Direct Observation of a Screw Dislocation Normal to the Beam by Z-Contrast STEM

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	Direct Observation of a Screw Dislocation Normal to the Beam by Z-Contrast STEM
	F. Z. Li; H. Q. Nian; K. Du; J. M. Wang; J. Y. Wang; Y. C. Zhou
	2012
发表期刊	Journal of the American Ceramic Society
ISSN	0002-7820
卷号	95 期号:2 页码:466-468
摘要	Dislocation core structures in metals and ceramics are long-standing questions in materials research. Detailed knowledge about core structure of screw dislocations remains a major challenge. We have designed and synthesized a novel HfAl4C4 ceramic with a large c axis and vast difference in atomic numbers, in which a c[0001] screw dislocation is directly observed with dislocation line perpendicular to the viewing direction by STEM. This observation has cast a new light on revealing the detailed core structure of screw dislocations.
部门归属	[zhou, yanchun] aerosp res inst mat & proc technol, sci & technol adv funct composite lab, beijing 100076, peoples r china. [li, fangzhi; nian, hongqiang; du, kui; wang, jiemin; wang, jingyang] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china.;zhou, yc (reprint author), aerosp res inst mat & proc technol, sci & technol adv funct composite lab, beijing 100076, peoples r china.;yczhou714@gmail.com
关键词	Core Structures Electron-microscopy Gan
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/60054
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	F. Z. Li,H. Q. Nian,K. Du,et al. Direct Observation of a Screw Dislocation Normal to the Beam by Z-Contrast STEM[J]. Journal of the American Ceramic Society,2012,95(2):466-468.
APA	F. Z. Li,H. Q. Nian,K. Du,J. M. Wang,J. Y. Wang,&Y. C. Zhou.(2012).Direct Observation of a Screw Dislocation Normal to the Beam by Z-Contrast STEM.Journal of the American Ceramic Society,95(2),466-468.
MLA	F. Z. Li,et al."Direct Observation of a Screw Dislocation Normal to the Beam by Z-Contrast STEM".Journal of the American Ceramic Society 95.2(2012):466-468.