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Effect of sintering temperature on dielectric properties of barium titanate glass-ceramic composites

MIN ZHOU1, QINGMENG ZHANG1,* , FEIHU TAN2, JUNYOU CHEN1, ZHUYE SUN1

Affiliation

  1. Advanced Electronic Materials Institute, GRIMAT Engineering Institute, CO., Ltd, Beijing, China
  2. State Key Laboratory of Advanced Materials for Smart Sensing, General Research Institute for Nonferrous Metals, Beijing 100088, China

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