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Graphene tweaking Hamaker constant of SiC nanoparticles: A new horizon to solve the conflict between strengthening and toughening

Journal Article


Abstract


  • This study reveals a promising feature of graphene encapsulating process to significantly enhance the mutually inclusive tensile strength and ductility of aluminium based composites using the semi-solid powder forming process. It was corroborated based on van der Waals-Casimir interaction free energy that graphene sheets have an unprecedented capacity to manipulate the Hamaker constant of SiC nanoparticles, prompting formation of nano/micro-sized grains. Authenticating by the strengthening model, fractographic observations have also demonstrated the unique functionality of graphene sheets in strengthening via grain refining, thermally enhanced dislocations, shear-lag, geometrically necessary dislocations, crack bridging and fibre pull out mechanisms.

Authors


  •   Fadavi Boostani, Alireza (external author)
  •   Tahamtan, S (external author)
  •   Yazdani, Siamak (external author)
  •   Azari Khosroshahi, R (external author)
  •   Wei, D (external author)
  •   Sahamirad, H (external author)
  •   Zhang, Xiaoming (external author)
  •   Jiang, Zhengyi

Publication Date


  • 2016

Citation


  • Fadavi Boostani, A., Tahamtan, S., Yazdani, S., Azari Khosroshahi, R., Wei, D., Sahamirad, H., Zhang, X. M. & Jiang, Z. Y. (2016). Graphene tweaking Hamaker constant of SiC nanoparticles: A new horizon to solve the conflict between strengthening and toughening. Scripta Materialia, 118 65-69.

Scopus Eid


  • 2-s2.0-84961904266

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/5575

Number Of Pages


  • 4

Start Page


  • 65

End Page


  • 69

Volume


  • 118

Abstract


  • This study reveals a promising feature of graphene encapsulating process to significantly enhance the mutually inclusive tensile strength and ductility of aluminium based composites using the semi-solid powder forming process. It was corroborated based on van der Waals-Casimir interaction free energy that graphene sheets have an unprecedented capacity to manipulate the Hamaker constant of SiC nanoparticles, prompting formation of nano/micro-sized grains. Authenticating by the strengthening model, fractographic observations have also demonstrated the unique functionality of graphene sheets in strengthening via grain refining, thermally enhanced dislocations, shear-lag, geometrically necessary dislocations, crack bridging and fibre pull out mechanisms.

Authors


  •   Fadavi Boostani, Alireza (external author)
  •   Tahamtan, S (external author)
  •   Yazdani, Siamak (external author)
  •   Azari Khosroshahi, R (external author)
  •   Wei, D (external author)
  •   Sahamirad, H (external author)
  •   Zhang, Xiaoming (external author)
  •   Jiang, Zhengyi

Publication Date


  • 2016

Citation


  • Fadavi Boostani, A., Tahamtan, S., Yazdani, S., Azari Khosroshahi, R., Wei, D., Sahamirad, H., Zhang, X. M. & Jiang, Z. Y. (2016). Graphene tweaking Hamaker constant of SiC nanoparticles: A new horizon to solve the conflict between strengthening and toughening. Scripta Materialia, 118 65-69.

Scopus Eid


  • 2-s2.0-84961904266

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/5575

Number Of Pages


  • 4

Start Page


  • 65

End Page


  • 69

Volume


  • 118