掺杂Li_2CO_3低温烧结ZnO-TiO_2系介质陶瓷的研究  

Research on low temperature sintered ZnO-TiO_2 dielectric ceramics doped by Li_2CO_3

作　　者：喻佑华[1] 杨俊瑞[1] 王相惠[1] 张岚[1] 宗瑞[1] 

机构地区：[1]景德镇陶瓷学院,江西景德镇333001

出　　处：《电子元件与材料》2008年第9期58-60,共3页Electronic Components And Materials

基　　金：江西省教育厅科技基金资助项目(No.赣教技字[2007]220号)

摘　　要：用传统工艺合成了Li2CO3掺杂的ZnO-TiO2系微波介质陶瓷,系统研究了其烧结行为、显微结构和介电性能。结果表明:掺杂质量分数1%的Li2CO3可使ZnO-TiO2陶瓷的烧结温度从1100℃降到980℃;掺杂3%Li2CO3时,在950℃保温2h烧结,于6～8GHz测试试样的介电性能为:εr约为20,Q·f约为40000GHz,τf约为–14×10–6℃–1。Li2CO3-doped ZnO-TiO2 system microwave dielectric ceramics were prepared by traditional processing. The systematic study results of sintering behavior, microstructure and dielectric properties show that sintering temperature of ZnO-TiO2 ceramic decrease from 1 100 ℃ to 980 ℃ with 1% （mass fraction） Li2CO3 addition; dielectric properties of samples with 3% Li2CO3 addition, sintered at 950 ℃ for 2 h, tested at the frequency of 6-8 GHz are： εr ≈20, Q ·f ≈40 000 GHz, tf≈14×10^-6℃^-1.

关 键 词：无机非金属材料 微波介质陶瓷 ZnO—TiO2系 Li2CO3掺杂 介电性能 

分 类 号：TM53[电气工程—电器]