Thermal expansion behavior of Ce2Zr2O7 up to 898 K in conjunction with structural analyses by neutron diffraction

The thermal expansion of cubic pyrochlore Ce 2 Zr 2 O 7 has been measured from room temperature to 898 K on polycrystalline material in conjunction with structural analyses using neutron diffraction. This compound has a thermal expansion coefficient in line with the other comparable lanthanoide pyro...

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Bibliographic Details
Published inPhysics and chemistry of minerals Vol. 37; no. 8; pp. 555 - 559
Main Authors Raison, Philippe E., Pavel, Claudiu C., Jardin, Regis, Suard, Emmanuelle, Haire, Richard G., Popa, Karin
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer-Verlag 01.09.2010
Springer Nature B.V
Subjects
Crystallography and Scattering Methods
Earth and Environmental Science
Earth Sciences
Geochemistry
Mineral Resources
Mineralogy
Neutron diffraction
Neutrons
Original Paper
Thermal expansion
Zirconium
Zr
Thermal expansion
Ce
Pyrochlore structure
Neutron diffraction
O
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Summary:The thermal expansion of cubic pyrochlore Ce 2 Zr 2 O 7 has been measured from room temperature to 898 K on polycrystalline material in conjunction with structural analyses using neutron diffraction. This compound has a thermal expansion coefficient in line with the other comparable lanthanoide pyrochlore oxides. The coefficient can be expressed as α ( T ) = 8.418 × 10 −6  + 0.9861 × 10 −9  ×  T . The structural refinements performed for each measured temperature showed a comparable linear evolution of the Ce–O/Zr–O distances (within 0.57%).
ISSN:0342-1791
1432-2021
DOI:10.1007/s00269-010-0356-5