| BNBMT无铅压电陶瓷的制备及性能研究 |
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| 引用本文： | 段星,黄焱球,刘甜甜. BNBMT无铅压电陶瓷的制备及性能研究[J]. 佛山陶瓷, 2009, 19(6): 1-4 |
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| 作者姓名： | 段星 黄焱球 刘甜甜 |
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| 作者单位： | 中国地质大学材料科学与化学工程学院,湖北,武汉,430074;中国地质大学材料科学与化学工程学院,湖北,武汉,430074;中国地质大学材料科学与化学工程学院,湖北,武汉,430074 |
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| 摘 要： | 本文采用新型溶胶-凝胶制粉技术和传统陶瓷生产工艺制备了0.93Bi0.5Na0.5TiO3-0.07Ba1-xMgxTiO3（简称BNBMT100x）体系无铅压电陶瓷,并对BNBMT陶瓷的晶相特征及其介电和压电性能进行了讨论。XRD分析表明,陶瓷样品均形成了单一的钙钛矿结构固溶体;Mg的加入对陶瓷的介电、压电性能有显著影响;陶瓷的铁电-顺电相变峰显著降低、展宽;介电损耗在室温至200℃范围内较平缓。当x=0.04时,机电耦合系数kp和kt最大,分别为16%和19%,压电常数d33值为111pC/N。
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| 关 键 词： | 无铅压电陶瓷 微观结构 介电性能 压电性能 |
Preparation and Properties of BNBMT Lead-free Piezoelectric Ceramics |
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| Duan Xing,Huang Yanqiu,Liu Tiantian. Preparation and Properties of BNBMT Lead-free Piezoelectric Ceramics[J]. Foshan Ceramics, 2009, 19(6): 1-4 |
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| Authors: | Duan Xing Huang Yanqiu Liu Tiantian |
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| Affiliation: | Faculty of Materials Science and Chemical Engineering;China University of Geosciences Wuhan Hubei 430074 |
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| Abstract: | 0.93Bi0.5Na0.5TiO3-0.07Ba1-xMgxTiO3(BNBMT100x for short)Lead-free piezoelectric ceramics were fabricated from the powders prepared by a novel sol-gel method. Piezoelectric properties, dielectric properties and crystal structure of the BNBMT ceramics were studied.The X-ray diffraction (XRD) analysis showed that all the ceramics formed single-phase solid solutions with perovskite structure. The dielectric and piezoelectric properties of the ceramics were affected obviously by the content of the Mg.The ferroel... |
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| Keywords: | Lead-free piezoelectric ceramics microstructure piezoelectric and dielectric properties |
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