Relaxor Characteristics of BaTiO3-Bi(Mg1/2Ti1/2)O3 Ceramics

Ichiro Fujii; Keisuke Yamato; Mikio Shimada; Jumpei Hayashi; Hisato Yabuta; Makoto Kubota; Tetsuro Fukui; Kouichi Nakashima; Nobuhiro Kumada; Satoshi Wada

doi:10.4028/www.scientific.net/KEM.485.31

Paper Titles

The Effect of Oxygen Vacancies on the Dielectric Responses of BaTiO₃ Based Ceramics in the Ultra-Wide Frequency Range
p.15

First-Principles Calculations of Structural Changes Induced by Oxygen Vacancies in Tetragonal Phase BaTiO₃
p.19

Alkaline-Earth and Rare-Earth Elements and Oxygen Vacancy in BaTiO₃: Analyses by First-Principles Calculations and EXAFS
p.23

Molten Salt Synthesis of the Barium Strontium Titanate Ba_1-XSr_XTiO₃ with KOH-KNO₃
p.27

Relaxor Characteristics of BaTiO₃-Bi(Mg_1/2Ti_1/2)O₃ Ceramics
p.31

Preparation and Dielectric Properties of Dense Barium Titanate Nanoparticle Accumulations by Electrophoresis Deposition Method
p.35

Preparation of Potassium Niobate–Barium Titanate Ceramics Using Well-Dispersed Nanoparticles and their Dielectric Properties
p.39

Kinetics of Oxygen Diffusion into Multilayer Ceramic Capacitors during the Re-Oxidation Process and its Implications on Dielectric Properties
p.43

The Kelvin Probe Force Microscopy Measurement of Degraded Multilayer Ceramic Capacitors with Ni Inner Electrode
p.47

HomeKey Engineering MaterialsKey Engineering Materials Vol. 485Relaxor Characteristics of BaTiO3-Bi(Mg1/2Ti1/2)O3...

Relaxor Characteristics of BaTiO₃-Bi(Mg_1/2Ti_1/2)O₃ Ceramics

Abstract:

Relaxor characteristics of (1-x)BaTiO₃-xBi(Mg_1/2Ti_1/2)O₃ (x=0.1–0.7) ceramics were investigated. Microstructural observation showed second phases and no domain structure for the sample with x=0.6. Deviation from the Curie-Weiss behavior was found in temperature dependence of the inverse permittivity for all the samples. The stronger dielectric dispersion was found for x=0.6 and 0.7 and they were described by the Vogel-Fulcher relationship. The temperature dependence of the remanent polarization and coercive field indicated the freezing temperature was 100~150°C for x=0.6. The strong dielectric dispersion of x=0.6 is believed to be induced by the structural disorder due to the second phases.

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Periodical:

Key Engineering Materials (Volume 485)

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31-34

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.485.31

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Online since:

July 2011

Authors:

Ichiro Fujii, Keisuke Yamato, Mikio Shimada, Jumpei Hayashi, Hisato Yabuta, Makoto Kubota, Tetsuro Fukui, Kouichi Nakashima, Nobuhiro Kumada, Satoshi Wada

Keywords:

Barium Titanate (BT), Ferroelectric, Relaxor

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