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    Item type:Publication,
    Effect of barium substitution on phase transitions of lead barium zirconate ceramics prepared by solid state reaction method
    (2007-12-01)
    Rujijanagul, Gobwute
    ;
    Vittayakorn, Naratip
    ;
    Bongkarn, Theerachai
    The effect of Ba<sup>2+</sup> substitution on the phase transitions of (Pb<inf>1-x</inf>Ba<inf>x</inf>)ZrO<inf>3</inf> (PBZ) ceramics (0.0≤x≤0.30) has been investigated as a function of x. Phase formation and phase transition of PBZ were investigated by x-ray diffraction (XRD) and thermal analysis, respectively. It was found that the structure of sintered pellets is orthorhombic for 0.0≤x≤0.10 and rhombohedral for 0.20≤x≤0.30, whereas orthorhombic and rhombohedral phases coexist at x = 0.15. The proportion of ferroelectric and paraelectric phase in the samples gradually decreased with increasing Ba<sup>2+</sup> content.