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Author: search.filters.author.Vittayakorn, W. C.Subject: search.filters.subject.Antiferroelectric materials

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    Synthesis, crystal structures, phase transition characterization and thermal properties of the (1-x)PbZrO3-xPb(Co1/3Nb 2/3)O3 solid solution system
    (2008-12-01)
    Banlue, W.
    ;
    Muanghlua, R.
    ;
    Vittayakorn, W. C.
    ;
    Vittayakom, N.
    The phase transition behavior of the (1-x) PbZrO<inf>3</inf>-xPb(Co <inf>1/3</inf>Nb<inf>2/3</inf>)O<inf>3</inf> (PZCN) solid solution system (0 ≤ x ≤ 0.30) has been investigated by X-ray diffraction and DSC. In the solid solution, for x ≤ 0.20, the transition shows a first-order phase transition behavior and its antiferroelectric (AFE) crystal structure is orthorhombic. The transition temperature gradually decreases with increased Co<sup>2+</sup>/Nb<sup>5+</sup> concentration. On the composition range 0.20 ≤x≤ 0.30, a typical relaxor-like behavior is displayed. The low temperature crystal structure is pseudo-cubic in this composition range. With these data, the ferroelectric phase diagram between PZ and PCoN has been established. © 2008 Trans Tech Publications, Switzerland.