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The defect structure of Y‐ and N‐doped zirconia
Author(s) -
Boysen Hans,
KaiserBischoff Ines,
Frey Friedrich,
Lerch Martin,
Hoffmann JensUwe,
Hohlwein Dietmar
Publication year - 2005
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s0021889804029504
Subject(s) - ion , crystallography , neutron diffraction , scattering , doping , materials science , bar (unit) , diffraction , cubic zirconia , neutron scattering , crystal structure , molecular physics , chemistry , optics , physics , ceramic , optoelectronics , organic chemistry , meteorology , composite material
The diffuse scattering of a single crystal of the quaternary system Zr–Y–O–N (Zr 0.96 Y 0.04 O 1.64 N 0.223 ) has been recorded by neutron diffraction in different layers of the [10] and [100] zones to study the short‐range order originating from anion vacancies. A new model is proposed with uncorrelated anion vacancies and radial shifts of the surrounding ions towards or away from the vacancies. The parameters of the model were refined by fitting to the diffuse scattering intensities. The shortest Zr–anion distance is reduced, indicating covalent contributions.