低温烧结Ca[(Li_(0.33)Nb_(0.67))_(0.7)Ti_(0.3)]O_(3-δ)陶瓷及其微波介电性能  

Low Temperature Sintering and Microwave Dielectric Properties of Ca[(Li_(0.33)Nb_(0.67))_(0.7)Ti_(0.3)]O_(3-δ) Ceramic

作　　者：童建喜[1] 张启龙[1] 朱玉良 徐红梅 杨辉[1] 

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310043

出　　处：《材料科学与工程学报》2003年第6期859-861,共3页Journal of Materials Science and Engineering

基　　金：浙江省重大科技攻关资助项目(0 2 1 1 0 1 562 )

摘　　要：采用锌硼硅玻璃作为烧结助剂实现了Ca[(Li0 33Nb0 6 7) 0 7Ti0 3]O3-δ陶瓷的低温烧结 ,研究了锌硼硅玻璃添加量对Ca[(Li0 33Nb0 6 7) 0 7Ti0 3]O3-δ陶瓷的烧结特性、微观结构和微波介电性能的影响。研究表明 :随着锌硼硅玻璃添加量的增加 ,陶瓷体密度和介电常数迅速增加 ,而Q·f值下降。在 910℃的温度下 ,通过掺入 8wt%的锌硼硅玻璃 ,获得了介电性能较好的低温共烧陶瓷 ,其εr=36 94 ,Q·f=4 380GHz(3 35GHz)。ZnO-B 2O 3-SiO 2(ZBS) glass was used as sintering aid to decrease the sintering temperature of Ca[(Li 0.33Nb 0.67) 0.7Ti 0.3]O 3-δ (CLNT) ceramic. The influence of the addition of ZBS glass on the sinterability, microstructure and microwave dielectric properties of CLNT was investigated. It was found that the sintered density and dielectric constant gradually increased while Q·f value decreased with the increasing content of ZBS. A kind of low temperature co-fired ceramic was obtained by sintered at 910℃ with the addition of 8wt% ZBS glass and showed good dielectric properties:ε r=36.94,Q·f=4380GHz(3.35GHz).

关 键 词：锌硼硅玻璃 介电性能 低温共烧陶瓷 液相烧结 

分 类 号：TQ174.756[化学工程—陶瓷工业]