ZnO-B2O3-Na2O玻璃对Ca[(Li1/3Nb2/3)0.95Zr0.15]O3＋δ陶瓷微波介电性能的影响  

Effect of ZnO-B_2O_3-Na_2O Glass on Microwave Dielectric Properties of Ca[(Li_(1/3)Nb_(2/3))_(0.95)Zr_(0.15)]O_(3+δ) Ceramics

作　　者：熊钢[1] 周东祥[2] 李忠明[1] 

机构地区：[1]咸宁学院信息工程学院,咸宁437005 [2]华中科技大学电子科学与技术系,武汉430074

出　　处：《硅酸盐通报》2008年第3期477-480,共4页Bulletin of the Chinese Ceramic Society

基　　金：国家高技术研究发展计划资助项目(2001AA-ZB3201-02);湖北省科技攻关计划资助项目(2004AA102A01);湖北省教育厅重点项目(D200628002)

摘　　要：研究了ZnO-B_2O_3-Na_2O玻璃对陶瓷的烧结性能及微波介电特性的影响。研究表明ZBN的掺入能有效降低对Ca[(Li_(1/3)Nb_(2/3))_(0.95)Zr_(0.15)]O_(3+δ)陶瓷体系的烧结温度150～230℃,谐振频率温度系数随ZBN掺入量增加及烧结温度的提高,由负值向正值方向增大。在990℃,掺入3%(质量分数,下同)的ZBN,陶瓷微波介电性能最佳:εr=31.5,Qf=12530GHz,τf=-7.6ppm/℃。The effects of ZnO-B2O3-Na2O （ZBN）glass on the sinterability and microwave dielectric properties of Ca[（Li1/3Nb2/3）0.95Zr0.15]O3＋δ ceramics were investigated. ZBN glass doping can effectively reduce sintering temperatue by 150 - 230 ℃ The temperature coefficient of resonator frequency τf increased with an increase of ZBN glass content and sintering temperatue. When ZBN glass of 3% were added, the optimum microwave dielectric properties： ετ =31.5, Qf= 12530 GHz and τf =-7.6 ppm/℃ were obtained at the sintering temperature of 990 ℃.

关 键 词：Ca[(Li1/3Nb2/3)0.95Zr0.15]O3+δ陶瓷 低温烧结 ZBN玻璃 微波介电特性 

分 类 号：O482.4[理学—固体物理]