Energy-storage properties and high-temperature dielectric relaxation behaviors of relaxor ferroelectric Pb(Mg1/3Nb2/3)O3-PbTiO3 ceramics

(1  −  x)Pb(Mg1/3Nb2/3)O3−xPbTiO3 (x  =  0, 5, and 10 mol%) ceramics were prepared using a conventional mixed oxide solid state reaction method. The low-temperature relaxor behavior of (1  −  x)Pb(Mg1/3Nb2/3)O3-xPbTiO3 ceramics were examined in the temperature range from 120 to 523 K. A broad dielec...

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Bibliographic Details
Published in:Journal of physics. D, Applied physics Applied physics, 2016-02, Vol.49 (9)
Main Authors: Zhang, T F, Tang, X G, Liu, Q X, Jiang, Y P, Huang, X X, Zhou, Q F
Format: Article
Language:English
Subjects:
dielectric relaxation
energy-storage
PMN-PT ceramic
relaxor behavior
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Summary:(1  −  x)Pb(Mg1/3Nb2/3)O3−xPbTiO3 (x  =  0, 5, and 10 mol%) ceramics were prepared using a conventional mixed oxide solid state reaction method. The low-temperature relaxor behavior of (1  −  x)Pb(Mg1/3Nb2/3)O3-xPbTiO3 ceramics were examined in the temperature range from 120 to 523 K. A broad dielectric maximum that shifted to higher temperatures with increasing frequency, signified the relaxor-type behavior of these ceramics. The value of the relaxation parameter γ  =  1.61-1.94 estimated from the linear fit of the modified Curie-Weiss law indicated the relaxor nature. High-temperature dielectric relaxation phenomena were found in the temperature region 600-850 K. Energy-storage properties were also analyzed, and the energy-storage density calculated from hysteresis loops reached about 0.47 J cm−3 at room temperature.
ISSN:0022-3727
1361-6463
DOI:10.1088/0022-3727/49/9/095302