用固相反应法分别合成了 Zn2 SnO 4、Ba-TiO 3粉体,用传统陶瓷制备工艺制备了 Zn2 SnO 4掺杂的 BaTiO 3陶瓷(ZS-BT),研究了掺杂量变化对 Ba-TiO 3陶瓷介电性能的影响。研究发现,适量的Zn2 SnO 4掺杂可促进 BaTiO 3陶瓷的烧结,降低 Ba-TiO 3陶瓷的介电损耗；随着掺杂量的增加,BaTiO 3陶瓷的介电居里峰逐渐降低弥散,并向低温方向移动；在测量频率范围内(102~109 Hz),Zn2 SnO 4掺杂使得介温曲线在40~125℃温度区间内变得平坦,当Zn2 SnO 4的掺杂比例为2％时,介电常数变化率低于8％。这些结果表明,ZS-BT 陶瓷对研究温度稳定性良好的陶瓷电容器有着重要的意义。
Zn2 SnO 4 and BaTiO 3 powers were synthesized via the solid state reaction,respectively.Zn2 SnO 4 doped BaTiO 3 ceramics (ZS-BT)were prepared via traditional ceramic preparation process and their dielectric proper-ties were studied.The results show that doping appropriate amount of Zn2 SnO 4 could promote the ceramic sin-tering,reduce the dielectric loss;With increasing Zn2 SnO 4 content,the curie peak of dielectric-temperature spectra for BaTiO 3 ceramics were depressed and shifted to low temperature;In the temperature range of 40-125℃,the dielectric-temperature spectra (10 2 -10 9 Hz)get flat and the BaTiO 3 ceramics doped with 2% Zn2 SnO 4 exhibits a lowest dielectric constant change rate of less than 8%.These results suggest that ZS-BT ceramics has an important significance for researching temperature-stable ceramic capacitor materials.
参考文献
| [1] | 钟维烈.铁电体物理学[M].北京:科学出版社,1996 |
| [2] | 曲远方.功能陶瓷材料[M].北京:化学工业出版社,2003:89-144. |
| [3] | Ding Shiwen;Ma Guangcheng;Guo Xianghui et al.Sinte-ring temperature and dielectric characteristics of BaSnx Ti1-x O 3 nanometre powder[J].Journal of Function-al Materials,1999,30(01):49-50. |
| [4] | 沈振江,陈燕,江向平,陈万平,邴丽娜.二氧化锡不同掺杂方式对钛酸钡介电性能的影响[J].中国陶瓷,2012(01):28-31. |
| [5] | Caballero A C;Fernandez J F;Moure C et al.ZnO-doped Ba-TiO3:microstructure and electrical properties[J].Journal of the European Ceramic Society,1997,17(04):513-523. |
| [6] | 徐甲强,贾晓华,娄向东,李超.低温固相反应合成Zn2SnO4及其气敏性能[J].硅酸盐学报,2006(03):303-307. |
| [7] | ZANG Guo-Zhong,WANG Jin-Feng,CHEN Hong-Cun,SU Wen-Bin,WANG Chun-Ming,QI Peng.Nonlinear Electrical Behaviour of Composite SnO2-Zn2SnO4 System[J].中国物理快报（英文版）,2005(03):750-753. |
| [8] | 肖长江,王春华,王改民,靳常青.高密度纳米钛酸钡素坯的制备和对烧结的影响[J].中国陶瓷,2008(06):55-57. |
| [9] | Wei-Gang Yang;Bo-Ping Zhang;Nan Ma .High piezoelectric properties of BaTiO_3-xLiF ceramics sintered at low temperatures[J].Journal of the European Ceramic Society,2012(4):899-904. |
| [10] | Ho I C .Semiconducting barium titanate ceramics prepared by boron-containning liquid-phase sintering[J].Journal of the American Ceramic Society,1994,77(03):829-832. |
| [11] | Wang Xiaohui;Jiang Yuyang;Zhao Yufen et al.Study of sintering behavior and dielectric properties of phosphor-doped barium titanate[J].Journal of Functional Materi-als,1998,29(06):613-615. |
| [12] | Guo-zhong Zang;Ben-shun Lv;Li-ben Li;Fang Mei .Effect of Zn_2SnO_4 on the sintering and electrical properties of SnO_2 ceramics[J].Journal of electroceramics,2013(4):228-231. |
| [13] | Li Tao;Li Longtu;Gui Zhilun .Temperature dependence of dielectric properties in BaTiO 3 based X7R materials doped with CeO 2[J].Journal of Functional Materials,2000,31(z1):55-56. |
| [14] | 张晨,曲远方,单丹.CeO2掺杂对BaTiO3基陶瓷电介质的影响[J].压电与声光,2007(01):77-79. |
| [15] | C. C. Wang;C. M. Lei;G. J. Wang;X. H. Sun;T. Li;S. G. Huang;H. Wang;Y. D. Li .Oxygen-vacancy-related dielectric relaxations in SrTiO_3 at high temperatures[J].Journal of Applied Physics,2013(9):094103-1-094103-9. |
| [16] | 方捷.片状电容器的尺寸及温度特性标准[J].电子世界,1996(04):28. |
| [17] | Hennings D;Rosenstein G .Temperature-stable dielectrics based on chemically inhomogeneous BaTiO 3[J].Journal of the American Ceramic Society,1984,67(04):249-254. |
| [18] | Park Y;Kim Y H;Kim H G .The effect of grain size on dielectric behavior of BaTiO 3 based X7R materials[J].Materials Letters,1996,28(1-3):101-106. |
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