| YF_3掺杂对Ba_(0.6)Sr_(0.4)TiO_3介电可调性的影响 |
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| 引用本文： | 刘珊珊,赵玉珍,王希林,周和平. YF_3掺杂对Ba_(0.6)Sr_(0.4)TiO_3介电可调性的影响[J]. 稀有金属材料与工程, 2009, 38(Z2) |
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| 作者姓名： | 刘珊珊 赵玉珍 王希林 周和平 |
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| 作者单位： | 清华大学,新型陶瓷与精细工艺国家重点实验室,北京,100084 |
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| 摘 要： | 采用传统工艺制备了YF_3掺杂的Ba_0.6Sr_0.4TiO_3陶瓷材料,研究了YF_3掺杂比例对钛酸锶钡材料结构及介电性能的影响.结果表明:烧结后得到的BSTO材料具有典型的钙钛矿结构;YF_3掺杂具有降低Ba_0.6Sr_0.4TiO_3材料的介电常数、细化陶瓷晶粒和提高介电常数温度稳定性的作用.在氟化钇掺杂比例1%时介电常数降至1887(100 kHz),介电可调性达到30%(1.5 kV/mm)以上, 各掺杂比例的钛酸锶钡材料的介电损耗均在1%以下.
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| 关 键 词： | 钛酸锶钡 氟化钇 介电可调性 |
Influence of Doped YF_3 on the Dielectric Properties of Barium Strontium Titanate Ceramics |
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| Liu Shanshan,Zhao Yuzhen,Wang Xilin,Zhou Heping. Influence of Doped YF_3 on the Dielectric Properties of Barium Strontium Titanate Ceramics[J]. Rare Metal Materials and Engineering, 2009, 38(Z2) |
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| Authors: | Liu Shanshan Zhao Yuzhen Wang Xilin Zhou Heping |
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| Affiliation: | Liu Shanshan,Zhao Yuzhen,Wang Xilin,Zhou Heping (State Key Laboratory of New Ceramics , Fine Processing,Tsinghua University,Beijing 100084,China) |
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| Abstract: | Barium strontium titanate ceramics (Ba0.6Sr0.4TiO3,BST) ceramics with doped YF3 were prepared using the traditional ceramic process. The phase structure,microstructure and dielectric properties of BST ceramics were studied. The XRD patterns show the BSTO ceramics with doped YF3 belongs to perovskite phase. The results showed that YF3 additive can decrease the dielectric constant,decrease the crystallite size for BST ceramic and reduce the dielectric constant temperature changing rate. The dielectric constan... |
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| Keywords: | BSTO YF_3 tunability |
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