caa a22 4500 445362812 CHVBK 20180317142920.0 cr unu---uuuuu 170323e20111001xx s 000 0 eng 10.1007/s10832-011-9652-9 doi (NATIONALLICENCE)springer-10.1007/s10832-011-9652-9 Preparation and properties of strontium barium niobate based glass-ceramics for energy storage capacitors [Elektronische Daten] [Guo-hua Chen, Wen-jun Zhang, Xin-yu Liu, Chang-rong Zhou] Na2O-BaO-SrO-Nb2O5-B2O3-SiO2 glass-ceramics were prepared by melt-casting followed by controlled crystallization. X-ray diffraction results show that Ba0.27Sr0.75Nb2O5.78 with tungsten bronze structure formed as the dielectric phases from the glass matrix at 800°C. However, a secondary phase NaSr1.2Ba0.8Nb5O15 occurs when crystallization temperature exceeds 850°C. The glass-ceramics exhibit excellent stability in permittivity values from room temperature to 200°C and low dielectric losses below 0.05. Electrical testing demonstrates that the breakdown strength increases with crystallization temperature. The P-E characteristics at room temperature do not show any clear ferroelectric behavior. The glass-ceramic material heated at 800°C/3h + 950°C/3h shows a breakdown strength of 1400kV/cm and its energy storage density can reach up to 4.0J/cm3, which may be a strong candidate for high energy density storage capacitors for portable or pulsed power applications. Springer Science+Business Media, LLC, 2011 Glass-ceramics nationallicence Strontium barium niobate nationallicence Electrical property nationallicence Capacitor nationallicence Chen Guo-hua School of Materials Science and Engineering, Guilin University of Electronic Technology, 541004, Guilin, China aut Zhang Wen-jun School of Materials Science and Engineering, Guilin University of Electronic Technology, 541004, Guilin, China aut Liu Xin-yu School of Materials Science and Engineering, Guilin University of Electronic Technology, 541004, Guilin, China aut Zhou Chang-rong School of Materials Science and Engineering, Guilin University of Electronic Technology, 541004, Guilin, China aut Journal of Electroceramics Springer US; http://www.springer-ny.com 27/2(2011-10-01), 78-82 1385-3449 27:2<78 2011 27 10832 https://doi.org/10.1007/s10832-011-9652-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10832-011-9652-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Chen Guo-hua School of Materials Science and Engineering, Guilin University of Electronic Technology, 541004, Guilin, China aut NATIONALLICENCE 700 1- Zhang Wen-jun School of Materials Science and Engineering, Guilin University of Electronic Technology, 541004, Guilin, China aut NATIONALLICENCE 700 1- Liu Xin-yu School of Materials Science and Engineering, Guilin University of Electronic Technology, 541004, Guilin, China aut NATIONALLICENCE 700 1- Zhou Chang-rong School of Materials Science and Engineering, Guilin University of Electronic Technology, 541004, Guilin, China aut NATIONALLICENCE 773 0- Journal of Electroceramics Springer US; http://www.springer-ny.com 27/2(2011-10-01), 78-82 1385-3449 27:2<78 2011 27 10832 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer