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Crystals 2017, 7(6), 168; doi:10.3390/cryst7060168

Nb-Doped 0.8BaTiO3-0.2Bi(Mg0.5Ti0.5)O3 Ceramics with Stable Dielectric Properties at High Temperature

State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China
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Academic Editor: Haidong Zhou
Received: 6 April 2017 / Revised: 27 May 2017 / Accepted: 3 June 2017 / Published: 11 June 2017
(This article belongs to the Special Issue Crystal Structure of Electroceramics)
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Abstract

Nb-doped 0.8BaTiO3-0.2Bi(Mg0.5Ti0.5)O3 ceramics were prepared by conventional solid-state method. The dielectric properties and the structural properties were investigated. When Nb2O5 is doped into 0.8BT-0.2BMT system, a small amount of Ba4Ti12O27 secondary phase is formed. The lattice parameters gradually increase with the Nb2O5 doping. It is found that the temperature-capacitance characteristics greatly depend on Nb2O5 content. With the addition of 3.0 mol% Nb2O5, a 0.8BT-0.2BMT ceramic sample could satisfy the EIA X9R specification. This material is promising for high-temperature MLCC application. View Full-Text
Keywords: barium titanate; X9R; dielectric ceramics; MLCC barium titanate; X9R; dielectric ceramics; MLCC
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Si, F.; Tang, B.; Fang, Z.; Zhang, S. Nb-Doped 0.8BaTiO3-0.2Bi(Mg0.5Ti0.5)O3 Ceramics with Stable Dielectric Properties at High Temperature. Crystals 2017, 7, 168.

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