skip to main content

DOE PAGESDOE PAGES

Title: Atomic disorder in Gd 2Zr 2O 7 pyrochlore

Gd 2Zr 2O 7 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 Gd 2Zr 2O 7 is not very sensitive to the degree of atomic disorder in the pyrochlore structure.
Authors:
 [1] ;  [2] ;  [3]
  1. Yanshan Univ., Hebei (China); Univ. of Michigan, Ann Arbor, MI (United States)
  2. Univ. of Tennessee, Knoxville, TN (United States)
  3. Stanford Univ., Stanford, CA (United States)
Publication Date:
Grant/Contract Number:
NA0001977
Type:
Accepted Manuscript
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 106; Journal Issue: 19; Journal ID: ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)
Research Org:
Univ. of Michigan, Ann Arbor, MI (United States)
Sponsoring Org:
USDOE National Nuclear Security Administration (NNSA)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; 36 MATERIALS SCIENCE; X-ray diffraction; high pressure; diamond anvil cells; crystal defects; crystal structure
OSTI Identifier:
1289953

Zhang, F. X., Lang, M., and Ewing, R. C.. Atomic disorder in Gd2Zr2O7 pyrochlore. United States: N. p., Web. doi:10.1063/1.4921268.
Zhang, F. X., Lang, M., & Ewing, R. C.. Atomic disorder in Gd2Zr2O7 pyrochlore. United States. doi:10.1063/1.4921268.
Zhang, F. X., Lang, M., and Ewing, R. C.. 2015. "Atomic disorder in Gd2Zr2O7 pyrochlore". United States. doi:10.1063/1.4921268. https://www.osti.gov/servlets/purl/1289953.
@article{osti_1289953,
title = {Atomic disorder in Gd2Zr2O7 pyrochlore},
author = {Zhang, F. X. and Lang, M. and Ewing, R. C.},
abstractNote = {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.},
doi = {10.1063/1.4921268},
journal = {Applied Physics Letters},
number = 19,
volume = 106,
place = {United States},
year = {2015},
month = {5}
}