Preparation and microwave dielectric properties of xBaZn2Ti4O11-(1-x)BaNd2Ti4O12ceramics
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所属单位:电子信息工程学院
发表刊物:Key Eng Mat
摘要:xBaZn2Ti4O11-(1-x)BaNd2Ti4O12(x = 0.18-0.30) ceramics were prepared by solid-state reaction method and their microwave dielectric properties were investigated with the purpose of finding a microwave ceramics with high dielectric constant (ϵr), high quality factor (Q×f ) and zero temperature coefficient of resonant frequency (τf).The two phase system BaZn2Ti4O11-BaNd2Ti4O12affected the unit cell volume and the microstructure, the microwave dielectric properties (ϵr, Q×f, τf). As increasing x from 0.18 to 0.30, the main phase composition was BaNd2Ti4O12. Therefore, the ϵrdecreased from 64.9 to 60.3 and the Q×f values raised from 11,350GHz to 13,210GHz, and the τfvalues decreased from 7ppm/° to -5ppm/°. The 0.22BaZn2Ti4O11-0.78BaNd2Ti4O12ceramics sintered at 1250°C for 4 h displayed the best dielectric constant ϵr,Q·f and τf, as 63.9, 12380 GHz and -0.1 ppm/° respectively. © 2017 Trans Tech Publications, Switzerland.
ISSN号:1013-9826
是否译文:否
发表时间:2017-01-01
合写作者:Wang, Xu,傅仁利,Xu, Yue,徐月芳,Yang, Yang,董洋洋,Cai, Jun-De,Luo, Ju-Hua
通讯作者:Wang, Xu,傅仁利,王旭东