| 铁电陶瓷电致失效的非平衡态统计理论研究 |
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| 引用本文： | 杨绍甫,苏国生.铁电陶瓷电致失效的非平衡态统计理论研究[J].河南科学,2007,25(5):735-737. |
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| 作者姓名： | 杨绍甫 苏国生 |
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| 作者单位： | 1. 许昌职业技术学院,信息工程系,河南,许昌,461000
2. 许昌职业技术学院,规划建筑工程系,河南,许昌,461000 |
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| 摘 要： | 运用非平衡态统计断裂理论对电场中的中心穿透裂纹的扩展问题进行研究.从理论上得到与实验结果相一致的结论:负电场阻碍裂纹的扩展而正电场促进裂纹的扩展.
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| 关 键 词： | 非平衡态统计理论 裂纹 铁电陶瓷 电场 |
| 文章编号： | 1004-3918（2007）05-0735-03 |
| 修稿时间： | 2007-09-08 |
Nonequilibrium Statistical Theory of Fracture in Ferroelectric Ceramics |
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| YANG Shao-fu,SU Guo-sheng.Nonequilibrium Statistical Theory of Fracture in Ferroelectric Ceramics[J].Henan Science,2007,25(5):735-737. |
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| Authors: | YANG Shao-fu SU Guo-sheng |
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| Institution: | 1.Department of Information Engineering,Xuchang Professional Technology Institute,Xuchang 461000,China;2.Department of Plans the construction Engineering,Xuchang Professional Technology Institute,Xuchang 461000,China |
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| Abstract: | In order to study the crack growth behavior in ferroelectric ceramics when an electric field is applied,a non-equilibrium statistical theory is used in this paper.And it is concluded that the crack propagates slowly under a negative applied electric field,whereas the crack growth rate is enhanced under a positive applied electric field. |
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| Keywords: | non-equilibrium statistical theory crack ferroelectric ceramics electric fields |
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