ICAMS / Interdisciplinary Centre for Advanced Materials Simulation
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Particle size distribution and composition in phase-separated Cu75Co25 alloys under various magnetic fields

Y. Zhang, J. Gao, H. Yasuda, M. Kolbe, G. Wilde.

Scripta Materialia, Pergamon-Elsevier Science Ltd., Oxford, 82, 5-8, (2014)

Abstract
The size distribution and composition of Co-rich particles in phase-separated Cu75Co25 alloys under magnetic fields of up to 4 T were investigated. The results indicate that forced convective flow is suppressed effectively under a suitable magnetic field, whereas the thermoelectric magnetic convection under a high magnetic field cannot be neglected. The diffusive growth of Co-rich particle has a strong relation with the undercooling and a weak dependence on the magnetic field. The magnetic field does not alter the asynchronous crystallization behavior of Co-rich particles.


Keyword(s): undercooling; phase separation; particle size distribution; magnetic field
DOI: 10.1016/j.scriptamat.2014.03.003
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