V_2O_5的引入方式对锂铌钛微波陶瓷性能的影响  

The Influence of Different Introduce Mode of V_2O_5 on the Microwave Dielectic Properties of Li_2O-Nb_2O_5-TiO_2

作　　者：刘兴元[1] 张启龙[1] 杨辉[1] 童建喜[1] 陆德龙 

机构地区：[1]浙江大学材料系,浙江杭州310027 [2]浙江正原电气股份有限公司,浙江嘉兴314003

出　　处：《电子元件与材料》2004年第5期15-18,共4页Electronic Components And Materials

摘　　要：研究了Li_(1+x-y)Nb_(1-x-3y)Ti_(x+4y)微波介质陶瓷以V_2O_5作为烧结助剂的烧结机理,V_2O_5不同的引入方式对材料主晶相预合成度、钒在粉体中的分散性能、烧结性能和微波性能的温度稳定性等的影响。研究表明,该体系属于液相烧结,对V_2O_5进行热处理有利于提高预合成度,有利于制备均匀的陶瓷粉料,有利于提高烧结性能和微波性能的稳定性。The mechanism of sintering Li_(1+x-y)Nb_(1-x-3y)Ti_(x+4y)O_3 with V_2O_5, the influence of different introduce mode of V_2O_5 on the crystallinity of calcined powders, the dispersion of vanadium in calcined powders, and on the stability of sintering characteristics and microwave dielectic properties with sintering temperature were investigated。Liqure-phase was found in the system, heat treatment enhances crystallinity, improves the disperse of vanadium and the stability of sintering characteristics and microwave dielectic properties.

关 键 词：锂铌钛微波陶瓷 LTCC 烧结机理 稳定性 五氧化二钒 

分 类 号：TM28[一般工业技术—材料科学与工程]