| LiCe掺杂对铋层材料K0．5Bi2．5Nb2O9的影响 |
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| 引用本文： | 盖志刚,王矜奉,苏文斌,赵明磊,王春明,杜鹃,郑立梅,王春雷,张家良,李吉超.LiCe掺杂对铋层材料K0．5Bi2．5Nb2O9的影响[J].压电与声光,2008,30(4). |
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| 作者姓名： | 盖志刚 王矜奉 苏文斌 赵明磊 王春明 杜鹃 郑立梅 王春雷 张家良 李吉超 |
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| 作者单位： | 山东大学,物理学院,晶体材料国家重点实验室,山东,济南,250100 |
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| 基金项目： | 国家自然科学基金
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高等学校博士学科点专项科研项目 |
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| 摘 要： | 用传统固相烧结法获得了含A位空位的(KBi)0.5-x(LiCe)x/2 x/2Bi2Nb2O9(其中为A位KBi]空位)系列铋层陶瓷,研究了A位LiCe掺杂替代对K0.5Bi2.5Nb2O9系列陶瓷性能的影响。LiCe掺杂改性明显提高了K0.5Bi2.5Nb2O9系列陶瓷的压电活性,(KBi)0.44(LiCe)0.03 0.03Bi2Nb2O9陶瓷的压电系数d33、平面机电耦合系数kp和厚度振动机电耦合系数kt分别为31 pC/N、5%和22%。
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| 关 键 词： | 铋层结构铁电体 平面机电耦合系数 厚度振动机电耦合系数 压电系数 |
The Effect of (Li,Ce) Doping in Aurivillius Phase Material K0.5Bi2.5Nb2O9 |
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| GAI Zhi-gang,WANG Jin-feng,SU Wen-bin,ZHAO Ming-lei,WANG Chun-ming,DU Juan,ZHENG Li-mei,WANG Chun-lei,ZHANG Jia-liang,LI Ji-chao.The Effect of (Li,Ce) Doping in Aurivillius Phase Material K0.5Bi2.5Nb2O9[J].Piezoelectrics & Acoustooptics,2008,30(4). |
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| Authors: | GAI Zhi-gang WANG Jin-feng SU Wen-bin ZHAO Ming-lei WANG Chun-ming DU Juan ZHENG Li-mei WANG Chun-lei ZHANG Jia-liang LI Ji-chao |
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| Abstract: | BLSF ceramic samples of(KBi)0.5-x(LiCe)x/2x/2Bi2Nb2O9(where represents A-site vacancies) were prepared using a conventional solid state processing.The effect of LiCe substitution for A-site on the properties of K0.5Bi2.5Nb2O9(KBN)-based ceramics was investigated.The piezoelectric activity of K0.5Bi2.5Nb2O9-based ceramics was significantly improved by the modification of lithium and cerium.The piezoelectric coefficient d33,planar electromechanical coupling coefficient kp and thickness electromecanical coupling coefficient kt of(KBi)0.44(LiCe)0.030.03Bi2Nb2O9 ceramic were found to be 31 pC/N,5% and 22%. |
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| Keywords: | bismuth layer-structured ferroelectrics planar electromechanical coupling coefficient thickness electromechanical coupling coefficient piezoelectric coefficient |
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