In situ observation of electric field induced crack propagation in   BaTiO3 crystals along the field direction

doi:10.1016/j.scriptamat.2012.06.020

CORC > 北京大学 > 工学院

	In situ observation of electric field induced crack propagation in BaTiO3 crystals along the field direction
	Li, Y. W. ; Li, F. X.
刊名	材料学刊
	2012
关键词	Barium titanate crystals Crack propagation Polarized light microscopy Knoop indentation LEAD-ZIRCONATE-TITANATE SINGLE-CRYSTAL FERROELECTRIC CERAMICS FATIGUE DOMAIN GROWTH BEHAVIOR DRIVEN
DOI	10.1016/j.scriptamat.2012.06.020
英文摘要	Electric field induced crack propagation in BaTiO3 crystals is investigated in situ using polarized light microscopy. A natural through-crack was generated by Knoop indentation and crack propagation is observed under a cyclic electric field parallel to crack direction. The crack propagates steadily along the field direction in a zigzag path and 90 degrees domain switching always occurs before crack propagation. The shear stress caused by incompatible domain switching near the crack tip is thought to be the driving force for crack growth. (c) 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering; SCI(E); EI; 7; ARTICLE; 6; 601-604; 67
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/154588]
专题	工学院
推荐引用方式 GB/T 7714	Li, Y. W.,Li, F. X.. In situ observation of electric field induced crack propagation in BaTiO3 crystals along the field direction[J]. 材料学刊,2012.
APA	Li, Y. W.,&Li, F. X..(2012).In situ observation of electric field induced crack propagation in BaTiO3 crystals along the field direction.材料学刊.
MLA	Li, Y. W.,et al."In situ observation of electric field induced crack propagation in BaTiO3 crystals along the field direction".材料学刊 (2012).