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, Volume 11, Issue 2, pp 643–649 | Cite as

Development of the Properties of Al/SiC Nano-Composite Fabricated by Stir Cast Method by Means of Coating SiC Particles with Al

  • Omid YaghobizadehEmail author
  • Hamid Reza Baharvandi
  • Ali Reza Ahmadi
  • Ermia Aghaei
Original Paper

Abstract

Due to the excellent properties of Al-SiC nanocomposite like high strength to weight ratio, excellent corrosion and erosion resistance, it has attracted a great attention of the automotive, military and aerospace industries. Stir casting is one of the desired techniques in order to fabricate this kind of composites. As the SiC particles in the Al melt do not have a desired wettability so there would be a high possibility of occurring the pernicious chemical reactions at the Al-Si interface. In this study, in order to get over these problems, SiC particles were coated by aluminum. To do so, SiC particles with the various volume fractions ranging from 0% to 5% were added to the circulating melted aluminum mixture. Then, microstructure of the composite were evaluated using the scanning electron microscopy (SEM). Moreover, X-ray diffraction (XRD) analysis was employed to evaluate the composites composition. The XRD results revealed that Al4C3 phase (as a pernicious phase) was not detected. In addition, the SEM images depicted a homogenous distribution of the coated SiC nanoparticles in the Al matrix. The results of the mechanical tests revealed that, the tensile strength and stiffness of the specimens consisting of the coated SiC particles were higher than that of the specimen consisting the uncoated SiC particles.

Keywords

Metal matrix composites Stir cast Aluminum SiC nano-particle 

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Copyright information

© Springer Science+Business Media B.V., part of Springer Nature 2018

Authors and Affiliations

  • Omid Yaghobizadeh
    • 1
    Email author
  • Hamid Reza Baharvandi
    • 2
  • Ali Reza Ahmadi
    • 2
  • Ermia Aghaei
    • 3
  1. 1.Department of Materials EngineeringImam Khomeini International UniversityQazvinIran
  2. 2.Department of Materials Science and EngineeringMalek Ashtar University of TechnologyTehranIran
  3. 3.Department of Chemical and Materials EngineeringUniversity of AlbertaEdmontonCanada

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