研究了PLZT铁电陶瓷的电疲劳特性.结果表明:在加上极化电场以后,相对于未疲劳试样,电疲劳试样中沿着电场方向翻转的电畴较少,沿偏离电场方向的电畴较多.SEM分析表明疲劳前样品的断裂模式主要为穿晶断裂,而疲劳后主要为沿晶断裂.利用原位XRD分析得出样品在交流电场下由90°畴变导致的畴变应变高达0.1%,这种反复高畴变应变造成的沿晶微裂纹是造成疲劳试样电畴沿电场方向翻转减少的主要原因,并最终导致了铁电陶瓷的电疲劳.
参考文献
| [1] | Jiang Q Y;Cross L E .[J].Journal of Materials Science,1993,28:4536. |
| [2] | Jiang Q Y;Cao W W;Cross L E .[J].Journal of the American Ceramic Society,1994,77:211. |
| [3] | 陈志武,程璇,张颖.铁电陶瓷材料在交变电场作用下疲劳研究进展[J].稀有金属材料与工程,2004(07):673-678. |
| [4] | Pan W Y;Yue C F;Tosyali O .[J].Journal of the American Ceramic Society,1992,75:1534. |
| [5] | Park S S;Carmjia G P;Park S B .[J].SPIE,3040:120. |
| [6] | Nuffer J;Lupascu D C;Rodel J .[J].Journal of the European Ceramic Society,2001,21:1421. |
| [7] | Furuta A;Uchino K .[J].Journal of the American Ceramic Society,1993,76:1615. |
| [8] | Wang D;Fotinich Y;Carman G P .[J].Journal of Applied Physiology,1998,83:5342. |
| [9] | Pan M J;Park S E;Park C W .[J].Journal of the American Ceramic Society,1996,79:2971. |
| [10] | 白辰阳;桂治轮;李龙土 .[J].功能材料,1999,30:515. |
| [11] | 张颖,陈志武,程璇,张飒.原位XRD法研究电疲劳过程中铁电陶瓷PLZT的畴变[J].金属学报,2004(12):1299-1304. |
| [12] | 陈志武,程璇,张颖.温度对PLZT铁电陶瓷电疲劳性能的影响[J].稀有金属材料与工程,2004(08):847-851. |
| [13] | Li S I;Bhalla A S;Newnham R E;Cross L E .[J].Journal of Materials Science,1994,29:1290. |
| [14] | Tsurumi T;Kumano Y;Ohashi N;Takenaka T, Fukunaga O .[J].Japanese Journal of Applied Physics,1997,36:5970. |
| [15] | Li X P;Shih W Y;Vartuli J S;Milius D L, Aksay I A, Shih W H .[J].Journal of the American Ceramic Society,2002,85:844. |
| [16] | 张颖.关于铁电铁弹材料的自然构形[J].力学学报,2000(02):213-222. |
| [17] | Cao H;Evans A .[J].Journal of the American Ceramic Society,1994,77:1783. |
| [18] | Pak Y E .[J].Journal of Applied Mechanics,Transactions ASME,1990,57:647. |
| [19] | Zhang T Y;Tong P .[J].International Journal of Solids and Structures,1996,33:343. |
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%