掺Mn对Ca0.6La0.8/3TiO3陶瓷微波介电性能的影响OA北大核心CSCDCSTPCD
Effect of Mn-Doping on Microwave Dielectric Properties of Ca0.6La0.8/3TiO3 Ceramics
采用固相反应法制备Mn掺杂Ca0.6La0.8/3(Ti1-xMnx)O3陶瓷,研究了掺杂离子对其相结构和微波介电性能的影响.结果表明:Mn掺杂样品为单一的正交晶系钙钛矿结构;样品体积密度以及Q×f0值随着MnO2含量的增加呈现出先增大后减小趋势;而介电常数 εr随着MnO2含量的增加仅有小幅度降低;MnO2的加入有助于谐振频率温度系数τf的降低.当Mn掺杂量为0.015时,样品具有较佳的微波性能:εr=113、Q×f0=9877 GHz和τf=186×10-6/℃.
Mn-doped Ca0.6La0.8/3(Ti1-xMnx)O3 ceramics were prepared via a solid-state reaction method, and the effect of Mn-doping on the phase structures and microwave dielectric properties was investigated. The results show that all the Mn-doped samples are pure orthorhombic perovskite phases. The bulk density and Q×f0 value of the samples firstly increases and then decreases with increasing MnO2 content. The εr slightly decreases and the τf value reduces due to the …查看全部>>
庞锦标;窦占明;杨康;杨俊
中国振华集团云科电子有限公司,贵阳 550018中国振华集团云科电子有限公司,贵阳 550018中国振华集团云科电子有限公司,贵阳 550018中国振华集团云科电子有限公司,贵阳 550018
微波陶瓷掺杂固相反应介电性能
microwave ceramicdopingsolid state reactiondielectric property
《硅酸盐学报》 2017 (9)
1296-1302,7
博士后科学基金(2015M582537)国防科工局基础科研项目(JCKY2016C211007)贵州省重大专项(20163011)贵州省工业攻关项目(20153005)工信部强基工程项目(0714-EMTC02-5271/3)资助.
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