Sb掺杂对0.96(K0.49Na0.51)(Nb0.97-xTa0.03Sbx)O3-0.04Bi0.5(Na0.8K0.2)0.5ZrO3无铅压电陶瓷结构与电性能的影响研究

人工晶体学报, 2016, 45(1): 47-52.

Sb掺杂对0.96(K0.49Na0.51)(Nb0.97-xTa0.03Sbx)O3-0.04Bi0.5(Na0.8K0.2)0.5ZrO3无铅压电陶瓷结构与电性能的影响研究

沈万程 ^1, , 沈宗洋 ^2, , 李月明 ^3, , 王竹梅 ^4, , 骆雯琴 ^5, , 宋福生 ^6, , 谢志翔 ^7,

1.景德镇陶瓷学院材料科学与工程学院,江西省先进陶瓷材料重点实验室,景德镇333403

2.景德镇陶瓷学院材料科学与工程学院,江西省先进陶瓷材料重点实验室,景德镇333403

3.景德镇陶瓷学院材料科学与工程学院,江西省先进陶瓷材料重点实验室,景德镇333403

4.景德镇陶瓷学院材料科学与工程学院,江西省先进陶瓷材料重点实验室,景德镇333403

5.景德镇陶瓷学院材料科学与工程学院,江西省先进陶瓷材料重点实验室,景德镇333403

6.景德镇陶瓷学院材料科学与工程学院,江西省先进陶瓷材料重点实验室,景德镇333403

7.景德镇陶瓷学院材料科学与工程学院,江西省先进陶瓷材料重点实验室,景德镇333403

基金项目: 江西省青年科学家“井冈之星”培养对象计划项目(20142BCB23020) 江西省高等学校科技落地计划项目(KJLD13076) 国家自然科学基金(51262011) 江西省科技支撑计划项目(20132BBE50014) 江西省研究生创新基金(YC2014-S302)

关键词：无铅压电陶瓷 , 铌酸钾钠 , 锆酸铋钠钾 , 多型相转变

Effect of Sb Doping on the Structure and Electrical Properties of 0.96(K0.49Na0.51)(Nb0.97-xTa0.03Sbx)O3-0.04Bi0.5(Na0.8K0.2)0.5ZrO3 Lead-free Piezoelectric Ceramics

Keywords： lead-free piezoelectric ceramic , potassium sodium niobate , bismuth potassium sodium zirconate , polymorphic phase transition

采用固相法制备了0.96(K0.49 Na0.51)(Nb0.97-xTa0.03Sbx) O3-0.04Bi0.5(Na0.8K0.2)0.5ZrO3(0.96KNNTSx-0.04BNKZ,x=0,0.01,0.02,0.03,0.04)无铅压电陶瓷,研究了Sb掺杂量对0.96KNNTSx-0.04BNKZ陶瓷相结构、微观结构和电性能的影响规律.X射线衍射(X-ray Diffraction,XRD)分析结果表明:0.96KNNTSx-0.04BNKZ陶瓷具有纯钙钛矿结构,随着Sb掺杂量x的增加,陶瓷由正交-四方两相共存逐渐转变为四方相,在x≤0.01时,陶瓷为正交-四方两相共存的多型相转变(Polymorphic Phase Transition,PPT)结构,而当x≥0.02时,陶瓷则转变为四方相结构.在PPT向四方相转变的组成边界x=0.02处,陶瓷具有优异的电性能:压电常数d33=345 pC/N,机电耦合系数kp=39.2％,机械品质因数Qm=51,介电常数ε33T/ε0=1520,介电损耗tanδ =2.7％,剩余极化强度Pr=15.4 μC/cm2,矫顽场Ec =1.09kV/mm,居里温度Tc=275℃.

参考文献

[1]	Yasuyoshi Saito;Hisaaki Takao.High Performance Lead-Free Piezoelectric Ceramics in the (K,Na)NbO_3-LiTaO_3 Solid Solution System[J].Ferroelectrics: Letters Section,20061(1):17-32.
[2]	Xiao, DQ;Wu, JG;Wu, L;Zhu, JG;Yu, P;Lin, DM;Liao, YW;Sun, Y.Investigation on the composition design and properties study of perovskite lead-free piezoelectric ceramics[J].Journal of Materials Science,200919(19):5408-5419.
[3]	Y.M. LI;Z.Y. SHEN;L. JIANG;R.H. LIAO;Z.M. WANG;Y. HONG.Microstructure, Phase Transition, and Electrical Properties of K_(x)Na_(1-x)NbO_(3) Lead-Free Piezoceramics[J].Journal of Electronic Materials,20123(3):546-551.
[4]	Dunmin Lin;Kin Wing Kwok.Structure and piezoelectric properties of K_(0.5)Na_(0.5)NbO_(3)-Bi_(0.5)Li_(0.5)TiO_(3) lead-free ceramics[J].Journal of Materials Science. Materials in Electronics,20122(2):501-505.
[5]	Yue-Ming Li;Zong-Yang Shen;Liang Jiang;Fen Wu;Zhu-Mei Wang;Yan Hong;Run-Hua Liao.Microstructure, phase transition and electrical properties of LiSbO_(3)-doped (K_(0.49)Na_(0.51))NbO_(3) lead-free piezoelectric ceramics[J].Journal of Materials Science. Materials in Electronics,20119(9):1409-1414.
[6]	Shaohua Qian;Kongjun Zhu;Xuming Pang.Phase transition, microstructure, and dielectric properties of Li/Ta/Sb co-doped (K, Na)NbO_3 lead-free ceramics[J].CERAMICS INTERNATIONAL,20143(3):4389-4394.
[7]	吴芬;李月明;沈宗洋;王竹梅;洪燕;肖祖贵.NKLNx-KBT-BZ无铅压电陶瓷的电性能研究[J].人工晶体学报,2013(3):432-436.
[8]	Zhuo Wang;Dingquan Xiao;Jiagang Wu.New Lead-Free (1-x)(K_(0.5)Na_(0.5))NbO_(3-x)(Bi_(0.5)Na_(0.5))ZrO_3 Ceramics with High Piezoelectricity[J].Journal of the American Ceramic Society,20143(3):688-690.
[9]	沈万程;沈宗洋;李月明;王竹梅;刘华军.（1-x）（K0.49Na0.51）（Nb0.97Ta0.03）O3-xBi0.5Na0.5ZrO3无铅压电陶瓷的结构与电性能研究[J].人工晶体学报,2015(10):2793-2797,2803.
[10]	Xiaopeng Wang;Jiagang Wu;Dingquan Xiao.Large d_(33) in (K,Na)(Nb,Ta,Sb)O3-(Bi,Na,K)ZrO3 lead-free ceramics[J].Journal of Materials Chemistry, A. Materials for energy and sustainability,201412(12):4122-4126.
[11]	Zong-Yang Shen;Yue-Ming Li;Liang Jiang;Run-Run Li;Zhu-Mei Wang;Yan Hong;Run-Hua Liao.Phase transition and electrical properties of LiNbO_(3)-modified K_(0.49)Na_(0.51)NbO_(3) lead-free piezoceramics[J].Journal of Materials Science. Materials in Electronics,20118(8):1071-1075.

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