Tunable BST:MgO dielectric composite by microwave sintering

被引：19

作者：

Agrawal, S ^{[1
]}

Guo, R ^{[1
]}

Agrawal, D ^{[1
]}

Bhalla, AS ^{[1
]}

机构：

[1] Penn State Univ, Mat Res Lab, Mat Res Inst, University Pk, PA 16802 USA

来源：

FERROELECTRICS | 2004年 / 306卷

关键词：

nano particle size; BST; BST : MgO; composites; field dependence; tunabifity;

D O I：

10.1080/00150190490460803

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Microwave sintering route was used for obtaining minimum chemical reactivity between the two phases (for sharp grain boundaries) and controlled microstructure in the composites of Ba1-xSrxTiO3 (BST) and MgO. Composites of desirable compositions of ferroelectric BST and non-ferroelectric MgO were microwave sintered at a frequency of 2.45 GHz. Low dielectric constant, controlled microstructure, high relative density, and sharp grain boundary in BST:MgO composites were achieved. The depressed dielectric constant and tangent loss, high tunability and K-factor values are measured in the sintered composites. This paper describes the detailed studies on the microwave sintered BST:MgO composites and their tunable dielectric properties and microstructure development.

引用

页码：155 / 163

页数：9

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