| Na补偿的(Na,Bi)TiO3-Ba (Zr,Ti)O3无铅压电陶瓷 |
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| 引用本文： | 杜鹃,王矜奉,赵明磊,明保全,盖志刚,郑立梅,徐庆.Na补偿的(Na,Bi)TiO3-Ba (Zr,Ti)O3无铅压电陶瓷[J].压电与声光,2006,28(4):431-433. |
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| 作者姓名： | 杜鹃 王矜奉 赵明磊 明保全 盖志刚 郑立梅 徐庆 |
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| 作者单位： | 1. 山东大学,物理与微电子学院,晶体材料国家重点实验室,山东,济南,250100
2. 武汉理工大学,材料学院,湖北,武汉,430070 |
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| 基金项目： | 国家自然科学基金资助项目(50572056)，山东省重点自然科学基金资助项目(Z2003F04) |
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| 摘 要： | 研究了(1-y)(Na0.5Bi0.5)TiO3-yBa(ZrxTi1-x)O3无铅压电陶瓷,获得压电应变常数d33高达185 pC/N的0.94(Na0.5Bi0.5)TiO3-0.06Ba(Zr0.055Ti0.945)O3压电陶瓷。添加0.04%摩尔过量Na2CO3的0.94(Na0.5Bi0.5)TiO3-0.06Ba(Zr0.055Ti0.945)O3高性能压电陶瓷d33高达195 pC/N。研究发现添加Na2CO3添加量至0.04%摩尔,Na起到软性添加物的作用,添加量超过0.04%,Na起到硬性添加物的作用.理论解释了过量Na的这一特性.为了降低介电损耗,对0.94(Na0.5Bi0.5)TiO3-0.06 Ba(Zr0.055Ti0.945)O3陶瓷进行了(Ce,Mn)掺杂改性研究。
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| 关 键 词： | 无铅压电陶瓷 介电常数 介电损耗 相变 |
| 文章编号： | 1004-2474(2006)04-0431-03 |
| 收稿时间： | 2005-07-27 |
| 修稿时间： | 2005年7月27日 |
Lead-free Ceramics (Na,Bi)TiO3-Ba(Zr,Ti)O3 Compensated with Na |
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| DU Juan,WANG Jin-feng,ZhAO Ming-lei,MING Bao-quan,GAI Zhi-gang,ZhENG Li-mei,XU Qing.Lead-free Ceramics (Na,Bi)TiO3-Ba(Zr,Ti)O3 Compensated with Na[J].Piezoelectrics & Acoustooptics,2006,28(4):431-433. |
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| Authors: | DU Juan WANG Jin-feng ZhAO Ming-lei MING Bao-quan GAI Zhi-gang ZhENG Li-mei XU Qing |
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| Affiliation: | 1. School of Physics and Microelectronics, State Key Lab. of Materials, Shandong University, Jinan 250100, China; 2. Materials School, Wuhan University of Technology, Wuhan 430070, China |
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| Abstract: | Lead-free piezoelectric ceramics(1-y)(Na_(0.5)Bi_(0.5)) TiO_3-yBa(Zr_xTi_(1-x))O_3 were systematically investigated.Two compositions with high piezoelectric performances were obtained:one was 0.94(Na_(0.5)Bi_(0.5))TiO_3-0.06Ba(Zr_(0.055)Ti_(0.945))O_3 having a piezoelectric strain constant d_(33) as high as 185 pC/N;the other was the 0.94(Na_(0.5)Bi_(0.5))TiO_3-0.06Ba(Zr_(0.055)Ti_(0.945))O_3 doped with extra 0.04% Na_2CO_3,having a d_(33) as high as 195 pC/N.It was found that the extra Na in the range up to 0.04% played the soft additive role,but in the range over 0.04%,it played the hard additive role.Why the extra Na had such characteristic was theoretically explained.In order to reduce the dielectric loss,the effect of(Ce,Mn) dopants on the properties of 0.94(Na_(0.5)Bi_(0.5))TiO_3-0.06Ba(Zr_(0.055)Ti_(0.945))O_3 doped with extra 0.04% Na_2CO_3 was studied. |
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| Keywords: | lead-free piezoelectric ceramics dielectric constants dielectric loss phase transition |
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