采用固相法制备了(Ba0.85 Ca0.15)(Ti1-xZrx)O3 (BCTZ)无铅压电陶瓷,研究Zr含量(x=0～0.15)对BCTZ陶瓷微观结构和电性能的影响.结果表明:所有样品均具有纯的钙钛矿结构；随Zr含量的增加,室温下样品逐渐由四方相向三方相转变,在0.05 ＜x＜0.1范围内两相共存；样品的压电常数d33、平面机电耦合系数kp、剩余极化强度Pr和相对介电常数εr均随Zr含量的增加呈现先增加后减小的趋势,而矫顽场Ec则逐渐降低.样品的综合性能在x=0.08处达到最佳值:d33 =461 pC/N,kp=50.7％,Pr=14.1μC/cm2,Ec=4.1 kV/cm,εr=3696,表明该材料具有良好的应用前景.
参考文献
| [1] | Deng X Y;Wang X H;Gui Z L et al.Grain-size Effects on the Hardness of Nanograin BaTiO3 Ceramics[J].Journal of Electroceramics,2008,21(1-4):238-241. |
| [2] | Wang X H;Deng X Y;Zhou H et al.Bulk Dense Nanocrystalline BaTiO3 Ceramics Prepared by Novel Pressureless Two-step Sintering Method[J].Journal of Electroceramics,2008,21(1-4):230-233. |
| [3] | 谢翔,黄自恒,孔勇发,张玲,刘士国,陈绍林,李晓春,赵迪,肖罗生,许京军.钛酸钡钙晶体的生长及其光学性能研究[J].人工晶体学报,2005(02):242-245. |
| [4] | Li, W.;Xu, Z.;Chu, R.;Fu, P.;Zang, G. .Polymorphic phase transition and piezoelectric properties of (Ba _(1-x)Ca_x)(Ti_(0.9)Zr_(0.1))O_3 lead-free ceramics[J].Physica, B. Condensed Matter,2010(21):4513-4516. |
| [5] | Li W;Xu Z J;Chu R Q et al.Dielectric and Piezoelectric Properties of Ba(ZrxTi1-x)O3 Lead-free Ceramics[J].Brazilian Journal of Physics,2010,40:353-356. |
| [6] | Dobal PS.;Katiyar RS.;Yu Z.;Guo R.;Bhalla AS.;Dixit A. .Micro-Raman scattering and dielectric investigations of phase transition behavior in the BaTiO3-BaZrO3 system[J].Journal of Applied Physics,2001(12):8085-8091. |
| [7] | X.G. Tang;K.-H. Chew;H.L.W. Chan .Diffuse phase transition and dielectric tunability of Ba(Zr_yTi_(1-y)O_3 relaxor ferroelectric ceramics[J].Acta materialia,2004(17):5177-5183. |
| [8] | Aoujgal, A.;Ahamdane, H.;Gra?a, M.P.F.;Costa, L.C.;Tachafine, A.;Carru, J.C.;Outzourhit, A. .Structural and relaxor behavior of Ba[Zr_xTi_(1-x-y)] (Zn_(1/3)Nb_(2/3))_yO_3 ceramics obtained by a solid-state reaction[J].Solid State Communications,2010(27/28):1245-1248. |
| [9] | Large Piezoelectric Effect in Pb-Free Ceramics[J].Physical review letters,2009(25):257602.1. |
| [10] | Wei Li;Zhijun Xu;Ruiqing Chu;Peng Fu;Guozhong Zang .High piezoelectric d_(33) coefficient in (Ba_(1-x)Ca_x)(Ti_(0.98)Zr_(0.02))O_3 lead-free ceramics with relative high Curie temperature[J].Materials Letters,2010(21):2325-2327. |
| [11] | Li, W;Xu, ZJ;Chu, RQ;Fu, P;Zang, GZ .Piezoelectric and Dielectric Properties of (Ba_(1-x)Cax)(Ti_(0.95)Zr_(0.05))O_3 Lead-Free Ceramics[J].Journal of the American Ceramic Society,2010(10):2942-2944. |
| [12] | Su S;Zuo R Z;Lu S B et al.Poling Dependence and Stability of Piezoelectric Properties of Ba(Zr0.2Ti0 8)O3-(Ba0 7Ca0 3)TiO3 Ceramics with Huge Piezoelectric Coefficients[J].Current Applied Physics,2011,11(03):120-123. |
| [13] | 崔业让,刘心宇,袁昌来,胡耀斌,马家峰,李文华.Fe2O3掺杂（Ba0.7Ca0.3）TiO3-Ba（Zr0.2Ti0.8）O3无铅压电陶瓷的制备与性能[J].人工晶体学报,2012(02):425-429. |
| [14] | Kumar M;Garg A;Kumar R;Bhatnagar MC .Structural, dielectric and ferroelectric study of Ba0.9Sr0.1ZrxTi1-xO3 ceramics prepared by the sol-gel method[J].Physica, B. Condensed Matter,2008(10/11):1819-1823. |
| [15] | Cristina Ciomaga;Massimo Viviani;Maria Teresa Buscaglia .Preparation and characterisation of the Ba(Zr,Ti)O_3 ceramics with relaxor properties[J].Journal of the European Ceramic Society,2007(13/15):4061-4064. |
| [16] | T BADAPANDA;S K ROUT;S PANIGRAHI .Relaxor behaviour of (Ba_0.5Sr_0.5)(Ti_0.6Zr_0.4)O_3 ceramics[J].Bulletin of Materials Science,2008(6):897-901. |
| [17] | Xiong J W;Zeng B;Cao W Q .Investigation of Dielectric and Relaxor Ferroelectric Properties in Ba (ZrxTi1-x) O3 Ceramics[J].Journal of Electroceramics,2008,21(1-4):124-127. |
| [18] | Uchino K;Nomura S .Critical Exponents of the Dielectric Constants in Diffused-phase-transition Crystals[J].Ferroelectrics,1982,44(01):55-61. |
| [19] | 丁南,唐新桂,匡淑娟,伍君博,刘秋香,何琴玉.锰掺杂对Ba（Zr,Ti）O3陶瓷压电与介电性能的影响[J].物理学报,2010(09):6613-6619. |
| [20] | J. L. Zhang;X. J. Zong;L. Wu;Y. Gao;P. Zheng;S. F. Shao .Polymorphic phase transition and excellent piezoelectric performance of (K_(0.55)Na_(0.45))_(0.965)Li_(0.035)Nb_(0.80)Ta_(0.20)O_(3) lead-free ceramics[J].Applied Physics Letters,2009(2):022909-1--022909-3-0. |
| [21] | Dragan Damjanovic .Contributions to the Piezoelectric Effect in Ferroelectric Single Crystals and Ceramics[J].Journal of the American Ceramic Society,2005(10):2663-2676. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%