CuO对(Zn_(0.5)Mg_(0.5))Nb_2O_6陶瓷的烧结温度和微波介电性能的影响  

Influence of CuO on Sintering Temperature and Microwave Dielectric Properties of (Zn_(0.5)Mg_(0.5))Nb_2O_6 Ceramics

作　　者：陈乔[1] 林旭平[1] 马景陶[1] 邓长生[1] 周济[1] 

机构地区：[1]清华大学新型陶瓷与精细工艺国家重点实验室,北京100084

出　　处：《人工晶体学报》2009年第S1期9-12,共4页Journal of Synthetic Crystals

基　　金：国家"十一五"863计划资助(2007AA03Z449)

摘　　要：本文研究了助烧剂CuO对(Zn0.5Mg0.5)Nb2O6陶瓷的烧结特性、微观结构、相结构及微波介电性能的影响。研究结果表明,助烧剂CuO可以将(Zn0.5Mg0.5)Nb2O6陶瓷的烧结温度降低到950℃。添加3 wt%CuO,在950℃烧结的(Zn0.5Mg0.5)Nb2O6陶瓷密度达到了理论密度的97%以上,介电常数为20,Q×f值为33556 GHz。The effect of sintering agent CuO on the sintering characteristic,microstructure,phase composition and microwave dielectric properties of(Zn0.5Mg0.5)Nb2O6 ceramics were investigated.The result showed that CuO could lower the sintering temperature of(Zn0.5Mg0.5)Nb2O6 ceramic to 950 °C.By doping with 3 wt% CuO,(Zn0.5Mg0.5)Nb2O6 ceramic of a relative density over 97% could be prepared at 950 °C,and the ceramic showed good microwave dielectric properties of εr=20,Q×f=33556 GHz.

关 键 词：微波介质陶瓷 低温烧结 氧化铜 铌酸锌 

分 类 号：TQ174.12[化学工程—陶瓷工业]