Effect of Microwave Sintering on the Microstructure and Dielectric Properties of Bi<sub>2</sub>O<sub>3</sub>-Doped (Ba<sub>0.6</sub>Sr<sub>0.4</sub>)(Ti<sub>0.94</sub>Cu<sub>0.06</sub>)O<sub>3</sub>Ceramics

• 作者: Ta-Chih Cheng Ying-Chieh Lee Yue-Lin Li
• 来源期刊: 玻璃与陶瓷期刊(英文)
• 学科: 工学
• 关键词: (Ba0.6Sr0.4)(Ti0.94Cu0.06)O3 (BSTC) DIELECTRIC Properties Microwave Sintering MICROSTRUCTURES
• 年，卷（期）: 2014,（1）
• 页码范围: 1-7
• 页数: 7页
• 分类号: TQ17

摘要

The effects of microwave sintering on the sintering behaviour, microstructure and dielectric properties of Bi2O3-doped (Ba0.6Sr0.4)(Ti0.94Cu0.06)O3 (BSTC) ceramics were investigated. The microstructure and dielectric properties of a BSTC ceramic were also studied given different amounts of Bi2O3 doping. Microwave heating with sintering temperatures below 1000°C significantly improves the densification of Bi2O3-doped BSTC ceramics. The BSTC ceramic with 1 wt% Bi2O3 addition sintered at 950°C in air for 30 min exhibited dielectric properties of er = 3756, dielectric loss of tanδ = 7 × 10-3 and bulk density > 96% of theoretical density.