Influence of (Bi0.5M0.5)TiO3 (M=Li, Na, K, Rb) Addition on the Curie Temperature and PTC Effect of BaTiO3-Based Ceramics

Meng Meng Yang; Zhi Jian Peng; Cheng Biao Wang; Xiu Li Fu

doi:10.4028/www.scientific.net/KEM.697.239

Paper Titles

Evidence of Normal to Anti Ferroelectric Phase Transition of PLZT Transparent Ceramics of Different Zr/Ti Ratio
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Using Ferroelectric Thin Film as the Dielectric for Electrowetting-on-Dielectric
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Dielectric Breakdown and Failure of Ferroelectric Films as the Dielectric for Electrowetting Systems
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The Electrical Properties of Epitaxial Grown Sc-Doped (Na_0.₈₅K_0.15)_0.5Bi_0.5TiO₃ Thin Film Prepared by Sol-Gel Method
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Influence of (Bi_0.5M_0.5)TiO₃ (M=Li, Na, K, Rb) Addition on the Curie Temperature and PTC Effect of BaTiO₃-Based Ceramics
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Effect of Defect Characteristics on the Color of BaTiO₃-Based PTC Ceramic
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Electrode Interface Polarization in BaTiO₃-Based PTC Ceramics
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Densification Behavior and Dielectric Properties of CaO-B₂O₃-SiO₂ System Glass-Ceramics Containing ZrO₂
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 697Influence of (Bi0.5M0.5)TiO3 (M=Li, Na, K, Rb)...

Influence of (Bi_0.5M_0.5)TiO₃ (M=Li, Na, K, Rb) Addition on the Curie Temperature and PTC Effect of BaTiO₃-Based Ceramics

Abstract:

In order to investigate the influence of (Bi_0.5M_0.5)TiO₃ (M=Li, Na, K, Rb) addition on the Curie temperature (T_c) and positive temperature coefficient (PTC) effect of BaTiO₃-based ceramics, BaTiO₃-(Bi_0.5M_0.5)TiO₃ (M=Li, Na, K, Rb) solid solutions were prepared by a conventional solid sintering reaction using high-purity reagents. It was found that the T_c of the samples would vary with (Bi_0.5M_0.5)TiO₃ of different alkali ions, in which BT-BKT ceramics had the highest value (about 148 °C). Moreover, the incorporation of alkali ions would influence the PTC effect of the sample, which can be defined by the resistivity jump with the ratio of maximum to minimum resistivity (ρ_max/ρ_min). Under the present conditions, the ρ_max/ρ_min of BT-BRT and BT-BLT ceramics were almost equal and higher than those of BT-BNT and BT-BKT ceramics.

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Periodical:

Key Engineering Materials (Volume 697)

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239-242

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https://doi.org/10.4028/www.scientific.net/KEM.697.239

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July 2016

Authors:

Meng Meng Yang, Zhi Jian Peng, Cheng Biao Wang, Xiu Li Fu

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Curie Temperature, Electrical Properties, Lead Free, PTC Effect

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