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Temperature-stable dielectric ceramics in Ba4Nd2Ti4Ta6O30/(La0.1Bi0.9)2Ti2O7 biphase system

Published online by Cambridge University Press:  31 January 2011

J. Wang ,
X. M. Chen  and
J. S. Yang
J. Wang
Affiliation:
Laboratory of Materials for Electronics and Communication, Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
X. M. Chen
Affiliation:
Laboratory of Materials for Electronics and Communication, Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
J. S. Yang
Affiliation:
Laboratory of Materials for Electronics and Communication, Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
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Abstract

Biphase dielectric ceramics in the system of (1 − x)Ba4Nd2Ti4Ta6O30/ x(La0.1Bi0.9) 2Ti2O7 were investigated to obtain a near-zero temperature coefficient of dielectric constant. With the increase in x, the dielectric constant increased slightly, and the temperature coefficient changed from negative to positive. High dielectric constant of ε = 143 and good temperature stabibility (τ ε = −48 ppm/ °C) were achieved in a composition of x = 0.45, and the increased dielectric loss became the new problem.

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Type
Articles
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Journal of Materials Research , Volume 14 , Issue 8 , August 1999 , pp. 3375 - 3378
Copyright
Copyright © Materials Research Society 1999

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References

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