| (Na0.5Bi0.5)TiO3基无铅压电陶瓷研究进展 |
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| 引用本文： | 侯育冬,崔斌,高峰,杨祖培,田长生.(Na0.5Bi0.5)TiO3基无铅压电陶瓷研究进展[J].材料导报,2002,16(4):41-43. |
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| 作者姓名： | 侯育冬 崔斌 高峰 杨祖培 田长生 |
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| 作者单位： | 1. 西北工业大学材料科学与工程学院,西安,710072
2. 广东风华高新科技集团公司,肇庆,526020 |
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| 基金项目： | 陕西省自然科学基金，2000C03， |
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| 摘 要： | 综述了（Na0.5Bi0.5)Tio3（简写为NBT）基无铅压电陶瓷的发展现状，特性及影响因素，用分子轨道理论解释了NBT强铁电性的成因，对研究较多的三个体系：NBT-ATiO3(A=Ca,Sr,Ba),NBT-BNbO3(B=Na,K)和NBT－Ln掺杂体系给予了概括介绍，内容包括成分配比，性能和应用，并提出了NBT基无铅压电陶瓷的设计原则。
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| 关 键 词： | （Na0.5Bi0.5）TiO3基 无铅压电陶瓷 研究进展 钛酸铋钠 铁电性 分子轨道 材料设计 |
Development of (Na0.5Bi0.5)TiO3 Based Lead Free Piezoelectric Ceramics |
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| HOU Yudong CUI Bin GAO Feng YANG Zupei TIAN Changsheng.Development of (Na0.5Bi0.5)TiO3 Based Lead Free Piezoelectric Ceramics[J].Materials Review,2002,16(4):41-43. |
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| Authors: | HOU Yudong CUI Bin GAO Feng YANG Zupei TIAN Changsheng |
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| Abstract: | The recent progresses,properties of (Na0.5Bi0.5)TiO3(NBT)based lead free piezoelectric ceramic
systems and factors influencing them are reviewed in this paper.The reasons for strong ferroelectric it of NBT are explained with molecular orbital theory.Three materialsystems which are widely investigated at present are generally outlined.The systems are NBT-ATiO3 (A = Ca,Sr,Ba),NBT-BNbO3 (B = Na,K) and NBT-Ln doping system.The composition,properties and applications of these systems are summerized,and the principle of design of NBT based lead free piezoelectric ceramics is also proposed. |
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| Keywords: | lead free piezoelectric ceramics bismuth sodium titanate ferroelectrics molecular orbital |
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