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Phases transformations in the Ni–Al system investigation by synchrotron radiation diffraction

✍ Scribed by M.R. Sharafutdinov; M.A. Korchagin; N.F. Shkodich; B.P. Tolochko; P.A. Tsygankov; I.Yu. Yagubova

Publisher: Elsevier Science
Year: 2007
Tongue: English
Weight: 322 KB
Volume: 575
Category: Article
ISSN: 0168-9002
DOI: 10.1016/j.nima.2007.01.046

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✦ Synopsis

Phase's transformations during solid state reaction in the mechanically activated (MA) Ni/Al powders and thin films were investigated by time-resolved diffraction (TRXRD). MA samples with different initial composition and activation time were studied. It was found, that the first detected phase was NiAl 3 eventhough initial compositions showed NiAl-peak presence. Further reaction came through some phase transformations and final product depends on initial stoichiometry. X-ray pattern obtained for solid state reaction in thin film also showed NiAl 3 , but followed by one more phase, assumed Ni 2 Al 9 .

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