Interdiffusion and the phase boundary compositions in the Co-To system

Baheti, Varun A and Roy, Soumitra and Ravi, Raju and Paul, Aloke (2013) Interdiffusion and the phase boundary compositions in the Co-To system. In: INTERMETALLICS, 33 . pp. 87-91.

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Abstract

Diffusion parameters such as the interdiffusion coefficients and the ratio of the tracer diffusion coefficients are calculated in the Co2Ta Laves phase. The activation energy for the interdiffusion coefficients is calculated as 186 +/- 29 kJ/mol. The ratio of tracer diffusion coefficients indicates that Co has higher diffusion rate than that of Ta. This is explained with the help of possible point defects and the crystal structure of the phase: The phase boundary compositions measured in this study is different from the compositions published previously. (C) 2012 Elsevier Ltd. All rights reserved.

Item Type:	Journal Article
Publication:	INTERMETALLICS
Publisher:	ELSEVIER SCI LTD
Additional Information:	Copyright for this article belongs to ELSEVIER SCI LTD, ENGLAND
Keywords:	Intermetallics, miscellaneous;Laves phases;Diffusion;Phase diagrams;Defects:point defects
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	21 Feb 2013 10:05
Last Modified:	21 Feb 2013 10:05
URI:	http://eprints.iisc.ac.in/id/eprint/45840

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