| 烧成气氛对Bi_(2.9)Pr_(0.9)Ti_3O_(12)陶瓷微观结构及电性能的影响 |
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| 引用本文： | 陆志娟,崔彩娥,黄平,康爱国.烧成气氛对Bi_(2.9)Pr_(0.9)Ti_3O_(12)陶瓷微观结构及电性能的影响[J].稀有金属材料与工程,2009,38(Z2). |
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| 作者姓名： | 陆志娟 崔彩娥 黄平 康爱国 |
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| 作者单位： | 太原理工大学,山西,太原,030024 |
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| 基金项目： | 山西省自然科学基金资助，山西省科技攻关项目资助 |
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| 摘 要： | 采用高温固相法,分别在空气、氧气和碳还原气氛中制备了Bi_2.9Pr_0.9Ti_3O_(12)材料.用X射线衍射仪、拉曼光谱仪分析样品物相结构,扫描电子显微镜表征微观形貌,阻抗分析仪和铁电性能测量仪测试电性能.结果表明:氧气气氛中样品晶粒尺寸相对较大,介电常数和剩余极化值较高;还原气氛中样品晶粒呈柱状,电性能差.氧气氛围可以促进晶粒生长,有助于改善Bi_2.9Pr_0.9Ti_3O_(12)材料的电性能.
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| 关 键 词： | 微观结构 拉曼频移 介电性能 损耗因子 |
Microstructures and Electrical Properties of Bi_(2.9)Pr_(0.9)Ti_3O_(12) Ceramics Annealed in Different Environments |
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| Lu Zhijuan,Cui Caie,Huang Ping,Kang Aiguo.Microstructures and Electrical Properties of Bi_(2.9)Pr_(0.9)Ti_3O_(12) Ceramics Annealed in Different Environments[J].Rare Metal Materials and Engineering,2009,38(Z2). |
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| Authors: | Lu Zhijuan Cui Caie Huang Ping Kang Aiguo |
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| Affiliation: | Lu Zhijuan,Cui Cai'e,Huang Ping,Kang Aiguo (Taiyuan University of Technology,Taiyuan 030024,China) |
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| Abstract: | Bi2.9Pr0.9Ti3O12 were prepared by solid state reaction and crystallized in air,oxygen and carbon environments,respectively. The scanning electron microscope micrographs showed well developed plate-like morphologies with larger grain size of the sample annealed under oxygen condition,which has a large remnant polarization and a high dielectric constant value. While the sample crystallized in carbon environment has cylindrical grain with bad electrical property. And the electrical properties were measured usi... |
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| Keywords: | Bi_2 9Pr_0 9Ti_3O_(12) Bi_2 9Pr_0 9Ti_3O_(12) microstructure Raman shift electrical properties dissipation factor |
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