Effect of CaO and ZrO2 co-substitution on dielectric properties of BaTi2O5 prepared by arc melting

Yue Xinyan; Tu Rong; Goto Takashi; Ru Hongqiang

doi:10.2109/jcersj2.117.435

Effect of CaO and ZrO₂ co-substitution on dielectric properties of BaTi₂O₅ prepared by arc melting

Yue Xinyan, Tu Rong, Goto Takashi, Ru Hongqiang

Materials Processing and Characterization Division

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

CaO and ZrO₂ co-substituted polycrystalline BaTi ₂O₅, (Ba_1-xCa_x)(Ti _0.995Zr_0.005)₂O₅, (BCT ₂Z), was prepared by arc melting and the dielectric properties were investigated by AC impedance spectroscopy. b-direction orientation was obtained at any composition. The lattice parameters of a-, b- and c-axes first increased until x = 0.003 and then slightly decreased with increasing CaO content up to x = 0.020. The maximum permittivity of polycrystalline BaTi₂O ₅ showed the highest value of 6230 at x = 0.020. The T_c of polycrystalline BaTi₂O₅ slightly decreased from 750 to 716 K when CaO content was increased up to 0.020.

Original language	English
Pages (from-to)	435-438
Number of pages	4
Journal	Journal of the Ceramic Society of Japan
Volume	117
Issue number	1364
DOIs	https://doi.org/10.2109/jcersj2.117.435
Publication status	Published - 2009 Apr

Keywords

Arc melting
CaO
Dielectric properties
Orientation
Polycrystal

ASJC Scopus subject areas

Ceramics and Composites
Chemistry(all)
Condensed Matter Physics
Materials Chemistry

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title = "Effect of CaO and ZrO2 co-substitution on dielectric properties of BaTi2O5 prepared by arc melting",

abstract = "CaO and ZrO2 co-substituted polycrystalline BaTi 2O5, (Ba1-xCax)(Ti 0.995Zr0.005)2O5, (BCT 2Z), was prepared by arc melting and the dielectric properties were investigated by AC impedance spectroscopy. b-direction orientation was obtained at any composition. The lattice parameters of a-, b- and c-axes first increased until x = 0.003 and then slightly decreased with increasing CaO content up to x = 0.020. The maximum permittivity of polycrystalline BaTi2O 5 showed the highest value of 6230 at x = 0.020. The Tc of polycrystalline BaTi2O5 slightly decreased from 750 to 716 K when CaO content was increased up to 0.020.",

keywords = "Arc melting, CaO, Dielectric properties, Orientation, Polycrystal",

author = "Yue Xinyan and Tu Rong and Goto Takashi and Ru Hongqiang",

year = "2009",

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doi = "10.2109/jcersj2.117.435",

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publisher = "Ceramic Society of Japan/Nippon Seramikkusu Kyokai",

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T1 - Effect of CaO and ZrO2 co-substitution on dielectric properties of BaTi2O5 prepared by arc melting

AU - Xinyan, Yue

AU - Rong, Tu

AU - Takashi, Goto

AU - Hongqiang, Ru

PY - 2009/4

Y1 - 2009/4

N2 - CaO and ZrO2 co-substituted polycrystalline BaTi 2O5, (Ba1-xCax)(Ti 0.995Zr0.005)2O5, (BCT 2Z), was prepared by arc melting and the dielectric properties were investigated by AC impedance spectroscopy. b-direction orientation was obtained at any composition. The lattice parameters of a-, b- and c-axes first increased until x = 0.003 and then slightly decreased with increasing CaO content up to x = 0.020. The maximum permittivity of polycrystalline BaTi2O 5 showed the highest value of 6230 at x = 0.020. The Tc of polycrystalline BaTi2O5 slightly decreased from 750 to 716 K when CaO content was increased up to 0.020.

AB - CaO and ZrO2 co-substituted polycrystalline BaTi 2O5, (Ba1-xCax)(Ti 0.995Zr0.005)2O5, (BCT 2Z), was prepared by arc melting and the dielectric properties were investigated by AC impedance spectroscopy. b-direction orientation was obtained at any composition. The lattice parameters of a-, b- and c-axes first increased until x = 0.003 and then slightly decreased with increasing CaO content up to x = 0.020. The maximum permittivity of polycrystalline BaTi2O 5 showed the highest value of 6230 at x = 0.020. The Tc of polycrystalline BaTi2O5 slightly decreased from 750 to 716 K when CaO content was increased up to 0.020.

KW - Arc melting

KW - CaO

KW - Dielectric properties

KW - Orientation

KW - Polycrystal

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