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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
 [1];  [1];  [2];  [2];  [3];  [3];  [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)
+ Show Author Affiliations

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.

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
OSTI ID:
1469554
Alternate ID(s):
OSTI ID: 1472144
Report Number(s):
LA-UR--18-23161
Journal Information:
Journal of the American Ceramic Society, Journal Name: Journal of the American Ceramic Society Journal Issue: 4 Vol. 102; ISSN 0002-7820
Publisher:
American Ceramic SocietyCopyright Statement
Country of Publication:
United States
Language:
English

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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)

Table 1(p. 47)table Table 1
Table 2(p. 48)table Table 2
Table 3(p. 49)table Table 3
Table 4(p. 50)table Table 4
Table 5(p. 50)table Table 5
Table 6(p. 51)table Table 6
Fig. 1(p. 53)figure Fig. 1
Fig. 2(p. 54)figure Fig. 2
Fig. 3(p. 55)figure Fig. 3
Fig. 4(p. 56)figure Fig. 4
Fig. 5(p. 57)figure Fig. 5
Fig. 6(p. 58)figure Fig. 6
Fig. 7(p. 59)figure Fig. 7
Fig. 8(p. 60)figure Fig. 8
Fig. 9(p. 61)figure Fig. 9

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Related Subjects

36 MATERIALS SCIENCE
CeO2
Elastic properties
Heat capacity
Nuclear materials
Oxygen potential
Thermal conductivity