| 熔盐法合成钛酸铋钾陶瓷粉体 |
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| 引用本文： | 杨建锋,侯育冬,贾琳,朱满康,严辉. 熔盐法合成钛酸铋钾陶瓷粉体[J]. 电子元件与材料, 2007, 26(11): 26-28 |
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| 作者姓名： | 杨建锋 侯育冬 贾琳 朱满康 严辉 |
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| 作者单位： | 北京工业大学,材料科学与工程学院,北京,100022;北京工业大学,材料科学与工程学院,北京,100022;北京工业大学,材料科学与工程学院,北京,100022;北京工业大学,材料科学与工程学院,北京,100022;北京工业大学,材料科学与工程学院,北京,100022 |
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| 基金项目： | 国家自然科学基金 , 北京市自然科学基金 |
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| 摘 要： | 以K2CO3,Bi2O3和TiO2为反应物,KCl为熔盐,通过熔盐法在600℃成功合成纯钙钛矿结构K0.5Bi0.5TiO3(KBT)无铅陶瓷粉体。探寻了制备过程中影响粉体颗粒大小和形貌的工艺参数,并对影响机理进行了探讨。结果表明,与传统固相法相比,熔盐法合成温度显著降低且颗粒平均粒径明显减小。固相法合成的粉体平均粒径为115nm,KCl含量5%和20%的熔盐法合成粉体平均粒径为78nm和67nm。此外,实验发现随着熔盐量的增加,易合成各向异性的棒状粉体。
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| 关 键 词： | 无机非金属材料 无铅压电陶瓷 K0.5Bi0.5TiO3 熔盐法 |
| 文章编号： | 1001-2028（2007）11-0026-03 |
| 修稿时间： | 2007-08-13 |
Synthesis of K0.5Bi0.5TiO3 powders by molten salt method |
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| YANG Jian-feng,HOU Yu-dong,JIA Lin,ZHU Man-kang,YAN Hui. Synthesis of K0.5Bi0.5TiO3 powders by molten salt method[J]. Electronic Components & Materials, 2007, 26(11): 26-28 |
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| Authors: | YANG Jian-feng HOU Yu-dong JIA Lin ZHU Man-kang YAN Hui |
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| Affiliation: | School of Materials Science and Engineering, Beijing University of Technology, Beijing 100022, China |
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| Abstract: | The pure perovskite K0.5Bi0.5TiO3 (KBT) powders were prepared by a molten salt synthesis method(MSS) at 600 ℃,with raw materials of K2CO3, Bi2O3 and TiO2 in KCl flux salts. The process parameters, which influenced the sizes and morphology of powders, were studied and the reaction mechanism was discussed in detail. The results show that compared with the normal solid state reactions, the synthesis temperature and mean particle sizes of the pure KBT powders by MSS method are decreased greatly. The mean particle sizes are 78 nm and 67 nm by MSS with 5% and 20% KCl, respectively, compared to that of 115 nm by solid-solid method. In addition, it is also found that increasing the amount of salt enhanced the anisotropy of grains. |
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| Keywords: | non-metallic inorganic material lead-free piezoelectric ceramic K0.5Bi0.5TiO3 molten salt synthesis |
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