Microwave sintered lead free ferroelectric BZT-50BCT ceramics with higher Curie temperature and improved dielectric properties

Microwave sintered lead free ferroelectric BZT-50BCT ceramics with higher Curie temperature and... 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. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Materials Science: Materials in Electronics Springer Journals

Microwave sintered lead free ferroelectric BZT-50BCT ceramics with higher Curie temperature and improved dielectric properties

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Publisher
Springer Journals
Copyright
Copyright © 2018 by Springer Science+Business Media, LLC, part of Springer Nature
Subject
Materials Science; Optical and Electronic Materials; Characterization and Evaluation of Materials
ISSN
0957-4522
eISSN
1573-482X
D.O.I.
10.1007/s10854-018-9362-z
Publisher site
See Article on Publisher Site

Abstract

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

Journal of Materials Science: Materials in ElectronicsSpringer Journals

Published: May 31, 2018

References

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