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Crystals 2017, 7(6), 168;

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
Author to whom correspondence should be addressed.
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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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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