Studies on BaO-Y2O3-TiO2 Microwave Dielectric Ceramics

摘要：

BaO-Y2O3-TiO2 microwave dielectric ceramics with the rich area of TiO2 were fabricated by a solid-state reaction method using BaCO3, Y2O3, TiO2 powders as starting materials. The sintering characteristics, phase composition, microstructures and microwave dielectric properties of BaO-Y2O3-TiO2 microwave dielectric ceramics with different k values sintered at different temperatures were investigated. The results showed that the sintering temperature of BaO-Y2O3-TiO2 microwave dielectric ceramics was lower (about 1240 ℃ ), and the sintered ceramics with the major phase of Y2Ti2O7 had excellent dielectric properties. When k =4, εr and tanδ were about 78.3 and 3 × 10-3 respectively. When k =5, εr and tanδ were about 53 and 9 × 10-4 respectively.

关键词： BaO-Y2O3-TiO2 microwave dielectric ceramics dielectric permittivity dielectric loss rare earths

作者: Zhang Qitu Li Bin Li Huili Zhang Xiaoping

作者单位: College of Materials Science and Engineering, Nanjing University of Technology, Nanjing 210009, China

会议类型: 国际会议

会议名称: 2006稀土玻璃陶瓷国际学术年会

会议地点: 海口

会议语种:英文

页码: 30-33

在线出版日期: 2006-11-13（万方平台首次上网日期，不代表论文的发表时间）