通过偏振光显微镜对连续应力和恒电场作用下的BaTiO3单晶中的裂纹扩展和畴变过程进行原位观察.结果表明,在连续应力的作用下,裂尖处应力集中导致出现畴变带,裂纹与畴变带垂直相交,畴带和裂纹一起向前移动,畴变在先,裂纹扩展在后;在恒电场作用下,畴变引起的不协调应变导致电致裂纹扩展,畴变始终发生在裂纹扩展之前,裂纹向前扩展时不断的切过前方的畴带,直到不再有畴变发生时裂纹停止扩展.
参考文献
| [1] | Yang W.Mechatronic Reliability.Beijing:Tsinghua University Press,2001:1(杨卫.力电失效学.北京:清华大学出版社,2001:1) |
| [2] | Lynch C S.Acta Mater,1996,44:4137 |
| [3] | Lu W,Fang D N,Hwang K C.Acta Mater,1999;47:2913 |
| [4] | Li F X,Rajapakse R K N D.Aeta Mater,2007;55:6472 |
| [5] | Shaikh M G,Phanish S.Sivakumar S M.Comput Mater Sci,2006;37:178 |
| [6] | Tang L P,Xie S H,Zheng X J,Zhou Y C,Li J Y.Mech Mater,2008;40:362 |
| [7] | Tan X,Shang J K.J Appl Phys,2004,96:2805 |
| [8] | Zhang Z K,Fang D N,Soh A K.Mech Mater,2006;38:25 |
| [9] | Roelofs A,Bottger U,Waser R.Appl Phys Left,2000;77:3444 |
| [10] | Shin S,Baek J,Hong J W,Khim Z G.J Appl Phys,2004;96:4372 |
| [11] | Jiang B,Bai Y,Chu W Y,Shi S Q,Qiao L J.Su Y J.Appl Phys Lett,2008;93:152905 |
| [12] | Zhang Z H,Qi X Y,Duan X F.Appl Phys Lett,2006;89:242905 |
| [13] | Park J H,Park J,Lee K B.Appl Phys Lett,2007;91:012906 |
| [14] | Fang F,Yang W,Zhang F C,Luo H S.J Am Ceram Soc,2005;88:2491 |
| [15] | Huang H Y,Chu W Y,Su Y J,Qiao L J,Gao K W.Mater Sci Eng,2005;B122:1 |
| [16] | Wang F,Su Y J,He J Y,Qiao L J,Chu W Y.Scr Mater,2006;54:201 |
| [17] | Wang Y,Chu W Y,Gao K W,Su Y J,Qiao L J.Appl Phys Lett,2003;82:1583 |
| [18] | Kounga Njiwa A B,Lupascu D C,Rodel J.Acta Mater,2004;52:4919 |
| [19] | Hwang S C,Lynch C S,McMeeking R M.Acta Metall Mater,1995;43:2073 |
| [20] | Meschke F,Kollek A,Schneider G A.J Eur Ceram Soc,1997;17:1143 |
| [21] | Busche M J,Hsia K J.Scr Mater,2001;44:207 |
| [22] | Beom H G,Kang K J.Acta Mech,2006;185:201 |
| [23] | Jiang Y J,Fang D N,Li F X.Appl Phys Left,2007;90:222907 |
| [24] | Jiang B,Bai Y,Cao J L,Su Y J,Shi S Q,Chu W Y,Qiao L J.J Appl Phys,2008;103:116102 |
| [25] | Jiang B,Bai Y,Chu W Y,Shi S Q,Qiao L J.Su Y J.Appl Surf Sci,2008;254:5594 |
| [26] | Huang K Z,Wang Z Q.Macro-Micro-Mechanics and Strengthening and Toughening Design of Materials,Beijing:Tsinghua University Press,2003:182(黄克智,王自强.材料的宏微观力学与强韧化设计.北京:清华大学出版社,2003:182) |
| [27] | Chu W Y,Qiao L J,Chen Q Z,Gao K W.Fracture and Environment Sensitive Fracture.Beijing:Science Press,2000:77(褚武扬,乔利杰,陈奇志,高克玮.断裂与环境断裂.北京:科学出版社,2000:77) |
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%