Structural and dielectric characterization of Gd2O3-added BaO-Na2O-Nb2O5-SiO2 glass-ceramic composites

被引：55
作者：
Zhou, Yi [1 ]
Zhang, Qingmeng [1 ]
Luo, Jun [1 ]
Tang, Qun [1 ]
Du, Jun [1 ]
机构：
[1] Gen Res Inst Nonferrous Met, Adv Elect Mat Inst, Beijing 100088, Peoples R China
来源：
SCRIPTA MATERIALIA | 2011年 / 65卷 / 04期
关键词：
X-ray diffraction (XRD); Scanning/transmission electron microscopy (STEM); Dielectrics; Rare earth; Glass-ceramic composites; BARIUM STRONTIUM-TITANATE; ENERGY-STORAGE DENSITY; SODIUM NIOBATE; FERROELECTRIC PROPERTIES; CRYSTALLIZATION; CAPACITORS; PERMITTIVITY; CRYSTALS; FAILURE; SYSTEM;
D O I：
10.1016/j.scriptamat.2011.04.027
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Glass-ceramic composites of the barium-sodium-niobate-silica system, with various amounts of Gd2O3 added, were synthesized through melt casting followed by controlled crystallization. The phase transition, microstructure, microchemistry and dielectric performances of the composites were characterized. The addition of 1 mol% Gd2O3 to the glass ceramics changed the dielectric constant and breakdown strength remarkably, indicating that glass ceramics with this composition are promising dielectric materials for high energy storage density dielectrics. Crown Copyright (C) 2011 Published by Elsevier Ltd. on behalf of Acta Materialia Inc. All rights reserved.
引用
收藏
页码：296 / 299
页数：4
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