Interaction of Al-Si Alloys with SiC/C Ceramic Particles and their Influence on Microstructure of Composites

Abstract:

Interaction of Al-Si alloys with SiC/C ceramic particles and their influence on microstructure of composites was discussed. This article presents a significant effect of modifying additives introduced into liquid aluminium. As it was shown in the research, Mg and Sr modifiers improve wetting conditions in Al/SiCp+Cp systems, as well as influence the composite’s structure and the structure of the interface between the components. The microstructure observations were performed using light microscopy (OLYMPUS GX 71) and scanning electron microscopy (PHILIPS XL30). Moreover, local analyses of chemical compositions as well as chemical elements mapping were performed using an EDX module for microarea chemical analysis. Based on structural studies, it was found that chemical composition of the aluminium alloy and its modification are equally important parameters.

• Periodical: Solid State Phenomena (Volume 176)
• Pages: 55-62
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.176.55
• Online since: June 2011
• Authors: Anna J. Dolata
• Keywords: Al-Si Alloy, Glassy Carbon Particles, Interaction, Microstructure, Silicon Carbide Particles

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