TITLE

Heterotwin formation during growth of nanolayered Al-TiN composites

AUTHOR(S)
Bhattacharyya, Dhriti; Xiang-Yang Liu; Genc, Arda; Fraser, Hamish L.; Hoagland, Richard G.; Misra, Amit
PUB. DATE
March 2010
SOURCE
Applied Physics Letters;3/1/2010, Vol. 96 Issue 9, p093113
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
High stacking fault energy (SFE) materials such as Al do not form twins easily. Here, the authors report, through high-resolution transmission electron microscopy, that Al layers in an alternating Al/TiN composite grow in a twin relationship to both the TiN and the underlying Al layers. Density functional theory based ab initio modeling reveals that nitrogen termination in the {111} growth plane of the TiN layers greatly favors the growth of twin oriented Al layers on them. This finding provides a definite way of creating a twin-modulated structure in high SFE materials.
ACCESSION #
48428965

 

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