(1-x)(K0.5Na0.5)NbO3-x (Sr0.4Ba0.6)0.7Bi0.2TiO3无铅铁电陶瓷介电性能研究

材料导报, 2014, 28(6): 116-123.

(1-x)(K0.5Na0.5)NbO3-x (Sr0.4Ba0.6)0.7Bi0.2TiO3无铅铁电陶瓷介电性能研究

姜丹 ^1, , 罗发 ^2, , 程花蕾 ^3, , 周万城 ^4, , 朱冬梅 ^5,

1.西北工业大学凝固技术国家重点实验室,西安710072

2.西北工业大学凝固技术国家重点实验室,西安710072

3.西北工业大学凝固技术国家重点实验室,西安710072

4.西北工业大学凝固技术国家重点实验室,西安710072

5.西北工业大学凝固技术国家重点实验室,西安710072

基金项目: 国家自然科学基金(51072165)

关键词：弛豫铁电陶瓷 , 铌酸钾钠 , 介电常数

Research on Dielectric Property of (1-x) (K0.5Na0.5)NbO3-x(Sr0.4Ba0.6)0.7Bi0.2TiO3Lead-free Ferroelectric Ceramics

JIANG Dan ^1, , LUO Fa ^2, , CHENG Hualei ^3, , ZHOU Wancheng ^4, , ZHU Dongmei ^5,

1.西北工业大学凝固技术国家重点实验室,西安710072

2.西北工业大学凝固技术国家重点实验室,西安710072

3.西北工业大学凝固技术国家重点实验室,西安710072

4.西北工业大学凝固技术国家重点实验室,西安710072

5.西北工业大学凝固技术国家重点实验室,西安710072

Keywords： relaxor ferroelectrics , potassium sodium niobate , dielectric constant

采用传统固相烧结法,在铌酸钾钠陶瓷基体中掺入Sr、Ba、Bi和Ti元素,制备了(1-x) (K0.5Na0.5)-NbO3-x(Sr0.4Ba0.6)0.7Bi0.2TiO3((1-x) KNN-xBSBT) (0.01≤x≤0.04)陶瓷.XRD测试结果表明,(1-x)KNN-xBSBT(0.01≤x≤0.04)为纯钙钛矿相;介电温谱表明,(1-x)KNN-xBSBT为弛豫铁电体;0.97KNN-0.03BSBT陶瓷介电常数具有很好的温度稳定性,在室温至400℃介电常数变化很小.

参考文献

[1]	李龙土 .弛豫铁电陶瓷研究进展[J].硅酸盐学报,1992,20(05):476.
[2]	Maeder M D;Damjanovic D;Setter N .Lead-free piezoelectric materials[J].Journal of Electroceramics,2004,13(1-3):385.
[3]	Saito Y;Takao H;Tani T et al.Lead-free piezoceramics[J].NATURE,2004,432(7013):84.
[4]	Hongliang Du;Daijun Liu .Microstructure, Piezoelectric, and Ferroelectric Properties of Bi_2O_3-Added (K_(0.5)Na_(0.5)NbO_3 Lead-Free Ceramics[J].Journal of the American Ceramic Society,2007(9):2824-2829.
[5]	Park S H;Ahn C W;Nahm S et al.Microstructure and piezoelectric properties of ZnO-added(Na0.5K0.5)NbO3 ceramics[J].JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS,2004,43(08):1072.
[6]	Jaeger R E;Egerton L .Hot pressing of potassium-sodium niobates[J].Journal of the American Ceramic Society,1962,45(05):209.
[7]	Wang R;Xie R;Sekiya T et al.Piezoelectric properties of spark-plasma-sintered(Na0.5 K0.5) NbO3-PbTiO3 ceramics[J].JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS,2002,41(11):7119.
[8]	Hongliang Du;Fa Luo;Shaobo Qu;Zhibin Pei;Dongmei Zhu;Wancheng Zhou .Phase structure, microstructure, and electrical properties of bismuth modified potassium-sodium niobium lead-free ceramics[J].Journal of Applied Physics,2007(5):054102-1-054102-5-0.
[9]	Hwi-Yeol Park;Cheol-Woo Ahn;Hyun-Cheol Song;Jong-Heun Lee;Sahn Nahm;Kenji Uchino;Hyeung-Gyu Lee;Hwack-Joo Lee .Microstructure and piezoelectric properties of 0.95(Na_(0.5)K_(0.5))NbO_(3)-0.05BaTiO_(3) ceramics[J].Applied physics letters,2006(6):062906-1-062906-3-0.
[10]	V. Bobnar;J. Bernard;M. Kosec .Relaxorlike dielectric properties and history-dependent effects in the lead-free K_(0.5)Na_(0.5)NbO_(3)-SrTiO_(3) ceramic system[J].Applied physics letters,2004(6):994-996.
[11]	Thomas R. Shrout;Shujun J. Zhang .Lead-free piezoelectric ceramics: Alternatives for PZT?[J].Journal of electroceramics,2007(1):111-124.
[12]	Song X P;Zhang Y G;Luo X J et al.Relaxor ferroelectricity of(1-x)(K0.5 Na0.5) NbO3-xSrTiO3 ceramics[J].Chinese Physical Society,2008,58(07):4980.
[13]	钟维烈.铁电物理学[M].北京:科学出版社,1996:341.

上一张下一张

计量

下载量()
访问量()

作者相关

文章评分

您的评分：
1

0%
2

0%
3

0%
4

0%
5

0%

材料期刊网