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Atomic disorder in Gd<sub>2</sub>Zr<sub>2</sub>O<sub>7</sub> pyrochlore [electronic resource].

Published
Washington, D.C. : United States. National Nuclear Security Administration, 2015.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy
Physical Description
Article numbers 191,902 : digital, PDF file
Additional Creators
University of Michigan, United States. National Nuclear Security Administration, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
Gd2Zr2O7 pyrochlore with different degrees of cation disorder were synthesized by isothermal annealing at various temperatures (1100–1550 °C), and the related changes in the structure were investigated by ambient and high pressure x-ray diffraction (XRD) measurements. Unit cell parameters increase almost linearly with increasing treatment temperature. The degree of cation order in pyrochlore also increases with the increase of temperature, but saturates at ~60%. The compressibility of the pyrochlore structures decreases when the degree of cation order increases. Lastly, high pressure XRD measurements also indicate that the phase stability of Gd2Zr2O7 is not very sensitive to the degree of atomic disorder in the pyrochlore structure.
Report Numbers
E 1.99:1289953
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Note
Published through SciTech Connect.
05/13/2015.
Applied Physics Letters 106 19 ISSN 0003-6951; APPLAB AM
F. X. Zhang; M. Lang; R. C. Ewing.
Funding Information
NA0001977
View MARC record | catkey: 23497214