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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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Mg_3(VO_4)_2-BiNbO_4复合陶瓷的低温烧结及微波介电性能
Abstract:
采用传统固相反应法制备(1-x)Mg3(VO4)2-xBiNbO4复合微波介质陶瓷材料,研究陶瓷的烧结特性、微观结构和微波介电性能。结果表明当x从0.2增加到0.6,在最佳烧结温度制备的Mg3(VO4)2-BiNbO4陶瓷的机械品质因数与频率的乘积(Q×f)随x增大而减小,相对介电常数(εr)随x增大而增大,谐振频率温度系数(τf)随x增大从正变为负;通过调节x值,在x=0.2处获得近零的τf。Mg3(VO4)2与BiNbO4的复合可实现低温烧结;当x=0.2、850℃的低温致密成瓷获得了优良的微波介电性能εr=14.76,Q×f=27930GHz(f0=8.29GHz),τf=3.65×10-6/℃。
| [1] | 李标荣,王筱珍,张绪礼.无机电介质[M].第一版,武汉:华中理工大学出版社,1995:154-156.LI Biaorong,WANG Xiaozhen,ZHANG Xuli.Inorganic Dielectric(in Chinese).1st ed,Wuhan:Huazhong University of Science and Tech-nology Press,1995:154-156. [2]WERSING W.Microwave Ceramics for resonators and filters[J].Curr Opin Solid State Mater Sci,1996,1:715-731. [3]邹佳丽.新型ZnO-SiO2低介高频微波介质陶瓷研究[D].杭州:浙江大学,2007.ZHOU Jiali.A new ZnO-SiO2low dielectric constant high frequency microwave dielectric ceramics(in Chinese,dissertation).Hangzhou:Zhejiang University,2007. [4]杨辉,张启龙.低温共烧微波介质陶瓷及其器件的研究进展[J].硅酸盐学报,2008,36(6):866-876.YANG Hui,ZHANG Qilong.J Chin Ceram Soc(in Chinese),2008,36(6):866-876. [5]JANTUNEN H,KANGASVIERI T,VAHAKANGAS J,et al.Design aspects of microwave components with LTCC technique[J].J Eur Ceram Soc,2003,23:2541-2548. [6]OGAWA H,YOKOI A,UMEMURA R,et al.Microwave dielectric properties of Mg3(VO4)2-xBa3(VO4)2ceramics for LTCC with near zero temperature coefficient of resonant frequency[J].J Eur Ceram Soc,2007,27:3099-3104. [7]石锋,吴顺华,韩旭,等.添加剂对Ba(Zn1/3Nb2/3)O3-Sr(Zn1/3?Nb2/3)O3陶瓷介电性能的影响[J].硅酸盐学报,2008,31(3):304-307.SHI Feng,WU Shunhua,HAN Xu,et al.J Chin Ceram Soc(in Chi-nese),2003,31(3):304-307. [8]UMEMURAA R,OGAWA H,OHSATO H,et al.Microwave dielectric properties of low-temperature sintered Mg3(VO4)2ceramic[J].J Eur Ceram Soc,2005,25:2865-2870. [9]KAGATA H,INOUE T,KATO J,et al.Low-fire bismuth-based dielec-tric ceramics for microwave use[J].Jpn J Appl Phys,1992,31(9B):3152-3155.
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