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(Nb₂O₅)_1-x（TiO₂）_x陶瓷的制备及其介电性能的研究

Sintering and Dielectric Porperties of （Nb₂O₅）_1-x（TiO₂）_x Polycrystalline Ceramics

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【Author】 ZHANG Qiu-lin~1,WANG Yue~1,LIU Guo-qing~1,JIANG Yi-jian~2(1.College of Applied Science,Beijing University of Technology,Beijing 100022, China2.National Center of Laser Technology,Beijing University of Technology,Beijing 100022,China)

【机构】北京工业大学应用数理学院；北京工业大学国家激光产学研中心北京100022；北京100022；

【摘要】我们采用传统固态反应方法烧结制备(Nb2O5)1-x(TiO2)x陶瓷,给出了掺杂量x从0.01到0.13陶瓷的介电性能。在本工艺条件下,所有样品的介电系数均大于120。当样品中TiO2的掺杂量为5mol%时,陶瓷的介电性能最佳:介电系数和损耗分别为217和0.078。XRD测试实验给出,当x≤0.05时,陶瓷的主要相结构为Nb2O5;当x≥0.07时,主相为TiNb24O62。更多还原

【Abstract】 (Nb₂O₅)_1-x（TiO₂）_x ceramic system for x=0.01-0.13 were prepared by conventional solid-state reaction technique.All of the specimens showed high dielectric constants more than 120 with the process in this paper.The main phase structure is Nb₂O₅ when TiO₂ substitution is less than 5mol% or TiNb₂₄O₆₂ while substitution more than 7mol% for the specimens by X-ray diffractions technique.The best dielectric properties were presented when TiO₂ substitution reaches 5mol%,dielectric constant and loss value of which are 217 and 0.078 respectively.更多还原