通过测定PMN-PT系统中不同PT含量时的介温谱、电滞回线和偏置电场诱导下的压电性能探讨了(1-x)PMN-xPT系统(x=0～0.4))的组成、结构与性能之间的关系.实验结果表明,当x＜0.07时,PMN-PT材料表现为典型的弛豫铁电体;当0.07＜x＜0.13时,材料具有弛豫铁电体为主的过渡型结构;当0.13＜x＜0.33时,具有普通铁电体为主的过渡型结构;当x=0.33～0.34时,材料位于准同型相界,而当x＞0.34,PMN-PT则表现为普通铁电体.
参考文献
| [1] | Swartz S L;Shrout T R;Schulze W A et al.Dielectric prop erties of Lead magnesium niobate ceramics[J].Journal of the American Ceramic Society,1984,67(05):311-315. |
| [2] | Masatomo Y .Low-firing multi-layer capacitor materials[J].Ceramic Bulletin,1983,62(12):1357-1383. |
| [3] | Masatomo Y .New low-firing materials for multi-layer capacitors[J].Ferroelectrics,1986,68:181-189. |
| [4] | Gui Z L;Li L T .Low-temperature sintering of laed-based piezoelectric ceramics[J].Journal of the American Ceramic Society,1989,72(03):486-91. |
| [5] | 李龙土 .弛豫铁电陶瓷研究进展[J].硅酸盐学报,1992,20(05):476-483. |
| [6] | Chen J;Harmer M P .Ordering structure and dielectric properties of undoped and La/Na-doped PMN[J].Journal of the American Ceramic Society,1989,72(04):593-98. |
| [7] | Krause H B;Cowley J M;Wheealey.[J].Acta Crystallographica Section A,1979(35):1015. |
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%