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Diffusion in Co-Ni System Studied by Multifoil Technique

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Abstract:

Diffusion couple experiments were performed in the Co-Ni binary system for determining inter-, impurity- and intrinsic-diffusion coefficients in the temperature range of 1050 - 1250°C. The activation energy and pre-exponential factor estimated for interdiffusion do not vary significantly with composition. The activation energy calculated for impurity diffusion experiments shows is higher than . Intrinsic diffusion coefficients estimated from the multifoil experiment show that Ni is the fastest diffusing species in this system.

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Diffusion in Solids and Liquids VI View Preview

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Periodical:

Defect and Diffusion Forum (Volumes 312-315)

Pages:

466-471

DOI:

https://doi.org/10.4028/www.scientific.net/DDF.312-315.466

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Online since:

April 2011

Authors:

V.D. Divya, U. Ramamurty, Aloke Paul

Keywords:

Diffusion, Multifoil Technique, Ni-Co System

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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