A first HREM observation of the ordered carbon sublattice in a transition-metal carbide (VC1-x)
作者:
T. Epicier,
Y. Kumashiro,
期刊:
Philosophical Magazine Letters
(Taylor Available online 1987)
卷期:
Volume 55,
issue 4
页码: 171-179
ISSN:0950-0839
年代: 1987
DOI:10.1080/09500838708207552
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
The microstructure of long-range-ordered vanadium carbides based on V6C5has been analysed by means of high-resolution electron microscopy (HREM). Lattice images have been produced by including in the objective-aperture superlattice spots associated with the ordered distribution of vacancies in the interstitial carbon sublattice of these substoichiometric compounds: ‘perfectly’ ordered structures have been imaged, and a direct discussion of the experimental micrographs is made in terms of positions of the vacancy-containing columns. This HREM study will soon be extended to theinvestigation of various kinds of planar defects within differently annealed specimens.
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