Properties of polycrystalline BaTi2O5 substituted with MgO prepared by a floating zone method

Xin Yan Yue; Hong Qiang Ru; Rong Tu; Takashi Goto

doi:10.4028/www.scientific.net/AMR.311-313.1144

Properties of polycrystalline BaTi₂O₅ substituted with MgO prepared by a floating zone method

Xin Yan Yue, Hong Qiang Ru, Rong Tu, Takashi Goto

Materials Processing and Characterization Division

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

MgO substituted polycrystalline BaTi₂O₅ (BT ₂), Ba_1-xMg_xTi₂O₅ (BMT₂), was prepared by a floating zone method (FZ-melting). The dielectric property of BMT₂ was investigated by an AC impedance method. At x = 0.005 MgO, the permittivity (ε_r) showed the maximum value of 5800 for FZ-melted specimens. The Curie temperature (T _c) decreased with increasing x and the permittivity showed a flat peak at x ≥ 0.03. Second phases of BaTiO₃, Ba₆Ti ₁₇O₄₀ and Ba₄MgTi₁₁O₂₇ were identified in polycrystalline BMT_2. BaTiO₃ and Ba₆Ti₁₇O₄₀ could be due to the decomposition of BT₂ at high temperatures.

Original language	English
Title of host publication	Advanced Materials and Processes
Pages	1144-1147
Number of pages	4
DOIs	https://doi.org/10.4028/www.scientific.net/AMR.311-313.1144
Publication status	Published - 2011
Event	2011 International Conference on Advanced Design and Manufacturing Engineering, ADME 2011 - Guangzhou, China Duration: 2011 Sep 16 → 2011 Sep 18

Publication series

Name	Advanced Materials Research
Volume	311-313
ISSN (Print)	1022-6680

Other

Other	2011 International Conference on Advanced Design and Manufacturing Engineering, ADME 2011
Country/Territory	China
City	Guangzhou
Period	11/9/16 → 11/9/18

Keywords

BaTiO
Dielectric property
Floating zone method
MgO

ASJC Scopus subject areas

Engineering(all)

Access to Document

10.4028/www.scientific.net/AMR.311-313.1144

Cite this

Yue, XY, Ru, HQ, Tu, R & Goto, T 2011, Properties of polycrystalline BaTi₂O₅ substituted with MgO prepared by a floating zone method. in Advanced Materials and Processes. Advanced Materials Research, vol. 311-313, pp. 1144-1147, 2011 International Conference on Advanced Design and Manufacturing Engineering, ADME 2011, Guangzhou, China, 11/9/16. https://doi.org/10.4028/www.scientific.net/AMR.311-313.1144

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title = "Properties of polycrystalline BaTi2O5 substituted with MgO prepared by a floating zone method",

abstract = "MgO substituted polycrystalline BaTi2O5 (BT 2), Ba1-xMgxTi2O5 (BMT2), was prepared by a floating zone method (FZ-melting). The dielectric property of BMT2 was investigated by an AC impedance method. At x = 0.005 MgO, the permittivity (εr) showed the maximum value of 5800 for FZ-melted specimens. The Curie temperature (T c) decreased with increasing x and the permittivity showed a flat peak at x ≥ 0.03. Second phases of BaTiO3, Ba6Ti 17O40 and Ba4MgTi11O27 were identified in polycrystalline BMT2. BaTiO3 and Ba6Ti17O40 could be due to the decomposition of BT2 at high temperatures.",

keywords = "BaTiO, Dielectric property, Floating zone method, MgO",

author = "Yue, {Xin Yan} and Ru, {Hong Qiang} and Rong Tu and Takashi Goto",

note = "Copyright: Copyright 2011 Elsevier B.V., All rights reserved.; 2011 International Conference on Advanced Design and Manufacturing Engineering, ADME 2011 ; Conference date: 16-09-2011 Through 18-09-2011",

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N2 - MgO substituted polycrystalline BaTi2O5 (BT 2), Ba1-xMgxTi2O5 (BMT2), was prepared by a floating zone method (FZ-melting). The dielectric property of BMT2 was investigated by an AC impedance method. At x = 0.005 MgO, the permittivity (εr) showed the maximum value of 5800 for FZ-melted specimens. The Curie temperature (T c) decreased with increasing x and the permittivity showed a flat peak at x ≥ 0.03. Second phases of BaTiO3, Ba6Ti 17O40 and Ba4MgTi11O27 were identified in polycrystalline BMT2. BaTiO3 and Ba6Ti17O40 could be due to the decomposition of BT2 at high temperatures.

AB - MgO substituted polycrystalline BaTi2O5 (BT 2), Ba1-xMgxTi2O5 (BMT2), was prepared by a floating zone method (FZ-melting). The dielectric property of BMT2 was investigated by an AC impedance method. At x = 0.005 MgO, the permittivity (εr) showed the maximum value of 5800 for FZ-melted specimens. The Curie temperature (T c) decreased with increasing x and the permittivity showed a flat peak at x ≥ 0.03. Second phases of BaTiO3, Ba6Ti 17O40 and Ba4MgTi11O27 were identified in polycrystalline BMT2. BaTiO3 and Ba6Ti17O40 could be due to the decomposition of BT2 at high temperatures.

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