Abstract
Ceramics in (1-x)PZT–xBWM system with formula (1-x)Pb(Zr0.50 Ti0.50)O3–xBa(W2/3 Mn1/3)O3, where x = 0.0025–0.01, were prepared by a normal solid-state method and sintered at 1150 °C. The crystal structure, microstructure and dielectric properties of the ceramics were investigated via X-ray diffraction, scanning electron microscopy and dielectric spectroscopy. X-ray diffraction results demonstrate that all the samples lie within the morphotropic phase boundary region. A microstructure with mean grains sizes of 1.71–2.11 μm were found and the apparent density of 7.59–7.75 g/cm3. The Curie temperature (T c) decreases with increasing BWM content. The room temperature dielectric constant shows a decreasing trend while loss improves with BWM doping.
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