李月明,张斌,宋婷婷,刘维良

• 1:景德镇陶瓷学院材料科学与工程学院

摘要(Abstract)：

采用传统陶瓷制备工艺,制备了添加10wt%NCB(Na2O-CaO-B2O3)复合氧化物的Ca1-x(Li1/2Sm1/2)xTiO(3x=0.700-0.875)(CLST-x)体系陶瓷,研究了添加NCB后CLST-x体系的晶相组成、显微结构、烧结性能及微波介电性能与组成关系。研究结果表明,添加复合氧化物NCB后,CLST-x体系各组成主晶相仍呈斜方钙钛矿结构,没有其它杂相。添加10wt%NCB后,CLST-x体系陶瓷均可在950℃下烧结致密,在此温度下材料具有较佳的微波介电性能,其中CLST-0.875陶瓷在950℃保温5h烧结后具有良好的微波介电性能:εr=63.6,Qf=1591GHz,τf=0ppm/℃,可满足高介多层微波器件的设计要求。

关键词(KeyWords)： Ca1-x(Li1/2Sm1/2)xTiO3;Na2O-CaO-B2O3;微波介质陶瓷;低温烧结

Abstract:

Keywords:

基金项目(Foundation): 江西省教育厅科技项目(编号:GJJ08312)

作者(Author): 李月明,张斌,宋婷婷,刘维良

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