采用固相合成法制备了高温钙钛矿结构0.7Bi(Fe1-xAlx)O3-0.3BaTiO3 +0.3％ MnO2(BFAx-BT)无铅压电陶瓷.研究了BiAlO3改性对该体系陶瓷显微组织、电性能及温度稳定性的影响.结果表明:随BiAlO3含量的增加,陶瓷晶粒尺寸先增加后减小,压电性能的变化规律与晶粒尺寸变化一致,在x=0.01时,压电性能达到最大值d33=134 pC/N,kp=0.28.陶瓷弥散相变特征随BiAlO3含量的增加更加明显,适量BiAlO3添加显著增加了介电性能与压电性能的温度稳定性,特别是kp随温度增加在退极化温度前基本保持不变.
参考文献
| [1] | 侯育冬,崔磊,王赛,王超,朱满康,严辉.BiAlO_3基高温无铅压电陶瓷的研究进展[J].无机材料学报,2010(03):225-229. |
| [2] | 杨华斌,单旭,周昌荣,成钧,陈国华,李伟洲.多离子复合铁电体Bi（Zn1/2Ti1/2）O3改性BNT陶瓷的微结构与电性能[J].人工晶体学报,2011(05):1157-1161. |
| [3] | Verma, K.C.;Kotnala, R.K. .Multiferroic magnetoelectric coupling and relaxor ferroelectric behavior in 0.7BiFeO_3-0.3BaTiO_3 nanocrystals[J].Solid State Communications,2011(13):920-923. |
| [4] | Serhiy O. Leontsev;Richard E. Eitel .Dielectric and Piezoelectric Properties in Mn-Modified (1-x)BiFeO_3-xBaTiO_3 Ceramics[J].Journal of the American Ceramic Society,2009(12):2957-2961. |
| [5] | 范修军,王越.MnO2掺杂对Sr1.95Ca0.05NaNb5O15无铅压电陶瓷微观结构及电学性能的影响[J].人工晶体学报,2011(03):639-644,656. |
| [6] | Pio Baettig;Charles F.Schelle;Richard LeSar;Umesh V.Waghmare;Nicola A.Spaldin .Theoretical Prediction of New High-Performance Lead-Free Piezoelectrics[J].Chemistry of Materials,2005(6):1376-1380. |
| [7] | Mangalam, RVK;Bhat, SV;Iyo, A;Tanaka, Y;Sundaresan, A;Rao, CNR .Dielectric properties, thermal decomposition and related aspects of BiAlO3[J].Solid State Communications,2008(11/12):435-437. |
| [8] | Feng Xia;Xi Yao .Postsintering annealing induced extrinsic dielectric and piezoelectric responses in lead-zinc-niobate-based ferroelectric ceramics[J].Journal of Applied Physics,2002(5):2709-2716. |
| [9] | Zhou C R;Feteira A;Shan X et al.Remarkably High-temperature Stable Piezoelectric Properties of Bi (Mg0.5Ti0 5) O3 Modified BiFeO3-BaTiO3 Geramics[J].Applied Physics Letters,2012,101(03):032901-0321-4. |
| [10] | Oh T .Dieelectric Relaxor Properties in the System of(Na1-xKx)1/2Bi1/2TiO3 Ceramics[J].Japanese Journal of Applied Physics,2006,45(6A):5138-5143. |
| [11] | Chen A;Zhi Y .Oxygen-vacancy-related Low Frequency Dielectric Relaxation and Electrical Conduction in Bi:SrTiO3[J].Physical Review B,2000,62(01):228-236. |
| [12] | Setter N;Cross L E .The Role of B-site Cation Disorder in Diffuse Phase Transition Behavior in Ferroelectrics[J].Journal of Applied Physics,1980,51(08):4356-4360. |
| [13] | Robels U;Arlt G .Domain Wall Clamping in Ferroelectrics by Orientation of Defects[J].Journal of Applied Physics,1993,73(07):3454-3460. |
| [14] | Ichiro F;Ryuta M;Kouichi N et al.Structural,Dielectric,and Piezoelectric Properties of Mn-Doped BaTiO3-Bi (Mg1/2Ti1/2) O3-BiFeO3 Ceramics[J].Japanese Journal of Applied Physics,2011,50(09):09ND07-09N1-4. |
| [15] | Xu F.;Ren W.;Xu BM.;Xie ZL.;Hemker KJ.;Trolier-McKinstry S. .Domain wall motion and its contribution to the dielectric and piezoelectric properties of lead zirconate titanate films[J].Journal of Applied Physics,2001(2):1336-1348. |
| [16] | Cao WW.;Randall CA. .GRAIN SIZE AND DOMAIN SIZE RELATIONS IN BULK CERAMIC FERROELECTRIC MATERIALS[J].The journal of physics and chemistry of solids,1996(10):1499-1505. |
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%