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Li2Zn2(Mo1–xWx)3O12陶瓷的制备及其微波介电性能
作者:王丽珠1 吕学鹏1 2  静1 董作为1  勇1 
单位:(1. 南京航空航天大学材料科学与技术学院 南京 210016 2. 南京工程学院材料科学与工程学院 南京 211167) 
关键词:钼酸锂锌 离子取代 显微组织 微波介电性能 
分类号:TM28
出版年,卷(期):页码:2019,47(9):0-0
DOI:
摘要:

 采用固相反应法制备Li2Zn2(Mo1–xWx)3O12陶瓷,研究了其相组成、显微组织及微波介电性能的变化规律。结果表明:当W6+取代量在0~0.1范围内,Li2Zn2(Mo1–xWx)3O12陶瓷均显示出单相钒铁铜矿结构,形成了Li2Zn2(Mo1–xWx)3O12固溶体。随着W6+代量增加,Li2Zn2(Mo1–xWx)3O12陶瓷的相对密度、介电常数和Q×f值均先增大后减小,其τf值则逐渐增大。当W6+取代量为0.025时,Li2Zn2(Mo0.975W0.025)3O12陶瓷经630 ℃烧结2 h后具有较好的微波介电性能:εr=10.75,Q×f= 630 95 GHz,τf=–65×10−6/℃。

 
基金项目:
国家自然科学基金资助项目(No.51674148和No.51602145)江苏高校优势学科建设工程资助项目;中央高校基本科研业务费专项资金资助(No.NS2016060);三峡大学无机非金属晶态与能源转换材料重点实验室开放基金(2017KIE06)
作者简介:
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