| BST组分对介电可调性的影响 |
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| 引用本文： | 蔡玉平,韩代朝,宁如云.BST组分对介电可调性的影响[J].军械工程学院学报,2011(2):73-75. |
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| 作者姓名： | 蔡玉平 韩代朝 宁如云 |
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| 作者单位： | 军械工程学院基础部; |
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| 摘 要： | 从钛酸锶钡（BST）相变行为出发,指出在外加电场的作用下,氧八面体中心的Ti4＋偏离在零场中氧八面体的位置,可使介电常数降低,并讨论了组分对介电性的影响。结果表明,在居里点以上50-100 K的范围内具有介电可调性,并且越接近居里点可调性越强。
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| 关 键 词： | 相变理论 介电可调性 组分 |
Composition Factor of Influenced Dielectric Tunability of BST |
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| CAI Yu-ping,HAN Dai-zhao,NING Ru-yun.Composition Factor of Influenced Dielectric Tunability of BST[J].Journal of Ordnance Engineering College,2011(2):73-75. |
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| Authors: | CAI Yu-ping HAN Dai-zhao NING Ru-yun |
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| Institution: | CAI Yu-ping,HAN Dai-zhao,NING Ru-yun(Department of Basic Courses,Ordnance Engineering College,Shijiazhuang 050003,China) |
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| Abstract: | Barium strontium titanate(BST)exhibits giant dielectric nonlinearity constant with dc bias voltage.It is regarded as a displacement of the Ti4+ from the center of the oxygen octahedron.From phase transition behaviors of BST,composition factor of influenced dielectric tunability are discussed.The results show that dielectric tunability is achieved above 50~100 K of Curie point,and the closer it is to Curie point,the more dramatic the effect. |
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| Keywords: | phase transition dielectric tunability composition |
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