电子元件与材料Issue(12):6-9,4.DOI:10.14106/j.cnki.1001-2028.2014.12.002
低温烧结(1-x)Ba3(VO4)2-xLi2WO4微波介质陶瓷的研究
Low temperature sintering and microwave dielectric properties of (1-x)Ba3(VO4)2-xLi2WO4 ceramics
摘要
Abstract
In order to obtain low temperature sintering of ceramics, the (1–x)Ba3(VO4)2-xLi2WO4(0.05≤x≤0.20)microwave dielectric ceramics were prepared by the solid-state method. The results show that with the increase of the amount of the Li2WO4 addition, the relative density, relative permittivityεr and quality factor Q· f of the compound ceramics all increase firstly and then decrease, however, the temperature coefficient of resonant frequencyτf decreases linearly. The density of the microwave dielectric ceramics with 15%(mole fraction) Li2WO4 addition sintered at 850℃for 2 h can reach 96.8%of the theoretical density and such samples have excellent microwave dielectric properties withεr=13.7, Q·f=97 000 GHz,τf=1.8×10–6/℃.关键词
低温烧结/Li2WO4/Ba3(VO4)2/微波介质陶瓷/密度/温度系数Key words
low temperature sintering/Li2WO4/Ba3(VO4)2/microwave dielectric ceramics/density/temperature coefficient分类
信息技术与安全科学引用本文复制引用
高景霞,唐海玲,李慧,张金平,张洋洋..低温烧结(1-x)Ba3(VO4)2-xLi2WO4微波介质陶瓷的研究[J].电子元件与材料,2014,(12):6-9,4.基金项目
郑州市科技局资助项目(No.20130679 ()
No.20140756 ()
No.20130755);郑州市科技厅资助项目(No.14210221036);河南省教育厅资助项目(No.14B510005);黄河科技学院科研资助项目(No.KYZR201307);郑州市电子信息功能材料及器件重点实验室(No.121PYFZX178) (No.KYZR201307)