| (Na,K)NbO_3基无铅压电陶瓷的研究进展 |
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| 引用本文： | 沈宗洋,李敬锋. (Na,K)NbO_3基无铅压电陶瓷的研究进展[J]. 硅酸盐学报, 2010, 0(3) |
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| 作者姓名： | 沈宗洋 李敬锋 |
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| 作者单位： | 清华大学材料科学与工程系;新型陶瓷与精细工艺国家重点实验室; |
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| 基金项目： | 国家自然科学基金(50772050;50921061);;国家“973”重点基础研究发展(2009CB623304)资助项目 |
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| 摘 要： | 本文主要综述近几年来国内外有关(Na,K)NbO3基无铅压电陶瓷体系的加压固相烧结技术、液相助烧致密化技术、掺杂改性、相结构调控以及相关机理研究方面的研究进展和动向,并展望该陶瓷体系在医疗超声换能器技术方面的应用前景。
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| 关 键 词： | 无铅压电陶瓷 铌酸钠钾 钙钛矿 铁电体 容差因子 综合评述 |
ADVANCES IN RESEARCHES ON (Na,K)NbO_3-BASED LEAD-FREE PIEZOELECTRIC CERAMICS |
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| SHEN Zongyang,LI Jingfeng. ADVANCES IN RESEARCHES ON (Na,K)NbO_3-BASED LEAD-FREE PIEZOELECTRIC CERAMICS[J]. Journal of The Chinese Ceramic Society, 2010, 0(3) |
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| Authors: | SHEN Zongyang LI Jingfeng |
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| Affiliation: | State Key Laboratory of New Ceramics and Fine Processing;Department of Materials and Engineering;Tsinghua University;Beijing 100084;China |
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| Abstract: | This paper mainly reviews recent advances in development of(Na,K)NbO3-based lead-free piezoceramic system,including the pressurized solid-state sintering process,liquid-phase-assisted sintering process,chemical composition modification,phase structure controlling,and related mechanism studies.In addition,the application perspectives on(Na,K)NbO3-based lead-free piezoceramics for medical ultrasonic transducers are also introduced. |
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| Keywords: | lead-free piezoelectric ceramics potassium and sodium niobate perovskite ferroelectrics tolerance factor review |
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