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  1. No Access

    Article

    Effect of tetragonality ratio on photo-induced domain switching in poled (Pb1-xLax)TiO3 ferroelectric ceramics

    The effect of the tetragonality (c/a) ratio on photo-induced domain switching in (Pb1−xLax)TiO3 ferroelectric ceramics preliminarily poled at 1.5kVmm−1 was investigated by measuring photovoltaic current and acous...

    S. K. Choi, S. R. Kim, D. G. Choi in Journal of Materials Science: Materials in Electronics (2000)

  2. No Access

    Article

    Effect of the thickness of plasma-sprayed coating on bond strength and thermal fatigue characteristics

    NiCrAlY bond coat and ZrO2–8 wt% Y2O3 top coat with various thicknesses were deposited on Hastelloy X by plasma spraying. Residual stress was calculated by the finite element method (FEM) to explain the variat...

    H. M. Choi, B. S. Kang, W. K. Choi, D. G. Choi, S. K. Choi… in Journal of Materials Science (1998)

  3. No Access

    Article

    Dynamic behaviour of domains during poling by acoustic emission measurements in La-modified PbTiO3 ferroelectric ceramics

    In order to study the dynamic behaviour of domains during poling, the acoustic emission (AE) characteristics of two La-modified PbTiO3 ferroelectric ceramics in which 90° and 180° domains were respectively dom...

    D. G CHOI, S. K CHOI in Journal of Materials Science (1997)