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VIBRATION EFFECTS ON THE FABRICATION AND THE INTERFACE OF Al–SiC COMPOSITE PRODUCED BY THE PRESSURELESS INFILTRATION METHOD

Author

Listed:
  • SETARE ELAHINEJAD

    (Department of Materials Science, Faculty of Engineering, University of Shahrekord, Shahrekord, Iran)

  • HASSAN SHARIFI

    (Department of Materials Science, Faculty of Engineering, University of Shahrekord, Shahrekord, Iran)

  • MOHAMAD REZA NASRESFAHANI

    (Department of Materials Science, Faculty of Engineering, University of Shahrekord, Shahrekord, Iran)

Abstract

In this study, an infiltrated Al/SiC composite was fabricated by the pressureless vibration method. Porous silicon carbide preforms with the pore size of 10, 20 and 30ppi were used as the reinforcement. The molten aluminum–magnesium alloy was infiltrated into the preforms at 650∘C and 850∘C. The investigation showed complete infiltration at 650∘C, but infiltration at 850∘C broke the oxidation layer and improved the composite quality. Scaning electron microscopy (SEM) micrographs showed the creation of a good interface and connection between the matrix and the reinforcement. EDS analysis also showed spinel phase (MgAl2O4) had been formed in the interface. This phase was formed due to a reaction against Al2O3 in the reinforcements and MgO. The possibility of the formation of MgAl2O4 phase and the wettability between the metal matrix and ceramic reinforcement was enhanced with increasing the temperature.

Suggested Citation

  • Setare Elahinejad & Hassan Sharifi & Mohamad Reza Nasresfahani, 2018. "VIBRATION EFFECTS ON THE FABRICATION AND THE INTERFACE OF Al–SiC COMPOSITE PRODUCED BY THE PRESSURELESS INFILTRATION METHOD," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 25(04), pages 1-7, June.
    • Handle: RePEc:wsi:srlxxx:v:25:y:2018:i:04:n:s0218625x18500890
    DOI: 10.1142/S0218625X18500890
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