Undercooling and demixing of copper-based alloys

M. Kolbe , J. Brillo , I. Egry , D.M. Herlach , L. Ratke , D. Chatain (1) , N. Tinet , C. Antion , L. Battezzati , S. Curiotto , E. Johnson , N. Pryds

1 CRMCN - Centre de recherche de la matière condensée et des nanosciences

Since the beginning of materials science research under microgravity conditions immiscible alloys have been an interesting subject. New possibilities to investigate such systems are offered by containerless processing techniques. Of particular interest is the ternary system Cu-Fe-Co, and its limiting binaries, Cu-Co and Cu-Fe. They all show a metastable miscibility gap in the regime of the undercooled melt. Within the ESA-MAP project "CoolCop", different aspects of this alloy have been investigated; results obtained so far are reported here.

Mots clés: FE-CU; PHASE-SEPARATION; SURFACE-TENSION; SYSTEM; IRON; THERMODYNAMICS; DIAGRAMS

M. Kolbe, J. Brillo, I. Egry, D.M. Herlach, L. Ratke, et al.. Undercooling and demixing of copper-based alloys. Microgravity Science and Technology, 2007, 18 (3-4), pp.174-177. ⟨hal-00143162⟩