Title
Structural characterization of nanostructured <tex>$Ni_{3}Al$</tex> processed by inert gas condensation Structural characterization of nanostructured <tex>$Ni_{3}Al$</tex> processed by inert gas condensation
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Aedermannsdorf ,
Subject
Physics
Source (journal)
Diffusion and defect data : solid state data : part A : defect and diffusion forum. - Aedermannsdorf, 1988, currens
Volume/pages
213(2003) :2 , p. 19-30
ISSN
1012-0386
ISI
000183389500002
Carrier
E
Target language
English (eng)
Affiliation
University of Antwerp
Abstract
High-resolution transmission electron microscopy was performed on compacted Ni(3)Al nanostructured material prepared by the inert gas condensation technique. From electron diffraction data an incomplete L1(2) ordering of the crystallites is observed in the free particles as well as in the room temperature compacted samples. However, a completely ordered L1(2) structure with much bigger and well-defined crystallites exhibiting several defects is observed in material compacted and annealed at 773 K. Sharp crystallite boundaries as well as amorphous material and voids are observed in between crystallites in all samples, the former being dominant in the annealed material, the latter in the as-prepared one.
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