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A Self-propagating high-temperature synthesis process for the fabrication of Fe(Cr)–Al2O3 nanocomposite

  • Seyed Esmaiel Shakib
  • Ramin RaiszadehEmail author
  • Jalil Vahdati-Khaki
Article
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Abstract

Self-propagating high-temperature synthesis (SHS) was used to fabricate a Fe(Cr)-Al2O3 nanocomposite. The composite was fabricated by the reactions between the powders of Fe, Fe2O3, Cr2O3, and Al. The effect of blending ratio and mechanical activation of the initial powders and the precursor compressing pressure on the microstructure of the final product was studied by optical microscopy, scanning electron microscopy, transmission electron microscopy, and X-ray diffraction. The significance of the effect of each of the aforementioned parameters on the quality of the composite (assessed by measuring the compressive strength and wear resistance) was determined using a full-factorial design of experiments method. The results showed that the best molar powder ratio that produced the most homogeneous product through a sustainable SHS reaction was Fe:Fe2O3:Cr2O3:Al = 10:1:1:4. A lower Fe content caused the Fe(Cr) phase to melt and separate from the rest of the materials.

Keywords

self-propagating high temperature synthesis phase separation mechanical activation iron-chrome nanocomposite 

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Copyright information

© University of Science and Technology Beijing and Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Seyed Esmaiel Shakib
    • 1
    • 2
  • Ramin Raiszadeh
    • 1
    Email author
  • Jalil Vahdati-Khaki
    • 2
  1. 1.Department of Metallurgy and Materials Science, School of EngineeringShahid Bahonar University of KermanKermanIran
  2. 2.Department of Materials Science and Metallurgical Engineering, Engineering FacultyFerdowsi University of MashhadMashhadIran

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