Low permittivity ferroelectric composite ceramics for tunable applications

被引：15

作者：

Nenasheva, E. A. ^{[1
,2
]}

Kartenko, N. F. ^{[3
]}

Gaidamaka, I. M. ^{[4
]}

Redozubov, S. S. ^{[1
,2
]}

Kozyrev, A. B. ^{[5
]}

Kanareykin, A. D. ^{[5
,6
]}

机构：

[1] Giricond Res Inst, St Petersburg, Russia

[2] Ceramics Co Ltd, St Petersburg, Russia

[3] Ioffe Inst, St Petersburg, Russia

[4] Natl Mineral Resources Univ, St Petersburg, Russia

[5] Electrotech Univ, St Petersburg, Russia

[6] Euclid Concepts LLC, Solon, OH USA

来源：

FERROELECTRICS | 2017年 / 506卷 / 01期

关键词：

Sintering; microstructure; electron microscopy; dielectric properties; BaTiO3 and titanates; MgO; TUNABILITY; (BA;

D O I：

10.1080/00150193.2017.1282761

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Bulk ferroelectric composite ceramics based on mixtures of BaTiO3/SrTiO(3)powders with Mg-containing additives such as Mg2TiO4, MgO in a wide range of compositions were fabricated and characterized. Phase relations, crystal structures, microstructures and dielectric properties of ferroelectrics were investigated. The best composition with respect to the overall combination of dielectric permittivity, tunability and loss factor was found to have E = 103, tan 0.002 at f = 3.5GHz and tunability 5-6% at a 15kV/cm biasing field. This combination of electrical parameters makes these materials among the most promising candidates for the development of high power tunable components.

引用

页码：174 / 183

页数：10

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