Internal distortion in ZrO2-CeO2 solid solutions: Neutron and high-resolution synchrotron x-ray diffraction study

Masatomo Yashima, Satoshi Sasaki, Yasuo Yamaguchi, Masato Kakihana, Masahiro Yoshimura, Takeharu Mori

Research output: Contribution to journalArticlepeer-review

91 Citations (Scopus)

Abstract

Neutron and high-resolution synchrotron x-ray diffraction measurements have indicated a tetragonal zirconia phase with both an axial ratio of unity and internal shear deformation: The oxygen displacements from ideal fluorite positions of 0.088 and 0.078 Å are observed for 65 and 70 mol% CeO2-ZrO2 samples, respectively, although both c/a values are 1.000±0.001. The c/a ratio decreases with increasing of CeO2 content and decreases discontinuously to unity around a 60 mol% CeO2 composition, while the oxygen displacement decreases continuously up to about 90 mol% CeO2.

Original languageEnglish
Pages (from-to)182-184
Number of pages3
JournalApplied Physics Letters
Volume72
Issue number2
DOIs
Publication statusPublished - 1998
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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