添加BaCu(B_2O_5)和ZnO的CaO-Li_2O-Sm_2O_3-TiO_2陶瓷低温烧结研究  

Low-temperature sintering of CaO-Li_2O-Sm_2O_3-TiO_2 ceramics with BaCu(B_2O_5) and ZnO addition

作　　者：赵怀昆[1] 付亚东[1] 李谦[1] 黄金亮[1] 顾永军[1] 

机构地区：[1]河南科技大学材料科学与工程学院,河南洛阳471003

出　　处：《电子元件与材料》2011年第5期5-8,共4页Electronic Components And Materials

基　　金：河南省杰出青年基金资助项目(No.074100510008);河南省教育厅自然科学研究计划资助项目(No.2009A430005);河南省科技发展计划资助项目(No.092300410135)

摘　　要：采用固相反应法制备了添加复合助烧剂BaCu(B2O5)-ZnO的16CaO-9Li2O-12Sm2O3-63TiO2(CLST)陶瓷,研究了所制CLST陶瓷的烧结特性、微观结构及介电性能。结果表明:低熔点的BaCu(B2O5)-ZnO复合助烧剂的加入,使CLST陶瓷的烧结温度由1 300℃降至1 000℃,能和Cu共烧。当掺入质量分数1.00%的ZnO和4%的BaCu(B2O5)时,CLST陶瓷的介电性能较好:εr=69.53,tanδ=0.025 9,τf=8×10–6/℃(1 MHz)。16CaO-9Li2O-12Sm2O3-63TiO2（CLST） ceramics doped with sintering agent of BaCu（B2O5）-ZnO were prepared by the solid state raction method.The sintering property,microstructure and microwave dielectric properties of the CLST ceramics were investigated.The results show that the densification of CLST ceramic specimens is enhanced by adding ZnO and BaCu（B2O5） due to the liquid phase sintering.The sintering temperature of CLST ceramics is lowered from 1 300 ℃ to 1 000 ℃,suggesting it can be co-fired with Cu.The CLST ceramic specimen with 1.00%（mass fraction） ZnO and 4% BaCu（B2O5） addition exhibits optimum dielectric properties（εr=69.53,tanδ=0.025 9,τf =8×10–6 /℃） at 1 MHz.

关 键 词：微波介质陶瓷 液相烧结 介电性能 BaCu(B2O5) ZNO 

分 类 号：TM28[一般工业技术—材料科学与工程]