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Title: High dielectric constant observed in (1 - X)Ba(Zr 0.07Ti 0.93)O 3-xBa(Fe 0.5Nb 0.5)O 3 binary solid-solution
Authors: Chatchai Kruea-In
Sukum Eitssayeam
Kamonpan Pengpat
Gobwute Rujijanagul
Keywords: Engineering
Materials Science
Physics and Astronomy
Issue Date: 1-Oct-2012
Abstract: Binary solid-solutions of the (1 - x)Ba(Zr0.07Ti0.93)O3-xBa(Fe0.5Nb0.5O3) system, with 0.1 ≤ x ≤ 0.9,were fabricated via a solid-state processing technique. X-ray diffraction analysis revealed that all samples exhibited a single perovskite phase. The BaFe0.5Nb0.5O3also promoted densification and grain growth of the system. Dielectric measurements showed that all samples displayed a relaxor like behavior. The x = 0.1 sample presented a dielectric-frequency and temperature with low loss tangent (<0.07 at 10 kHz). For x > 0.2 samples, the dielectric data showed a broad dielectric constant-temperature curve with a giant dielectric characteristic. In addition, a high dielectric constant > 50,000 (at 10 kHz and temperature > 150 °C) was observed for the x = 0.9 sample. © 2012 Published by Elsevier Ltd.
ISSN: 00255408
Appears in Collections:CMUL: Journal Articles

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