
Alternate ID(s):
OSTI ID: 1472144
Report Number(s):
LA-UR-18-23161
Journal Information:
Journal of the American Ceramic Society, Vol. 102, Issue 4; ISSN 0002-7820
Publisher:
American Ceramic SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 33 works
Citation information provided by
Web of Science

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Cited By (2)

A comprehensive assessment of the low-temperature thermal properties and thermodynamic functions of CeO 2 journal July 2019
Impact of irradiation induced dislocation loops on thermal conductivity in ceramics journal June 2019

Figures / Tables (15)


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