Effect of BaF2 addition on crystallization kinetics and electrical properties of BaO-SrO-Nb2O5-B2O3-SiO2 glass-ceramics

被引：14

作者：

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

Liu, Tao-yong ^{[1
]}

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

Yang, Yun ^{[1
,2
]}

Zhou, Chang-rong ^{[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：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 2013年 / 378卷

关键词：

Glass-ceramics; Dielectric properties; Crystallization; BARIUM STRONTIUM-TITANATE; ENERGY-STORAGE DENSITY; DIELECTRIC-PROPERTIES; CAPACITORS; TEMPERATURE; COMPOSITES; SUBSTRATE; SILVER;

D O I：

10.1016/j.jnoncrysol.2013.07.013

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 added with various amounts of BaF2 have been prepared by conventional melting and heat treated crystallization method. The effect of BaF2 addition on crystallization kinetics has been explored for dielectric applications. The addition of BaF2 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 63.4, breakdown strength of 1120 kV/mm and energy storage density of 3.52 J/cm(3) could be achieved. A new electrode structure could effectively improve the electrical properties, and energy storage density could be increased from 3.52 J/cm(3) to 4.82 J/cm(3), which is promising in high energy storage density dielectrics. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：241 / 246

页数：6

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