Formation of Mg2Ni alloy layers and kinetic studies in the binary Mg-Ni system

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Title:	Formation of Mg2Ni alloy layers and kinetic studies in the binary Mg-Ni system
Authors:	Cheng,SL;Chen,YY;Lee,SW;Hsu,HF
Contributors:	化學工程與材料工程學系
Keywords:	HYDROGEN STORAGE PROPERTIES;DIFFUSION;INTERDIFFUSION;SORPTION;FILMS;CU
Date:	2009
Issue Date:	2010-06-29 17:27:04 (UTC+8)
Publisher:	中央大學
Abstract:	We report here the study on the kinetics and growth of Mg2Ni alloy layers by solid-state reactions in the Mg-Ni system. After appropriate heat treatments, only polycrystalline Mg2Ni phase was found to form on the Mg/Ni interfaces and the grain sizes of Mg2Ni formed near the Mg side were found to be much smaller than those formed near the Ni side. Cross-sectional SEM examinations revealed that the Mg2Ni intermetallic layers grew following the diffusion-control process. During the formation of Mg2Ni layers, the dominant diffusing species was determined to be Ni by using the immobile trench markers. Furthermore, based on the marker analysis, the intrinsic and interdiffusion diffusivities for the Mg-Ni diffusion couples at different temperatures have been determined. (C) 2009 Elsevier B.V. All rights reserved.
Relation:	THIN SOLID FILMS
Appears in Collections:	[National Central University Department of Chemical & Materials Engineering] journal & Dissertation

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