Crystallization kinetics and dielectric characterization of CeO2-added BaO-SrO-Nb2O5-B2O3-SiO2 glass-ceramics

被引：43

作者：

Liu, Tao-yong ^{[1
]}

Chen, Guo-hua ^{[1
,2
]}

Song, Jun ^{[1
]}

Yuan, Chang-lai ^{[1
,2
]}

机构：

[1] Guilin Univ Elect Technol, Sch Mat Sci & Engn, Guilin 541004, Peoples R China

[2] Guilin Univ Elect Technol, Guangxi Key Lab Informat Mat, Guilin 541004, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2013年 / 39卷 / 05期

关键词：

Glass-ceramics; Dielectrics; Rare earth; BARIUM STRONTIUM-TITANATE; ENERGY-STORAGE DENSITY; TEMPERATURE; STRENGTH;

D O I：

10.1016/j.ceramint.2012.12.069

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Glass-ceramic materials of the SrO-BaO-Nb2O5-B2O3-SiO2 system, with various amounts of CeO2 added, have been prepared by conventional melt casting followed by controlled crystallization. The effect of CeO2 addition on crystallization kinetics has been explored for dielectric applications. The addition of CeO2 to the glass-ceramics decreases the activation energy of crystallization and enhances the dielectric constant as well as breakdown strength remarkably. Glass-ceramic with a dielectric constant of 49, breakdown strength of 1250 kV/mm and energy storage density of 3.39 J/cm(3) could be achieved, so this is promising in high energy storage density dielectrics. (C) 2012 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：5553 / 5559

页数：7

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