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Type: Artigo de periódico
Title: Modeling the atomic structure of an amorphous Ni46Ti54 alloy produced by mechanical alloying using RMC simulations
Author: Gasperini, AAM
Machado, KD
de Lima, JC
Grandi, TA
Abstract: The local atomic order of an amorphous Ni46Ti54 alloy produced by Mechanical Alloying was studied by X-ray diffraction and modeled through reverse Monte Carlo simulations of its X-ray structure factor. From the simulations the partial pair distribution functions G(ij)(r) and partial structure factors S-ij(K) were determined and, from these functions, coordination numbers and interatomic distances for the first neighbors were calculated. The alloy shows a chemical short-range order and a preference for unlike pairs. The bond-angle distribution functions Theta(i-j-k)(cos theta) indicated that the local environment about Ni and Ti atoms are almost the same. (c) 2006 Elsevier B.V. All rights reserved.
Country: Holanda
Editor: Elsevier Science Bv
Rights: fechado
Identifier DOI: 10.1016/j.cplett.2006.08.105
Date Issue: 2006
Appears in Collections:Unicamp - Artigos e Outros Documentos

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