Short-range order in Fe-21.9 at.% Al
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Date
2006-03
Publication Type
Journal Article
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yes
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Abstract
Elastic diffuse neutron scattering of an Fe-21.9 at.% Al single crystal was measured at 878, 966 and 1073 K. The separated short-range order scattering revealed the building elements of the B2 structure as the characteristic local atomic arrangement for all states investigated. Effective pair interaction parameters, obtained by the inverse Monte-Carlo method, were found to depend on temperature, thus prohibiting a determination of possible ground state structures from the high-temperature measurements. An additional X-ray study of single-crystalline Fe-18.2 at.% Al aged at 598 K, gave no indication for B32 as ground state structure.
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published
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Journal / series
Volume
97 (3)
Pages / Article No.
240 - 245
Publisher
Hanser
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Subject
Fe -Al; Elastic diffuse neutron scattering; Short-range order; Superstructures
Organisational unit
03184 - Kostorz, Gernot (emeritus)
03661 - Löffler, Jörg F. / Löffler, Jörg F.