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Thermal and mechanical properties of CeO 2
Author(s) -
Suzuki Kiichi,
Kato Masato,
Sunaoshi Takeo,
Uno Hiroki,
CarvajalNunez Ursula,
Nelson Andrew T.,
McClellan Kenneth J.
Publication year - 2019
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/jace.16055
Subject(s) - materials science , resonant ultrasound spectroscopy , thermal conductivity , debye model , atmospheric temperature range , thermogravimetric analysis , cerium , laser flash analysis , thermodynamics , thermal , analytical chemistry (journal) , nanoindentation , composite material , elastic modulus , chemistry , metallurgy , physics , organic chemistry , chromatography
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.