Microstructure and dielectric properties of Ba0.6Sr0.4TiO3 / ZnNb2O6 composite ceramics

Guo Xin Hu; Feng Gao; Tong Wang; Zhen Li; Chang Sheng Tian

Microstructure and dielectric properties of Ba_0.6Sr_0.4TiO₃ / ZnNb₂O₆ composite ceramics

Guo Xin Hu, Feng Gao, Tong Wang, Zhen Li, Chang Sheng Tian

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

Research output: Contribution to journal › Article › peer-review

Abstract

Ba_0.6Sr_0.4TiO₃ / ZnNb₂O₆ (BSTZ) composite ceramics were fabricated by the conventional ceramic processing. The effects of the content of ZnNb₂O₆ on the microstructures and dielectric properties of BSTZ ceramics were investigated. The results showed that BSTZ composite ceramics can be sintered at a lower temperature. BaNb_3.6O₁₀ phase is observed in the ceramics besides perovskite phase Ba_0.6Sr_0.4TiO₃ and ZnNb₂O₆ phase. The dielectric constant and the dielectric loss decreased with the increase of ZnNb₂O₆ content. When the content of ZnNb₂O₆ is 0.6(molar ratio), the dielectric constant of composite ceramics is 74, and the dielectric loss is 0.043 at microwave frequencies. The dielectric tunability of 10.54% at 1.0 kV/mm DC bias could be obtained.

Original language	English
Pages (from-to)	122-125
Number of pages	4
Journal	Yadian Yu Shengguang/Piezoelectrics and Acoustooptics
Volume	32
Issue number	1
State	Published - Feb 2010

Keywords

Barium strontium titanate
Composite ceramics
Dielectric properties
Microwave properties
Tunability

Cite this

@article{c591590b600d404c8fdea3b85fbcf82c,

title = "Microstructure and dielectric properties of Ba0.6Sr0.4TiO3 / ZnNb2O6 composite ceramics",

abstract = "Ba0.6Sr0.4TiO3 / ZnNb2O6 (BSTZ) composite ceramics were fabricated by the conventional ceramic processing. The effects of the content of ZnNb2O6 on the microstructures and dielectric properties of BSTZ ceramics were investigated. The results showed that BSTZ composite ceramics can be sintered at a lower temperature. BaNb3.6O10 phase is observed in the ceramics besides perovskite phase Ba0.6Sr0.4TiO3 and ZnNb2O6 phase. The dielectric constant and the dielectric loss decreased with the increase of ZnNb2O6 content. When the content of ZnNb2O6 is 0.6(molar ratio), the dielectric constant of composite ceramics is 74, and the dielectric loss is 0.043 at microwave frequencies. The dielectric tunability of 10.54% at 1.0 kV/mm DC bias could be obtained.",

keywords = "Barium strontium titanate, Composite ceramics, Dielectric properties, Microwave properties, Tunability",

author = "Hu, {Guo Xin} and Feng Gao and Tong Wang and Zhen Li and Tian, {Chang Sheng}",

year = "2010",

month = feb,

language = "英语",

volume = "32",

pages = "122--125",

journal = "Yadian Yu Shengguang/Piezoelectrics and Acoustooptics",

issn = "1004-2474",

publisher = "Sichuan Institute of Piezoelectric and Acoustooptic Technology",

number = "1",

}

TY - JOUR

T1 - Microstructure and dielectric properties of Ba0.6Sr0.4TiO3 / ZnNb2O6 composite ceramics

AU - Hu, Guo Xin

AU - Gao, Feng

AU - Wang, Tong

AU - Li, Zhen

AU - Tian, Chang Sheng

PY - 2010/2

Y1 - 2010/2

N2 - Ba0.6Sr0.4TiO3 / ZnNb2O6 (BSTZ) composite ceramics were fabricated by the conventional ceramic processing. The effects of the content of ZnNb2O6 on the microstructures and dielectric properties of BSTZ ceramics were investigated. The results showed that BSTZ composite ceramics can be sintered at a lower temperature. BaNb3.6O10 phase is observed in the ceramics besides perovskite phase Ba0.6Sr0.4TiO3 and ZnNb2O6 phase. The dielectric constant and the dielectric loss decreased with the increase of ZnNb2O6 content. When the content of ZnNb2O6 is 0.6(molar ratio), the dielectric constant of composite ceramics is 74, and the dielectric loss is 0.043 at microwave frequencies. The dielectric tunability of 10.54% at 1.0 kV/mm DC bias could be obtained.

AB - Ba0.6Sr0.4TiO3 / ZnNb2O6 (BSTZ) composite ceramics were fabricated by the conventional ceramic processing. The effects of the content of ZnNb2O6 on the microstructures and dielectric properties of BSTZ ceramics were investigated. The results showed that BSTZ composite ceramics can be sintered at a lower temperature. BaNb3.6O10 phase is observed in the ceramics besides perovskite phase Ba0.6Sr0.4TiO3 and ZnNb2O6 phase. The dielectric constant and the dielectric loss decreased with the increase of ZnNb2O6 content. When the content of ZnNb2O6 is 0.6(molar ratio), the dielectric constant of composite ceramics is 74, and the dielectric loss is 0.043 at microwave frequencies. The dielectric tunability of 10.54% at 1.0 kV/mm DC bias could be obtained.

KW - Barium strontium titanate

KW - Composite ceramics

KW - Dielectric properties

KW - Microwave properties

KW - Tunability

UR - http://www.scopus.com/inward/record.url?scp=77950576970&partnerID=8YFLogxK

M3 - 文章

AN - SCOPUS:77950576970

SN - 1004-2474

VL - 32

SP - 122

EP - 125

JO - Yadian Yu Shengguang/Piezoelectrics and Acoustooptics

JF - Yadian Yu Shengguang/Piezoelectrics and Acoustooptics

IS - 1

ER -

Microstructure and dielectric properties of Ba_0.6Sr_0.4TiO₃ / ZnNb₂O₆ composite ceramics

Abstract

Keywords

Other files and links

Fingerprint

Cite this