工艺因素对Ca[(Li_(1/3)Nb_(2/3))_(0.95)Zr_(0.15)]O_(3+δ)陶瓷微波介电性能的影响  

EFFECT OF PREPARATION PROCESSING 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[1,2] 周东祥[2] 李忠明[1] 

机构地区：[1]咸宁学院电子与信息工程学院,咸宁437100 [2]华中科技大学电子科学与技术系,武汉430074

出　　处：《陶瓷学报》2009年第2期142-145,共4页Journal of Ceramics

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

摘　　要：研究了制备工艺对Ca[(Li1/3Nb2/3)0.95Zr0.15]O3+δ(CLNZ)陶瓷的微观结构及微波介电特性的影响。研究表明,煅烧温度对晶粒形貌有明显影响,随煅烧温度的增加,气孔率减小,但超过900℃后又增加。当煅烧温度为900℃,在1150℃、4h烧结,陶瓷微波介电性能最佳:εr=31.6,Qf=13100GHz,τf=-9.4ppm/℃.The effects of preparation processing on microstructures and microwave dielectric properties ofCaE（Li1/3Nb2/3）0.95Zr0.15]O3＋δ （CLNZ） ceramics were investigated. The results of research show that the calcining temperature significantly influences the grain and porosity. With the increasing of calcining temperature, the porosity decreased until 900℃. Higher calcining temperature would cause the porosity to increase again. When sintered at 1150℃ for 4h, the optimum microwave dielectric properties： εr=31.6,Qf=13100GHz,Tf=-9.4pprn/℃ were obtained.

关 键 词：CLNZ陶瓷 工艺因素 微波介电特性 

分 类 号：TQ174.756[化学工程—陶瓷工业]