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Evidence of induced structural and conduction anisotropy in scandia‐stabilized zirconia ceramics
Author(s) -
Barbashov Vladimir,
Nesova Elizaveta,
Pismenova Natalia,
Radionova Olga
Publication year - 2012
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.201127449
Subject(s) - materials science , anisotropy , ceramic , crystallite , cubic zirconia , condensed matter physics , thermal conduction , phase (matter) , atmospheric temperature range , phase transition , trigonal crystal system , electrical resistivity and conductivity , conductivity , crystal structure , crystallography , composite material , metallurgy , thermodynamics , chemistry , optics , electrical engineering , physics , organic chemistry , engineering
Evidence of current induced structural and conduction anisotropy was experimentally established in scandia‐stabilized zirconia ceramics. It was found that these effects are observed only when the material is in the rhombohedral phase. It was shown using conductivity measurements and X‐ray phase analysis that anisotropic behavior of polycrystalline ZrO 2 ‐Sc 2 O 3 ceramics is induced by a low‐amplitude alternating current in the temperature range corresponding to a rhombohedral‐to‐cubic phase transition.