|
|
- 2018
Al2O3掺杂BaTi0.85Sn0.15O3陶瓷的制备及性能表征
|
Abstract:
通过传统固相二次烧结法来制备x wt% Al2O3（x=0、1.0、1.5）/BaTi0.85Sn0.15O3（BTS）陶瓷。研究了掺杂不同含量Al2O3对BTS陶瓷的微观结构、介电性能及挠曲电性能的影响。结果表明，掺杂Al2O3的BTS陶瓷不改变陶瓷的晶体结构，仍为标准钙钛矿结构晶型；Al2O3的掺入能够有效降低晶粒尺寸，具有明显的细晶作用。随着Al2O3含量的增大，Al2O3/BTS陶瓷的介电常数减小，介电损耗得到明显改善，居里峰逐渐宽化且向温度高的方向偏移。Al2O3/BTS陶瓷的挠曲电系数随着Al2O3含量的增加和测试环境温度的升高均减小。此外，Al2O3/BTS陶瓷的挠曲电系数和介电常数之间存在一种近线性关系，但当温度非常接近于居里温度时，这种线性关系减弱。 x wt% Al2O3(x=0, 1.0, 1.5)/BaTi0.85Sn0.15O3(BTS) ceramics were prepared by the traditional secondary solid state reaction method. And the effects of BTS ceramics doped with Al2O3 on the microstructure, dielectricity and flexoelectricity were studied. The results show that BTS ceramics doped with Al2O3 are still the standard perovskite crystal structure, Al2O3 reduces the size of the grain effectively. When Al2O3 doping amount increases, the dielectric constant of Al2O3/BTS ceramics decreases, the dielectric loss of Al2O3/BTS ceramics decreases, the Curie peaks broaden and shift to the high temperature direction. With the increase of Al2O3 content and test temperature, the flexoelectric coefficient of Al2O3/BTS ceramics decreases.And there is a near linear relationship between the coefficient of deflection and dielectric constant of Al2O3/BTS ceramics, but when the temperature is very close to the Curie temperature, the linear relationship is weakened. 国家自然科学基金（51561022；51361022）
| [1] | JIANG X N, HUANG W B, ZHANG S J. Flexoelectric nano-generator:Materials, structures and devices[J]. Nano Energy, 2013, 2(6):1079-1092. |
| [2] | HUANG W, KWON S R, ZHANG S, et al. A trapezoidal flexoelectric accelerometer[J]. Journal of Intelligent Material Systems and Structures, 2014, 25(3):271-277. |
| [3] | KWON S R, HUANG W, ZHANG S, et al. Flexoelectric sensing using a multilayered barium strontium titanate structure[J]. Smart Materials and Structures, 2013, 22(11):115017. |
| [4] | MA W, CROSS L E. Observation of the flexoelectric effect in relaxor Pb(Mg1/2Nb2/3)O3 ceramics[J]. Applied Physics Letters, 2001, 78(19):2920-2921. |
| [5] | MA W, CROSS L E. Flexoelectric of barium titanate[J]. Applied Physics Letters, 2006, 88(23):232902-232903. |
| [6] | 吴再辉, 秦珊, 白帆, 等. 阻抗渐变高介电钛酸钡/聚酰亚胺复合薄膜的设计与制备[J]. 复合材料学报, 2016, 33(12):2712-2717. WU Z H, QING S, BAI F, et al. Design and fabrication of high-dielectric BaTiO3/polyimide composite film with impedance gradient[J]. Acta Materiae Compositae Sinica, 2016, 33(12):2712-2717(in Chinese). |
| [7] | IANCULESCU A, BERGER D, VIVIANI M, et al. Investigation of Ba1-x Srx TiO3 ceramics prepared from powders synthesized by the modified Pechini route[J]. Journal of the European Ceramic Society, 2007, 27(13-15):3655-3658. |
| [8] | BEDNORZ J G, MULLER K A. Sr1-xCaxTiO3: An XY quantum ferroelectric with transition to randomness[J]. Physical Review Letters, 1984, 52(25):2289-2292. |
| [9] | QI J Q, LIU B B. Dielectric properties of barium zirconate titanate (BZT) ceramics tailored by different donors for high voltage applications[J]. Solid State Sciences, 2012, 14(10):1520-1524. |
| [10] | 林榕, 黄瑞南, 胡勇, 等. MgTiO3掺杂对BST基电容器陶瓷介电性能的影响[J]. 电子元件与材料, 2015, 34(10):23-26. LIN R, HUANG R N, HU Y, et al. Influence of MgTiO3 doping on dielectric properties of BST based capacitor ceramics[J]. Electronic Componets and Materials, 2015, 34(10):23-26(in Chinese). |
| [11] | 沈振江, 邴丽娜. 固相法烧结温度对钛酸钡陶瓷介电性能的影响[J]. 硅酸盐通报, 2015, 34(2):320-324. SHE Z J, BING L N. Influence of sintering temperature on the dielectric properties of barium titanate ceramics synthesized by solid state reaction[J]. Bulletin of the Chinese Ceramic Society, 2015, 34(2):320-324(in Chinese). |
| [12] | 吕静, 党智敏. 低热膨胀系数纳米碳化硅/聚酞亚胺复合薄膜的制各与性能[J]. 复合材料学报, 2011, 28(6):41-45. LV J, DANG Z M. Preparation and properties of nano SiC/polyimide composite films with low thermal expansion characteristic[J]. Acta Materiae Compositae Sinica, 2011, 28(6):41-45(in Chinese). |
| [13] | 何伟, 李斌, 张其土. 低介电常数无铅高压陶瓷电容器材料[J]. 材料科学与工程学报, 2008, 26(2):281-283. HE W, LI B, ZHANG Q T. Lead-free ceramics capacitor materials of low dielectric constant and high voltage[J]. Journal of Materials Science & Engineering, 2008, 26(2):281-283(in Chinese). |
| [14] | 陈维, 王冲, 陈寿田. MgTiO3对SrTiO3-Bi2O3nTiO2系统的微观结构和介电性能的影响[J]. 西安交通大学学报, 1997, 31(4):7-11. CHEN W, WANG C, CHEN S T. The influence of microstructure and dielectric property of MgTiO3 in SrTiO3-Bi2O3·nTiO2 system[J]. Journal of Xi'an Jiaotong University, 1997, 31(4):7-11(in Chinese). |
| [15] | 张磊, 钟维烈, 彭毅萍, 等. 钛酸锶钡的铁电相变与晶胞体积的关联[J]. 物理学报, 2000, 49(7):1371-1376. ZHANG L, ZHONG W L, PENG Y P, et al. A correlation between the ferroelectric phase transition and the cell volume in barium strontium titanate[J]. Acta Physica Sinica, 2000, 49(7):1371-1376(in Chinese). |
| [16] | 张鹤凌, 梁辉, 徐廷献. Fe2O3的掺杂对BaSn0.11Ti0.89O3陶瓷介电性能的影响[J]. 压电与声光, 2003, 25(4):312-314. ZHANG H L, LIANG H, XU T X. Influence of Fe2O3 doping on dielectric properties of BaSn0.11Ti0.89O3 based ceramic[J]. Piezoelectric and Acoustooptics, 2003, 25(4):312-314(in Chinese). |
| [17] | CATALAN G, SINNAMON L J, GREGG J M. The effect of flexoelectricity on the dielectric properties of inhomogeneously strained ferroelectric thin films[J]. Journal of Physics:Condensed Matter, 2004, 16(13):2253-2264. |
| [18] | HONG J W, VANDERBILT D. First-principles theory and calculation of flexoelectricity[J]. Physical Review B, 2013, 88(17):174107. |
| [19] | BIANCOLI A, FANCHER C M, JONES J L, et al. Breaking of macroscopic centric symmetry in paraelectric phases of ferroelectric materials and implications for flexoelectricity[J]. Nature Materials, 2015, 14(2):224-229. |
| [20] | 王丽娟, 高玫香, 谢遵园, 等. BaTiO3@Cu核-壳复合粒子电/磁双响应性能[J]. 复合材料学报, 2017, 34(4):844-849. WANG L J, GAO M X, XIE Z Y, GAO L X. Electromagnetic response of BaTiO3@Cucore-shell composite particles[J]. Acta Materiae Compositae Sinica, 2017, 34(4):844-849(in Chinese). |
| [21] | 汪宁, 张波萍, 赵磊, 等. (Ba1-x Cax)(Ti0.94Zr0.056Sn0.004)O3无铅压电陶瓷电学性能和Curie温度的协同调控[J]. 硅酸盐学报, 2016, 44(12):1686-1693. WANG N, ZHANG B P, ZHAO L, et al. Optimization of electrical properties and curie temperature of (Ba1-x Cax)(Ti0.94Zr0.056Sn0.004)O3 lead-free piezoelectric ceramics[J]. Journal of the Chinese Ceramic Society, 2016, 44(12):1686-1693(in Chinese). |
| [22] | 殷佳, 黄新友, 岳振星, 等. Nd2O3掺杂对BCZT无铅压电陶瓷性能和结构的影响[J]. 电子元件与材料, 2016, 35(2):22-25. YIN J, HUANG X Y, YUE Z X, et al. Influence of Nd2O3 doping on the properties and structure of BCZT lead-free piezoelectric ceramics[J]. Electronic Components and Materials, 2016, 35(2):22-25(in Chinese). |
| [23] | CUI Y R, LIU X Y, YUAN C L, et al. Preparation and properties of Sm2O3 doped (Ba0.7Ca0.3)TiO3-Ba(Zr0.2Ti0.8)O3 lead-free piezoelectric ceramics[J]. Journal of Inorganic Materials, 2012, 27(7):731-734. |
| [24] | SHU L L, WEI X Y, JIN L, et al. Enhanced direct flexoelectricity in paraelectric phase of Ba (Ti0.87Sn0.13)O3 ceramics[J]. Applied Physics Letters, 2013, 102(15):152904. |
| [25] | 张茜, 董桂霞, 吕易楠, 等. ZnAl2O4和La2O3对Ca0.61Nd0.26TiO3-MgTiO3复合陶瓷介电性能的影响[J]. 复合材料学报, 2017, 34(4):859-864. ZHANG X, DONG G X, LV Y N, et al. Effect of ZnAl2O4 and La2O3 on dielectric properties of Ca0.61Nd0.26TiO3-MgTiO3 composite ceramics[J]. Acta Materiae Compositae Sinica, 2017, 34(4):859-864(in Chinese). |
