| 水热法制备K0.5Bi0.5TiO3陶瓷粉体及其介电性能研究 |
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| 引用本文： | 江向平,林玫,涂娜,陈超,李小红,李月明.水热法制备K0.5Bi0.5TiO3陶瓷粉体及其介电性能研究[J].压电与声光,2011,33(2). |
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| 作者姓名： | 江向平 林玫 涂娜 陈超 李小红 李月明 |
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| 作者单位： | 景德镇陶瓷学院材料工程系,江西景德镇,333001 |
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| 基金项目： | 国家自然科学基金，教育部新世纪优秀才支持计划基金，江西省自然科学基金，江西省对外科合作资助项目，江西省高等学校"先进陶瓷材料"科技创新团队基金 |
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| 摘 要： | 采用水热法合成了K0.5Bi0.5TiO3(KBT)无铅压电陶瓷粉体.运用X线衍射(XRD)分析了KOH浓度及反应时间对产物物相的影响;利用扫描电镜(SEM)和透射电镜(TEM)观察研究了粉体的形貌.结果表明,增大碱浓度(4～12 mol/L)和延长反应时间都有利于KBT纳米粉体的合成.在220℃,KOH的起始浓度12 mol/L水热合成48 h的纯KBT相呈立方形结构,晶型规整,晶粒尺寸约为100nm.由水热法制备的粉体在1060℃烧结,获得介电损耗为0.05的致密压电陶瓷材料.
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| 关 键 词： | 水热法 K0.5Bi0.5TiO3 纳米粉体 |
Hydrothermal Synthesis of K0.5Bi0.5TiO3 Nanometer Powders and Studies on Dielectric Properties |
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| JIANG Xiangping,LIN Mei,TU Na,CHEN Chao,LI Xiaohong,LI Yueming.Hydrothermal Synthesis of K0.5Bi0.5TiO3 Nanometer Powders and Studies on Dielectric Properties[J].Piezoelectrics & Acoustooptics,2011,33(2). |
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| Authors: | JIANG Xiangping LIN Mei TU Na CHEN Chao LI Xiaohong LI Yueming |
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| Affiliation: | JIANG Xiangping,LIN Mei,TU Na,CHEN Chao,LI Xiaohong,LI Yueming(Dept.of Material Science and Engineering,Jingdezhen Ceramic Institute,Jingdezhen 333001,China) |
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| Abstract: | K0.5Bi0.5TiO3(KBT) nano-powders were fabricated by a hydrothermal method.The as-prepared KBT powders were characterized by X-ray powder diffraction(XRD),infrared(IR) spectroscopy,scanning electron microscope(SEM),and transmission electron microscope(TEM).The effects of KOH concentration and reaction time were investigated.The results showed that increasing KOH concentration(4~12 mol/L) or extending reaction time would in favor of the formation KBT nanometer powders.Under the reaction condition with temperat... |
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| Keywords: | hydrothermal method K0 5Bi0 5TiO3 nanometer powders |
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