Abstract
Barium titanate based glass-ceramics with high relative density and high dielectric constant were prepared via melt quench-ing followed by controlled crystallization. The effects of sintering process on phase composition, microstructure and dielec-tric properties were studied. The results reveal that cubic BaTiO3 phase is formed in the samples after crystallized at 1200 °C to 1230 °C for 1 hour. The relative density rises up to a relatively high value of 98.6% and almost no pores are found after crystallized at 1230 °C. The dielectric constant of the sample increases with the increasing crystallization temperature and reaches 1030 after crystallized at 1230°C..
Keywords
Glass-ceramic, Dielectric material, Barium titanate, Solid phase sintering.
Citation
MIN ZHOU, QINGMENG ZHANG, FEIHU TAN, JUNYOU CHEN, ZHUYE SUN, Effect of sintering temperature on dielectric properties of barium titanate glass-ceramic composites, Optoelectronics and Advanced Materials - Rapid Communications, 13, 11-12, November-December 2019, pp.609-612 (2019).
Submitted at: Jan. 28, 2019
Accepted at: Dec. 10, 2019