摘要
采用传统固相法制备钛酸锂锌(Li2ZnTi3O8)微波陶瓷,研究改性剂TiO2-B2O3的不同含量对其结构及微波介电性能的影响.结果表明:B2O3在Li2ZnTi3O8微波陶瓷的烧结过程中形成了液相,加速了传质,并降低Li2ZnTi3O8微波陶瓷的烧结温度到900℃.TiO2在Li2ZnTi3 O8陶瓷中起到调节谐振频率温度系数τf的作用.当TiO2-B2O3的添加量为质量分数4.5%时,900℃保温4h所制备的陶瓷具有良好的微波介电性能:介电常数εr=25.9,品质因数Q×f=46487 GHz,τf=-0.35×10^-6/℃.
The properties of TiO2-B2O3 doped Lithium Zinc Titanate(Li2 ZnTi3O8)microwave ceramics are investigated by the conventional solid-state methods,and the effects of TiO2-B2O3 doping content as modifiers on its structure and microwave dielectric properties are studied.The results show that B2O3 forms liquid phases and accelerates mass transfer during the sintering process,and lowers the sintering temperature of Li2ZnTi3O8 microwave ceramics to 900℃.Also,the addition of TiO2 could adjust the frequency temperature coefficientτf of Li2ZnTi3O8 microwave ceramics.When the added amount of TiO2-B2O3 is 4.5%,the ceramics sintered at 900℃for 4h show good microwave dielectric properties:εr=25.9,Q×f=46487 GHz,τf=-0.35×10^-6/℃,which demon-strate a potential application value in low temperature co-fired ceramics field.
作者
何茗
张婷
HE Ming;ZHANG Ting(Institute of Electronic Engineering,Chengdu Technological University,Chengdu 610031,Sichuan;Department of Biomedical Engineering,Chengdu Medical College,Chengdu 610500,Sichuan)
出处
《四川师范大学学报（自然科学版）》
CAS
2021年第1期99-102,共4页
Journal of Sichuan Normal University（Natural Science）
基金
四川省教育厅重点基金(18ZA0023)。
