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Journal of Materials Science

, Volume 43, Issue 21, pp 6912–6919 | Cite as

Preparation of NiAl–TiC nanocomposite by mechanical alloying

  • M. Zakeri
  • M. R. Rahimipour
  • A. Khanmohammadian
Article

Abstract

NiAl–TiC nanocomposite was successfully synthesized via a ball-milled mixture of Ni, Al, Ti, and graphite powders. The structural and morphological evolutions of the powders were studied by X-ray diffraction (XRD) and scanning electron microscopy (SEM), respectively. Results show that NiAl–TiC composite was obtained after 6 h of milling. The mean grain sizes of 6 and 10 nm were attained for NiAl and TiC at the end of milling, respectively. An annealing of 3 h milled sample at 600 °C led to the formation of Ni (Al, Ti, C) solid solution. NiAl–TiC nanocomposite that was formed in the 12 h milled sample is stable during an annealing at 600 °C. The mean grain size of NiAl at the 12 h milled powder increased during annealing at 600 °C. Maximum micro hardness value of 870 kg/mm2 (8.7 GPa) was acquired from the 12 h milled powder. SEM images and particle size measurement showed that very fine spheroid particles (1 μm) were procured at the end of milling.

Keywords

Milling NiAl Ni3Al Mechanical Alloy Select Area Diffraction Pattern 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  • M. Zakeri
    • 1
  • M. R. Rahimipour
    • 2
  • A. Khanmohammadian
    • 1
  1. 1.Ceramic DepartmentIslamic Azad University (Saveh Branch)SavehIran
  2. 2.Ceramic DepartmentMaterials and Energy Research CenterTehranIran

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