Delayed crack propagation in barium titanate single crystals in humid air

被引：23

作者：

Jiang, Bing ^{[1
]}

Bai, Yang ^{[1
]}

Cao, Jiang-Li ^{[1
]}

Su, Yanjing ^{[1
]}

Shi, San-Qiang ^{[2
]}

Chu, Wuyang ^{[1
]}

Qiao, Lijie ^{[1
]}

机构：

[1] Univ Sci & Technol Beijing, Minist Educ, Key Lab Environm Fracture, Ctr Corros & Protect, Beijing 100083, Peoples R China

[2] Hong Kong Polytech Univ, Dept Mech Engn, Hong Kong, Hong Kong, Peoples R China

来源：

JOURNAL OF APPLIED PHYSICS | 2008年 / 103卷 / 11期

关键词：

D O I：

10.1063/1.2921136

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Domain witching of ferroelectrics under mechanical or electric load in vacuum or dry air has been intensively studied. However, the effects of environments on the domain switching in ferroelectrics have not been well understood. Here, we demonstrate that domain configurations in BaTiO3 single crystal under sustained load can be significantly affected by the humidity due to the decrease in surface energy and electrostatic energy upon adsorption of polar water molecules. Consequently, the crack propagation behaviors of the ferroelectrics under sustained load can be remarkably altered. (C) 2008 American Institute of Physics.

引用

页数：3

共 17 条

[1] Effect of electric fields on fracture behavior of ferroelectric ceramics [J].