| Na0.4725K0.4725＋xLi0.055Nb1＋xO3无铅压电陶瓷制备及性能研究 |
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| 引用本文： | 王怀平,邓一兰,陈小明,毛丽君,廖运文.Na0.4725K0.4725＋xLi0.055Nb1＋xO3无铅压电陶瓷制备及性能研究[J].西华师范大学学报(哲学社会科学版),2009(3):287-291. |
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| 作者姓名： | 王怀平 邓一兰 陈小明 毛丽君 廖运文 |
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| 作者单位： | 西华师范大学化学化工学院; |
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| 基金项目： | 四川省教育厅重点项目(2006A075);;西华师范大学博士启动基金(06B059) |
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| 摘 要： | 采用传统固相反应制备了Na0.4725K0.4725＋xLi0.055Nb1＋xO3无铅压电陶瓷，研究了KNbO3对Na0.4725K0.4725＋xLi0.055Nb1＋xO3材料晶体结构和压电性能的影响．XRD图谱表明，随着KNbO3含量的增加，在0．08〈x〈0．12处为材料的正交相和四方相共存的准同型相界．组成为Na0.4725K0.5725Li0.055Nb1.1O3的陶瓷具有优异的电学性能，d33达178pC／N，kp达0．288，εr为642，Qm为41．
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| 关 键 词： | 无铅压电陶瓷 晶体结构 压电性能 |
A Study on the Preparation and Properties of Lead-free Na_(0.4725)K_(0.4725+x)Li_(0.055)Nb_(1+x)O_3 Piezoelectric Ceramics |
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| WANG Huai-ping,DENG Yi-lan,CHEN Xiao-ming,MAO li-jun,LIAO Yun-wen.A Study on the Preparation and Properties of Lead-free Na_(0.4725)K_(0.4725+x)Li_(0.055)Nb_(1+x)O_3 Piezoelectric Ceramics[J].Journal of China West Normal University:Natural Science Edition,2009(3):287-291. |
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| Authors: | WANG Huai-ping DENG Yi-lan CHEN Xiao-ming MAO li-jun LIAO Yun-wen |
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| Institution: | College of Chemistry and Engineering;China West Normal University;Nanchong 637009;China |
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| Abstract: | Na0.4725K0.4725+xLi0.055Nb1+xO3 Lead-free piezoelectric ceramics have been synthesized by the conventional ceramic fabrication technique.The effects of KNbO3 addition on crystal structure and piezoelectric properties were investigated.XRD diffraction patterns reveal that the composition of 0.04< x < 0.10 corresponds to morphotropic phase boundary(MPB) between orthorhombic and tetragonal phase.The samples with composition Na0.4725K0.5725Li0.055Nb1.1O3 exhibit optimum electrical properties: piezoelectric cons... |
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| Keywords: | lead-free ceramics microstructure piezoelectric properties |
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