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	Structural phase transition in the Fe-Ta system studied by ion beam mixing
	Ding, N. ; Wang, T. L. ; Tai, K. P. ; Li, J. H. ; He, X. ; Dai, Y. ; Liu, B. X.
	2010-10-12 ; 2010-10-12
关键词	Amorphous phase Fe-Ta alloy Ion beam mixing Metastable crystalline phase AMORPHOUS ALLOY FORMATION GLASS-FORMING ABILITY THERMAL-STABILITY METALLIC GLASSES AMORPHIZATION IRRADIATION PREDICTION STATE Chemistry, Physical Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering
中文摘要	For the Fe-Ta system characterized by a negative heat of formation (-22 kJ/mol), 200 keV xenon ion beam mixing with nano-sized Fe-Ta multilayered films was conducted to study the non-equilibrium alloy phase formation. The results show that uniform amorphous alloys can be obtained within a composition range of 25-80 at.%Ta. which falls in the maximum possible amorphization range (MPAR) (3-93 at.% Ta) predicted by the empirical model. Besides, two metastable crystalline phases both of fcc structures, yet with different lattice constants were obtained. The possible mechanisms for the formation of both amorphous alloys and metastable crystalline phases are also discussed in terms of the atomic collision theory. (C) 2008 Elsevier B.V. All rights reserved.
语种	英语 ; 英语
出版者	ELSEVIER SCIENCE SA ; LAUSANNE ; PO BOX 564, 1001 LAUSANNE, SWITZERLAND
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/78392]
专题	清华大学
推荐引用方式 GB/T 7714	Ding, N.,Wang, T. L.,Tai, K. P.,et al. Structural phase transition in the Fe-Ta system studied by ion beam mixing[J],2010, 2010.
APA	Ding, N..,Wang, T. L..,Tai, K. P..,Li, J. H..,He, X..,...&Liu, B. X..(2010).Structural phase transition in the Fe-Ta system studied by ion beam mixing..
MLA	Ding, N.,et al."Structural phase transition in the Fe-Ta system studied by ion beam mixing".(2010).

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