Paper number 941

COMPOSITE MATERIALS OF ALUMINIUM/GRANULATED SLAG AND ALUMINIUM/ARC-FURNACE DUST PREPARED BY POWDER METALLURGY TECHNIQUES

A. Torres, J. Miranda, J. García, L. Narváez, R. Hernández1 and O. Domínguez

Instituto de Metalurgia-UASLP, 550 Sierra Leona CP 78210, San Luis Potosi, SLP/Mexico.
1Departamento de Proyectos, Aceros San Luis S. A. de C, V., 440 Eje 114 CP 78090, San Luis Potosi, SLP/Mexico.

Summary The present document provides preliminary results of aluminium metal matrix composites reinforced with granulated slag and electric arc furnace dust. The composites were synthesized using powder metallurgy techniques. Green density of the compacts was determined as a function compacting pressure and reinforcing particles weight per cent. Sintering experiments suggest good densification in Al/granulated-slag composites and slight densification in Al/electric-arc-furnace dust composites. The hardness and compressive strength of the sintering compacts was determined in order to compare the mechanical properties of the composite material as a function of the granulated slag and electric arc furnace dust content. At present, the best results concern the Al/granulated-slag composites, reaching compressive strengths up to 370 MPa.
Keywords recycling, sintering, Al/Granulated-slag composites, Al/EAF-dust composites, hardness, compressive strength.

Theme : Metal Matrix Composites ; Processing and Forming

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