Changes in the Electrical Conduction Mechanism with the Electrical Degradation of BaTiO3-Based Ceramics

Makito Nakano; Akira Saito; Nobuyuki Wada

doi:10.4028/www.scientific.net/KEM.388.201

Paper Titles

Analysis of Nonlinear Dielectric Characteristics of (Ba, Sr)TiO₃ Thin Films and their Frequency Conversion Application
p.183

Preparation of MBi₄Ti₄O₁₅ (M=Ba,Ca) Thick Films by Screen Printing
p.187

Preparation of (Ba, Sr)TiO₃ Thin Films on Glazed Alumina Substrate and Analysis of their Electric Properties
p.191

Laser-Anneal of Metal-Based Micro Optical Scanner Derived by Aerosol Deposition
p.195

Changes in the Electrical Conduction Mechanism with the Electrical Degradation of BaTiO₃-Based Ceramics
p.201

Grain-Orientation Control of Bi₅FeTi₃O₁₅ Ceramics Prepared by Magnetic-Field-Assisted Electrophoretic Deposition Method
p.205

Effect of Template Particle Formation on Texture Development in Bi_0.5Na_0.5TiO₃ Ceramics
p.209

Growth Condition and Ferroelectric Property of Mn-Doped Na_0.5K_0.5NbO₃ Crystal
p.213

Dielectric Property of Poly- and Single-Crystalline BaTi₂O₅ Co-Substituted with SrO and ZrO₂
p.217

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Changes in the Electrical Conduction Mechanism with the Electrical Degradation of BaTiO₃-Based Ceramics

Abstract:

The electrical degradation mechanisms of BaTiO3-based ceramics were investigated by measuring the dependence of leakage current on high electric fields. Before the degradation, the leakage current predominately obeyed Ohm’s law and Poole-Frenkel relation. As the degradation progressed, the Poole-Frenkel emission current increased. Moreover, the total current at the high electric fields also comprised Schottky emissions between cathodes and dielectric layers.