Phase, microstructure and dielectric properties of BaSrZnSi2O7 - Ba0.5Sr0.5TiO3 microwave tunable composite ceramics

被引：0
作者：
Zhang, Mingwei [1 ]
Xin, Le [2 ]
机构：
[1] Shandong Univ Technol, Sch Mat Sci & Engn, Zibo 255049, Shandong, Peoples R China
[2] Zibo Normal Coll, Primary Educ, Zibo 255130, Shandong, Peoples R China
来源：
OPTOELECTRONICS AND ADVANCED MATERIALS-RAPID COMMUNICATIONS | 2015年 / 9卷 / 5-6期
关键词：
Composite ceramics; Tunability; Microwave dielectric properties; Cation ordering; BARIUM STRONTIUM-TITANATE; BA1-XSRXTIO3; THIN-FILMS; MG;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
BaSrZnSi2O7-Ba0.5Sr0.5TiO3 composite ceramics were systematically characterized in terms of phase composition, microstructure and dielectric properties. It was found that dielectric permittivity peaks of the samples shifted to low temperatures initially and then kept invariable with increasing BaSrZnSi2O7 content. Tunability showed a similar trend to Curie temperature. The variation in Q value was mainly related to whether the 'doping' effect or 'composite' effect was dominated. The sample with 60 wt% BaSrZnSi2O7 possessed a high tunability of 16%(similar to 10 kHz), a low dielectric permittivity of 152 and a high Q value of 417(similar to 2.720 GHz), making it a promising candidate for applications as electrically tunable microwave devices.
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页码：673 / 677
页数：5
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