Paper Titles
Effects of the Replacement of Ti by Zr on the Dielectric Properties of CaCu3Ti4012 Ceramics
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Effects of CuO on the Preparation, Microstructure and Dielectric Response of CaCu3Ti4O12
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Preparation and Characterization of CaCu3Ti4O12 Ceramics by Cold Isostatic Press Forming
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Preparation and Properties of CaCu3Ti4O12 Thick Film by Aerosol Deposition Method
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Dielectric Properties of Zr-Doped CaCu3Ti4O12 Ceramics
p.129
Low-Temperature Sintering of Ba5(Nb1-xVx)4O15 Ceramics with H3BO3
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The Characteristics of Ferroelectric Sr0.4Ba0.6Nb2-xVxO6 Dielectrics
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Preparation and Morphological Controlling of Nanophase NaNbO3 by Sol-Gel Method
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Difference in Ordering Ability Between Ca(Al1/2Nb1/2)O3 and Ca(Fe1/2Nb1/2)O3
p.144

Dielectric Properties of Zr-Doped CaCu3Ti4O12 Ceramics

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Abstract:

CaCu3(Ti1-xZrx)O12 ceramics (x = 0.02, 0.04, 0.06, 0.08) were prepared by the conventional solid-state reaction method. Phase compositions, microstructure and dielectric properties were examined by XRD, SEM and impedance spectroscopy, respectively. The experimental results indicated that there is no obvious effect on microstructure characteristic by substituting Zr4+ for Ti4+. It was found that the values of the dielectric constant for all of the samples dropped into the order of 102, which is significantly lower than the order of 105 that of normally reported in the literature. It was suggested that the presence of impurity phases played an important role for the degeneracy of dielectric properties.

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Periodical:

Key Engineering Materials (Volumes 368-372)

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129-131

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.368-372.129

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Online since:

February 2008

Authors:

Yong He, Ke Pi Chen, Dong Yu Liu, Zong De Liu

Keywords:

CaCu3Ti4O12 (CCTO), Giant Dielectric Constant, Zr-Doped

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© 2008 Trans Tech Publications Ltd. All Rights Reserved

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