Advertisement

Metallography, Microstructure, and Analysis

, Volume 6, Issue 6, pp 619–622 | Cite as

Effect of Sample Preparation on the Microstructural Evaluation of Al–GNPs Nanocomposites

  • Abdollah Saboori
  • Matteo Pavese
  • Claudio Badini
  • Paolo Fino
Technical Article

Abstract

Metallography is a key characterization method which can be affected by different variables. In aluminum–graphene nanoplatelet nanocomposites, mechanical interlocking is the main interfacial bonding. During the standard polishing, graphene nanoplatelets are removed leaving microvoids, and consequently in the microstructure of samples after sintering, two types of microvoids are revealed: one corresponding to the lack of sintering and another to the location of graphene which is removed during the polishing step. Thus, in this work a different polishing route is recommended to avoid the formation of the polishing related microvoids.

Keywords

Metallography Aluminum Graphene nanoplatelets Characterization 

References

  1. 1.
    A. Saboori, C. Novara, M. Pavese, C. Badini, F. Giorgis, P. Fino, An investigation on the sinterability and the compaction behavior of aluminum/graphene nanoplatelets (GNPs) prepared by powder metallurgy. J. Mater. Eng. Perform. 26, 993–999 (2017). doi: 10.1007/s11665-017-2522-0 CrossRefGoogle Scholar
  2. 2.
    T. Huber, H.P. Degischer, G. Lefrance, T. Schmitt, Thermal expansion studies on aluminium-matrix composites with different reinforcement architecture of SiC particles. Compos. Sci. Technol. 66, 2206–2217 (2006). doi: 10.1016/j.compscitech.2005.12.012 CrossRefGoogle Scholar
  3. 3.
    A.H. Castro Neto, F. Guinea, N.M.R. Peres, K.S. Novoselov, A.K. Geim, The electronic properties of graphene. Rev. Mod. Phys. 81, 109–162 (2009)CrossRefGoogle Scholar
  4. 4.
    M. Rashad, F. Pan, Z. Yu, M. Asif, Investigation on microstructural, mechanical and electrochemical properties of aluminum composites reinforced with graphene nanoplatelets. Prog. Nat. Sci. Mater. Int. 25, 460–470 (2015)CrossRefGoogle Scholar
  5. 5.
    J. Wang, Z. Li, G. Fan, H. Pan, D. Zhang, Reinforcement with graphene nanosheets in aluminum matrix composites. Sci. Mater. 66, 594–597 (2012)CrossRefGoogle Scholar
  6. 6.
    A. Saboori, M. Pavese, C. Badini, P. Fino, Microstructure and thermal conductivity of Al-Graphene composites fabricated by powder metallurgy and hot rolling techniques. Acta Metall. Sin. (English Lett.) (2017). doi: 10.1007/s40195-017-0579-2 Google Scholar

Copyright information

© Springer Science+Business Media, LLC and ASM International 2017

Authors and Affiliations

  • Abdollah Saboori
    • 1
  • Matteo Pavese
    • 1
  • Claudio Badini
    • 1
  • Paolo Fino
    • 1
  1. 1.Department of Applied Science and TechnologyPolitecnico Di TorinoTurinItaly

Personalised recommendations