Microstructure Control of Porous Barium Titanate Ceramics and their Sensor Properties

Kazuki Maeda; Ichiro Fujii; Kouichi Nakashima; Gakuyo Fujimoto; Kazuhiro Suma; Toru Sukigara; Satoshi Wada

doi:10.4028/www.scientific.net/KEM.582.32

Paper Titles

One-Axis-Oriented Crystal Growth of Lead Zirconate Titanate Thin Films on Metal Substrates Using Perovskite-Type Oxide Nanosheet Layer
p.15

TEM Analysis of the Nanostructure of Pb(Mg_1/3Nb_2/3)O₃ Thin Films by MOD Method
p.19

Preparation of Barium Titanate Nanoperticles with Necking Structure/Polymer Complex and their Dielectric Properties
p.23

Preparation of Barium Titanate Grain-Oriented Ceramics by Electrophoresis Deposition Method under High Magnetic Field Using Single-Domain Nanoparticles
p.27

Microstructure Control of Porous Barium Titanate Ceramics and their Sensor Properties
p.32

Synthesis and Characterization of BaTiO₃ Fine Powders by Pulse Jet Spray Pyrolysis
p.36

Domain Dynamics under Unipolar Electric Fields for BaTiO₃ Single Crystals
p.40

Improvement of Insulation Reliability of BaTiO₃-Based Ceramics Using Mixed Conductive Electrode
p.44

Polarization Switching Dynamics of Ferroelectric (Bi_0.5Na_0.5)TiO₃ Single Crystals
p.51

HomeKey Engineering MaterialsKey Engineering Materials Vol. 582Microstructure Control of Porous Barium Titanate...

Microstructure Control of Porous Barium Titanate Ceramics and their Sensor Properties

Abstract:

Porous barium titanate (BaTiO₃, BT) ceramics were prepared by a conventional sintering method using two kinds of BT particles. The relationship between pore structure (porosity and pore size) of BT ceramics and their sensor properties was investigated. Since a piezoelectric d₃₃ constant of BT depends largely on the pore structures, the microstructure control of porous BT ceramics is important to improve the figure-of-merit (g₃₃/ρ). In this study, the maximal piezoelectric g₃₃ constant value of 14.8×10^-3 V·m·N^-1 and the maximal g₃₃/ρ value of 3.14×10³ V·m⁴·N^-1·g^-1 were recorded at a porosity of approximately 23%.

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Periodical:

Key Engineering Materials (Volume 582)

Pages:

32-35

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.582.32

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Online since:

September 2013

Authors:

Kazuki Maeda, Ichiro Fujii, Kouichi Nakashima, Gakuyo Fujimoto, Kazuhiro Suma, Toru Sukigara, Satoshi Wada

Keywords:

Barium Titanate (BT), Piezoelectric Properties, Pore, Porous Ceramics, Sensor Application

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