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Type: Artigo de evento
Title: The Effect Of Atmosphere Composition In Plasma Nitrogenation Of Sm 2fe17
Author: Ardisson J.D.
Araujo R.C.
Macedo W.A.A.
Persiano A.I.C.
Gama S.
Abstract: The change on the structural and magnetic properties of the Sm 2Fe17 compound as the ratio of H2/N2 forming the mixture of the atmosphere in a plasma chamber used to nitride this compound varied, was investigated by Mössbauer spectroscopy and X-ray diffraction. Our results show that the increase of the hydrogen concentration in the mixed H2/ N2 atmosphere reduces the formation of the nitrogen-rich phases, Sm2Fe17N8 and Sm 2Fe17N11and increases the formation of the Sm2Fe17N3 phase, whose maximum values are obtained for 70% H2 in the gas mixture. © 2003 Elsevier B.V. All rights reserved.
Rights: fechado
Identifier DOI: 10.1016/j.jmmm.2003.12.1008
Date Issue: 2004
Appears in Collections:Unicamp - Artigos e Outros Documentos

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