Lead free ferroelectric Ba(Zr0.2Ti0.8)O3–0.5(Ba0.7Ca0.3)TiO3 ceramics with 95.2% of theoretical density and finer grains were obtained from chemically synthesized powders by microwave sintering at 1300 °C for 20 min. Microwave sintered ceramics showed higher density, higher Curie temperature (Tc) of 115 °C, higher dielectric permittivity of 2960, and minimized dielectric loss of 0.02. Whereas, the conventional sintered ceramics showed Curie temperature (Tc) of 95 °C, dielectric permittivity of 1813, and dielectric loss of 0.035. The higher Curie temperature along with improved dielectric properties might encourage practical applications of this composition as dielectric capacitors.
Journal of Materials Science: Materials in Electronics – Springer Journals
Published: May 31, 2018
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