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Diffusion layer growth at Zn/Cu interface under uniform and gradient high magnetic fields
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2008 (English)In: Materials Science & Engineering: A, ISSN 0921-5093, Vol. 495, no 1-2, 244-248 p.Article in journal (Refereed) Published
Abstract [en]

As a common phenomenon occurring in many material processes, diffusion may induce significant changes in composition and microstructure near the interface. In the present study, liquid/solid (Zn/Cu) interface diffusion experiments in high magnetic fields (up to 12 T) were conducted and the thickness changes of diffusion layer under different magnetic field conditions were examined. It was found that there were no noticeable effects of high magnetic fields on the formation of intermetallic phases at the interface. However, the magnetic flux density exerted a non-linear influence on the diffusion layer thickness. This phenomenon should be attributed to the effect of magnetic fields suppressing natural convection and inducing thermo-electromagnetic convection. In addition, the diffusion of Zn into Cu could be retarded by a magnetic field gradient. These results indicate that both the strength and the gradient of high magnetic fields can be used to control the diffusion behavior.

Place, publisher, year, edition, pages
2008. Vol. 495, no 1-2, 244-248 p.
Keyword [en]
Diffusion, Liquid/solid, Interface, Convection, High magnetic fields
National Category
Metallurgy and Metallic Materials
URN: urn:nbn:se:kth:diva-38051DOI: 10.1016/j.msea.2007.10.096ISI: 000260545900042ScopusID: 2-s2.0-50949088163OAI: diva2:436278
5th International Conference on High Temperature Capillarity Location: Alicante, SPAIN Date: MAR 21-24, 2007 Available from: 2011-08-23 Created: 2011-08-22 Last updated: 2011-08-23Bibliographically approved

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Nakajima, Keiji
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Applied Process Metallurgy
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