Abstract
The structural description of any particular member of the CeO2Y2O3 solid solution series reduces to the determination of compositional and displacement eigenvectors associated with two sets of modulation wave-vectors. The primary modulations are associated with oxygen (vacancy) ordering and the second-harmonic modulations with metal atom ordering —both with concomitant structural relaxation. With increasing yttria content, the two-phase region at about 60 mol.% YO1.5 is ascribed to the sudden onset of compositional and/or displacive modulation associated with the second-harmonic modulations.
Original language | English |
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Pages (from-to) | 17-27 |
Number of pages | 11 |
Journal | Journal of the Less-Common Metals |
Volume | 156 |
Issue number | 1-2 |
DOIs | |
Publication status | Published - 1989 Dec 1 |
Externally published | Yes |