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Russian Metallurgy (Metally)

, Volume 2019, Issue 10, pp 1009–1014 | Cite as

Effect of the Thermomechanical Compacting Conditions on the Electrical Conductivity of an Al2O3/Graphene Composite Material

  • A. G. ZholninEmail author
  • A. V. Tenishev
  • V. V. Stolyarov
ADVANCED MATERIALS AND TECHNOLOGIES
  • 6 Downloads

Abstract—The influence of the graphene content (up to 2 wt %) and the sintering conditions on the temperature dependence of the electrical resistance of an Al2O3/graphene composite material in the temperature range 20–1600°C is studied. The composite material is fabricated from a mixture of initial powders by spark plasma sintering and hot pressing. The electrical resistance of the compacted material is found to depend on the pressing force and a heating method. The composite material prepared by hot pressing has the minimum electrical resistivity (0.9 Ω m).

Keywords: nanocomposite material corundum graphene electrical resistance spark plasma sintering 

Notes

FUNDING

This work was supported by the Ministry of Education and Science of the Russian Federation for measuring the electrical resistance (project no. 11.1957.2017/4.6), by the Russian Science Foundation for the SPS preparation of the composite compacts (project no. 16-19-10213), and by National Research Nuclear University MEPhI in terms of the project of increasing the competitive ability of the leading Russian institutes of higher education (project no. 5-100).

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Copyright information

© Pleiades Publishing, Ltd. 2019

Authors and Affiliations

  • A. G. Zholnin
    • 1
    Email author
  • A. V. Tenishev
    • 1
  • V. V. Stolyarov
    • 2
  1. 1.National Research Nuclear University MEPhIMoscowRussia
  2. 2.Blagonravov Institute of Engineering Science, Russian Academy of SciencesMoscowRussia

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