caa a22 4500 445362960 CHVBK 20180317142921.0 cr unu---uuuuu 170323e20110601xx s 000 0 eng 10.1007/s10832-011-9643-x doi (NATIONALLICENCE)springer-10.1007/s10832-011-9643-x Dielectric tunability and microwave properties of Ba0.5Sr0.5TiO3-BaMg6Ti6O19 composite ceramics for tunable microwave device applications [Elektronische Daten] [Xiujian Chou, Jing Wang, Zhenyu Zhao, Wenping Geng, Wendong Zhang, Jiwei Zhai] Ba0.5Sr0.5TiO3-BaMg6Ti6O19 microwave composite ceramics with low dielectric constant and relatively high tunability were fabricated via the solid-state reaction method. The microstructures and microwave dielectric properties of the composite ceramics have been investigated. BaMg6Ti6O19 and Ba0.5Sr0.5TiO3 can be friendly coexistent in the composite material system without obvious chemical reactions. With increasing content of BaMg6Ti6O19 from 10wt.% to 60wt.%, the dielectric anomalous peaks of ferroelectric-paraelectric phase transition for the composite ceramics are suppressed and broadened. The dielectric constant can be effectively tailored from 2035 to 129. For composite ceramics with 60wt.% content of BaMg6Ti6O19, the dielectric loss still keeps around 0.002 and the tunability is 13.4% measured at a dc-applied electric field of 30kV/cm. The Q value of composite ceramics with 20wt.% content BaMg6Ti6O19 is 367 and the dielectric constant is cut down to 665 at the microwave band of 1.579GHz. Springer Science+Business Media, LLC, 2011 Composites nationallicence Dielectric properties nationallicence Ferroelectricity nationallicence Microstructure nationallicence Ba0.5Sr0.5TiO3 nationallicence BaMg6Ti6O19 nationallicence Tunability nationallicence Chou Xiujian Key Laboratory of Instrumentation Science & Dynamic Measurement (North University of China), Ministry of Education, Science and Technology On Electronic Test & Measurement Laboratory, Xueyuan Road 3, 030051, Taiyuan, Shanxi Province, China aut Wang Jing Key Laboratory of Instrumentation Science & Dynamic Measurement (North University of China), Ministry of Education, Science and Technology On Electronic Test & Measurement Laboratory, Xueyuan Road 3, 030051, Taiyuan, Shanxi Province, China aut Zhao Zhenyu Key Laboratory of Instrumentation Science & Dynamic Measurement (North University of China), Ministry of Education, Science and Technology On Electronic Test & Measurement Laboratory, Xueyuan Road 3, 030051, Taiyuan, Shanxi Province, China aut Geng Wenping Key Laboratory of Instrumentation Science & Dynamic Measurement (North University of China), Ministry of Education, Science and Technology On Electronic Test & Measurement Laboratory, Xueyuan Road 3, 030051, Taiyuan, Shanxi Province, China aut Zhang Wendong Key Laboratory of Instrumentation Science & Dynamic Measurement (North University of China), Ministry of Education, Science and Technology On Electronic Test & Measurement Laboratory, Xueyuan Road 3, 030051, Taiyuan, Shanxi Province, China aut Zhai Jiwei Functional Materials Research Laboratory, Tongji University, Siping Road 1239, 200092, Shanghai, China aut Journal of Electroceramics Springer US; http://www.springer-ny.com 26/1-4(2011-06-01), 185-190 1385-3449 26:1-4<185 2011 26 10832 https://doi.org/10.1007/s10832-011-9643-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10832-011-9643-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Chou Xiujian Key Laboratory of Instrumentation Science & Dynamic Measurement (North University of China), Ministry of Education, Science and Technology On Electronic Test & Measurement Laboratory, Xueyuan Road 3, 030051, Taiyuan, Shanxi Province, China aut NATIONALLICENCE 700 1- Wang Jing Key Laboratory of Instrumentation Science & Dynamic Measurement (North University of China), Ministry of Education, Science and Technology On Electronic Test & Measurement Laboratory, Xueyuan Road 3, 030051, Taiyuan, Shanxi Province, China aut NATIONALLICENCE 700 1- Zhao Zhenyu Key Laboratory of Instrumentation Science & Dynamic Measurement (North University of China), Ministry of Education, Science and Technology On Electronic Test & Measurement Laboratory, Xueyuan Road 3, 030051, Taiyuan, Shanxi Province, China aut NATIONALLICENCE 700 1- Geng Wenping Key Laboratory of Instrumentation Science & Dynamic Measurement (North University of China), Ministry of Education, Science and Technology On Electronic Test & Measurement Laboratory, Xueyuan Road 3, 030051, Taiyuan, Shanxi Province, China aut NATIONALLICENCE 700 1- Zhang Wendong Key Laboratory of Instrumentation Science & Dynamic Measurement (North University of China), Ministry of Education, Science and Technology On Electronic Test & Measurement Laboratory, Xueyuan Road 3, 030051, Taiyuan, Shanxi Province, China aut NATIONALLICENCE 700 1- Zhai Jiwei Functional Materials Research Laboratory, Tongji University, Siping Road 1239, 200092, Shanghai, China aut NATIONALLICENCE 773 0- Journal of Electroceramics Springer US; http://www.springer-ny.com 26/1-4(2011-06-01), 185-190 1385-3449 26:1-4<185 2011 26 10832 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer