Abstract
Lead zirconate titanate (PZT) ( Zr/Ti = 65/35 ) ceramics were doped with various atomic percentages of samarium (Sm) and their piezoelectric and structural properties were studied. There is a significant improvement in the piezoelectric figure of merit ( d h g h ) of PZT when SM 3+ is introduced into the A sites. PZT containing 4 at.% Sm shows a figure of merit of about 1400. The structural studies performed on the samples indicate that this composition shows a coexistence of rhombohedral and tetragonal phases.
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