Effect of Sintering Method on the Microstructure and Dielectric Properties of Lead-Free BCZT Ceramics

Puripat Kantha; Teerapat Bunthod; Sasithron Jansrabua; Naris Barnthip; Siriporn Tigunta; Kamonpan Pengpat; Nuttapon Pisitpipathsin

doi:10.4028/www.scientific.net/AMM.866.263

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 866Effect of Sintering Method on the Microstructure...

Effect of Sintering Method on the Microstructure and Dielectric Properties of Lead-Free BCZT Ceramics

Abstract:

Lead-free ceramic powders based on Ba_0.85Ca_0.15Zr_0.1Ti_0.9O₃ (BCZT) were successfully fabricated by the conventional solid-state reaction method. Two kinds of sintering methods: zero-time sintering (ZTS) and conventional sintering (CS) were applied to obtain BCZT ceramics. The microstructure and dielectric properties of BCZT ceramics sintered from the ZTS and the CS method were systematically studied. It was found that the coarse-grained samples with grain sizes ~ 19-21 μm were obtained from the ZTS and the CS method. The CS method with a long time of dwelling was helpful for improving the dielectric properties of lead-free BCZT ceramics. The maximum dielectric constant of 9926 and low dielectric loss of 0.0108 were obtained at CS with 8h.

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Periodical:

Applied Mechanics and Materials (Volume 866)

Pages:

263-266

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.866.263

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Online since:

June 2017

Authors:

Puripat Kantha, Teerapat Bunthod, Sasithron Jansrabua, Naris Barnthip, Siriporn Tigunta, Kamonpan Pengpat, Nuttapon Pisitpipathsin*

Keywords:

BCZT, Dielectric Properties, Lead-Free Ceramic, Sintering Method

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