In this study, 0.35 K0.5Bi0.5TiO3-0.65 BaTiO3 composition (abbreviated as 0.35 KBT-0.65 BT3) was synthesized using a two-step calcination process, that combined hydrothermal (heated at 200°C for 2 h) and conventionally calcining (calcined at 850°C for 2 h) processes. After calcination, 0∼3wt% Bi2O3 was added into the 0.35 KBT-0.65 BT3 composition (0.35 KBT-0.65 BT3-X, X=0, 1, 2, and 3) as the sintering aid and for compensating the vaporization of Bi 2O3during the sintering process. After mixing with Bi 2O3, 0.35 KBT-0.65 BT3-X ceramics were sintered at 1050°C∼1125°C in air for 2h, and the sintering and dielectric characteristics of the 0.35 KBT-0.65 BT3-X ceramics were well developed. The X-ray diffraction (XRD) pattern and scanning electronic microscope (SEM) observation were used to analyze the variations of crystalline phase and microstructure of the 0.35 KBT-0.65 BT3-X ceramics. Temperature-dependent dielectric characteristics were measured with oscillating amplitude (50 mV) at 100 KHz by an HP4294A impedance analyzer by putting the sintered ceramics in a temperature-programmable testing chamber. The range of measured temperature was changed from 25°C to 500°C in order to find the maximum dielectric constant and Curie temperature of the 0.35 KBT-0.65 BT3-X ceramics.
|出版狀態||已發佈 - 2014|
|事件||2nd International Conference on Innovation, Communication and Engineering, ICICE 2013 - Qingdao, 中国|
持續時間: 2013 十月 26 → 2013 十一月 1
|其他||2nd International Conference on Innovation, Communication and Engineering, ICICE 2013|
|期間||2013/10/26 → 2013/11/01|
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