| Li-Mo共掺杂Ba(Ti_(0.91)Zr_(0.09))O_3陶瓷的介电弛豫 |
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| 引用本文： | 宋天秀,丁士华,陈涛,杨秀玲.Li-Mo共掺杂Ba(Ti_(0.91)Zr_(0.09))O_3陶瓷的介电弛豫[J].电子元件与材料,2008,27(12). |
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| 作者姓名： | 宋天秀 丁士华 陈涛 杨秀玲 |
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| 作者单位： | 西华大学,材料科学与工程学院,四川,成都,610039 |
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| 基金项目： | 四川省教育厅资助项目，西华大学校人才基金 |
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| 摘 要： | 采用固相反应法制备了Ba1-xLix(Ti0.91Zr0.09)1-yMoyO3陶瓷,并研究了Li-Mo共掺杂对其相结构和介电性能的影响。结果表明:当x>0,y=0时,陶瓷为单一的四方钙钛矿结构;当x=0,y>0或x=y>0时,陶瓷出现第二相BaMoO4。在–30～+130℃,Li-Mo共掺杂时,陶瓷具有铁电–顺电弥散相变特征,随着频率的增加,介电常数峰值对应的温度tm移向高温,陶瓷由正常铁电体变成弛豫铁电体。
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| 关 键 词： | 无机非金属材料 Li-Mo共掺杂 Ba(Ti0.91Zr0.09)O3 介电弛豫 弥散相变 |
Dielectric relaxation of Li-Mo co-doped Ba(Ti_(0.91)Zr_(0.09))O_3 ceramics |
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| SONG Tian-xiu,DING Shi-hua,CHEN Tao,YANG Xiu-ling.Dielectric relaxation of Li-Mo co-doped Ba(Ti_(0.91)Zr_(0.09))O_3 ceramics[J].Electronic Components & Materials,2008,27(12). |
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| Authors: | SONG Tian-xiu DING Shi-hua CHEN Tao YANG Xiu-ling |
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| Affiliation: | SONG Tian-xiu,DING Shi-hua,CHEN Tao,YANG Xiu-ling (College of Materials Science , Engineering,Xihua University,Chengdu 610039,China) |
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| Abstract: | Ba1-xLix(Ti0.91Zr0.09)1-yMoyO3 ceramics were prepared by a solid-state reaction method and the effects of Li-Mo co-doping on the phase structures and dielectric properties of the ceramics were investigated. The results show that the ceramics posses single tetragonal perovskite structures when x > 0 and y = 0; the second phase BaMoO4 appears when x = 0 and y > 0 or x = y >0. The Li-Mo co-doped ceramics have the characteristics of ferroelectric-paraelectric diffused phase transition,and transform from normal ... |
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| Keywords: | Ba(Ti0 91Zr0 09)O3 |
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