ZBS玻璃对0.6Li_2ZnTi_3O_8-0.4Li_2TiO_3陶瓷微波介电性能及烧结特性的影响

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英文篇名：Effect of ZBS glass on microwave dielectric properties and sintering characteristics of 0. 6Li_2ZnTi_3O_8-0. 4Li_2TiO_3 ceramics 作者：张梦迪 ; 吕学鹏 ; 郑勇 英文作者：ZHANG Mengdi;LYU Xuepeng;ZHENG Yong;College of Materials Science and Technology,Nanjing University of Aeronautics and Astronautics;School of Materials Science and Engineering,Nanjing Institute of Technology; 关键词：0. ; 6Li_2ZnTi_3O_8-0. ; 4Li_2TiO_3陶瓷 ; ZBS玻璃 ; 低温共烧陶瓷 ; 相组成 ; 微观结构 ; 微波介电性能 英文关键词：0.6Li_2ZnTi_3O_8-0.4Li_2TiO_3 ceramics;;ZBS glass;;low temperature co-fired ceramic;;phase composition;;microstructure;;microwave dielectric properties 中文刊名：DZAL 英文刊名：Electronic Components and Materials 机构：南京航空航天大学材料科学与技术学院;南京工程学院材料科学与工程学院; 出版日期：2019-01-31 14:07 出版单位：电子元件与材料 年：2019 期：v.38;No.323 基金：国家自然科学基金资助项目(51674148; 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(NS2016060) 语种：中文; 页：DZAL201901007 页数：7 CN：01 ISSN：51-1241/TN 分类号：46-52

摘要

采用固相烧结法制备0. 6Li_2ZnTi_3O_8-0. 4Li_2TiO_3陶瓷,并研究了ZBS (ZnO-B2O3-SiO2)掺杂对0. 6Li_2ZnTi_3O_8-0. 4Li_2TiO_3陶瓷的相组成、致密度、微观形貌及微波介电性能的影响。结果表明,0. 6Li_2ZnTi_3O_8-0. 4Li_2TiO_3+xZBS陶瓷中仅存在Li_2ZnTi_3O_8和Li_2TiO_3相。随着x的增加,其致密化温度逐渐降低,相对介电常数εr和品质因子Q·f均先增加后减小,谐振频率温度系数τ_f基本不变。当x为1%(质量分数)时,0. 6Li_2ZnTi_3O_8-0. 4Li_2TiO_3+1%ZBS陶瓷在900℃烧结4 h后具有良好的微波介电性能:εr=25. 4,Q·f=88640 GHz,τ_f=-1×10~(-6)℃~(-1),且与Ag具有良好的化学相容性。
        0. 6Li_2ZnTi_3O_8-0. 4Li_2TiO_3 ceramics were prepared by the solid-state reaction method. The effects of ZBS (ZnO-B2O3-SiO2) doping on the phase composition,density,microstructure and microwave dielectric properties of 0. 6Li_2ZnTi_3O_8-0. 4Li_2TiO_3 ceramics were investigated. The results show that 0. 6Li_2ZnTi_3O_8-0. 4Li_2TiO_3+xZBS ceramics consist of Li_2ZnTi_3O_8 and Li_2TiO_3phases. With the increase of x,the densification temperature of ceramics decreases gradually,the relative permittivity εrand quality factor Q·f initially increase and then decrease,and the temperature coefficient of resonance frequency τ_f is stable. When x is 1% (mass fraction),the 0. 6Li_2ZnTi_3O_8-0. 4Li_2TiO_3+ 1% ZBS ceramic sintered at 900 ℃ for 4 h exhibits excellent microwave dielectric properties: εr= 25. 4,Q·f = 88640 GHz,τ_f=-1 × 10~(-6)℃~(-1). This ceramic also exhibits good chemical compatibility with Ag.

引文

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