Chemical Diffusion Experiments in AlNiCe-Melts

Abstract:

The long-capillary method was used to measure chemical diffusion in molten AlNiCe alloys. The interdiffusion coefficients were determined for a mean concentration of Al87Ni10Ce3 at 1273 K and for a mean concentration of Al77Ni20Ce3 at 1373 K. The absence of major convection disturbances and of macro-segregation was demonstrated by time-dependent diffusion measurements. An in-situ x-ray monitoring technique for real-time concentration profile determination is presented.

• Periodical: Materials Science Forum (Volume 508)
• Pages: 567-572
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.508.567
• Online since: March 2006
• Authors: Axel Griesche, F. Garcia-Moreno, M.P. Macht, Günter Frohberg
• Keywords: Aluminum (Al), Cerium, Convection, Diffusion, In Situ, Melt, Nickel Ni, Radioscopy, X-Ray

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