caa a22 4500 445826762 CHVBK 20180317145301.0 cr unu---uuuuu 170323e20110901xx s 000 0 eng 10.1007/s10854-011-0328-7 doi (NATIONALLICENCE)springer-10.1007/s10854-011-0328-7 Compositionally graded multilayer BaxSr0.95−xCa0.05TiO3 ceramics prepared by tape casting for use as dielectric materials [Elektronische Daten] [Qian Jia, Hui Ji, Xiao Li, Yong Xing, Hui Liang] Compositionally graded multilayer BaxSr0.95−xCa0.05TiO3 (BSCT) ceramics were prepared via tape casting method using nanometer powders from co-precipitation. Microstructures and dielectric properties of the BSCT system were investigated. The powders were characterized by using transmission electron microscope and BET surface area measurement. Surface morphologies of the sintered samples and multilayer structure were examined by scanning electron microscopy. BSCT particles were of spherical shape with diameters in the range of 73-93nm. Their specific surface areas were in the range of 11.7-14.6m2/g. The graded BSCT ceramics with nine layers laminated in vertical way exhibited a higher sintered density, with an average grain size of 0.4μm, after sintered at 1,200°C. Dielectric constant, dielectric loss and tunability of the graded ceramics were 2223.94, 1.5×10−3 at 2MHz and 42.9% at 3.0kV/mm, with good dielectric temperature and frequency stability, which made it a promising candidate used for tunable ceramic capacitors and phase shifters. Springer Science+Business Media, LLC, 2011 BaxSr0.95−xCa0.05TiO3 nationallicence Graded multilayer nationallicence Tape casting nationallicence Dielectric properties nationallicence Jia Qian Key Laboratory for Advanced Ceramics and Machining Technology of Ministry of Education, School of Materials Science and Engineering, Tianjin University, 300072, Tianjin, People's Republic of China aut Ji Hui Key Laboratory for Advanced Ceramics and Machining Technology of Ministry of Education, School of Materials Science and Engineering, Tianjin University, 300072, Tianjin, People's Republic of China aut Li Xiao Key Laboratory for Advanced Ceramics and Machining Technology of Ministry of Education, School of Materials Science and Engineering, Tianjin University, 300072, Tianjin, People's Republic of China aut Xing Yong Key Laboratory for Advanced Ceramics and Machining Technology of Ministry of Education, School of Materials Science and Engineering, Tianjin University, 300072, Tianjin, People's Republic of China aut Liang Hui Key Laboratory for Advanced Ceramics and Machining Technology of Ministry of Education, School of Materials Science and Engineering, Tianjin University, 300072, Tianjin, People's Republic of China aut Journal of Materials Science: Materials in Electronics Springer US; http://www.springer-ny.com 22/9(2011-09-01), 1450-1455 0957-4522 22:9<1450 2011 22 10854 https://doi.org/10.1007/s10854-011-0328-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10854-011-0328-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Jia Qian Key Laboratory for Advanced Ceramics and Machining Technology of Ministry of Education, School of Materials Science and Engineering, Tianjin University, 300072, Tianjin, People's Republic of China aut NATIONALLICENCE 700 1- Ji Hui Key Laboratory for Advanced Ceramics and Machining Technology of Ministry of Education, School of Materials Science and Engineering, Tianjin University, 300072, Tianjin, People's Republic of China aut NATIONALLICENCE 700 1- Li Xiao Key Laboratory for Advanced Ceramics and Machining Technology of Ministry of Education, School of Materials Science and Engineering, Tianjin University, 300072, Tianjin, People's Republic of China aut NATIONALLICENCE 700 1- Xing Yong Key Laboratory for Advanced Ceramics and Machining Technology of Ministry of Education, School of Materials Science and Engineering, Tianjin University, 300072, Tianjin, People's Republic of China aut NATIONALLICENCE 700 1- Liang Hui Key Laboratory for Advanced Ceramics and Machining Technology of Ministry of Education, School of Materials Science and Engineering, Tianjin University, 300072, Tianjin, People's Republic of China aut NATIONALLICENCE 773 0- Journal of Materials Science: Materials in Electronics Springer US; http://www.springer-ny.com 22/9(2011-09-01), 1450-1455 0957-4522 22:9<1450 2011 22 10854 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer