Novel aluminum-carbon materials

Iwona Jasiuk, Sabrina Nilufar, Lourdes Salamanca-Riba, Romaine Isaacs, Sid Siddiqi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We characterize novel metal carbon materials called covetics. More specifically we study a warm-rolled aluminum alloy (Al 7075) with up to 5 wt% of carbon infused during processing. At the macroscale, we measured mechanical properties: Young's modulus, ultimate tensile strength (UTS), 0.2% yield strength (YS), and tensile elongation at failure. At the mesoscale, we measured Rockwell and Vickers hardness, and, at the microscale, we measured local elastic modulus and hardness using a nanoindentation technique. In parallel, we characterized the microstructure of these materials at different structural scales using scanning electron microscopy (SEM) and transmision electron microscopy (TEM). The following enhancements in properties over the corresponding base materials were observed: 1. higher strength (UTS, YS) 2. higher hardness (Rockwell, Vickers and nanoindentation) 3. larger elongation, and 4. lower density, as carbon content increased. In summary, the results show that Al 7075 covetics exhibit superior mechanical properties to the corresponding base metals, which makes them very good candidates for range of engineering applications.

Original languageEnglish (US)
Title of host publicationTechnical Proceedings of the 2013 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2013
Pages27-30
Number of pages4
Volume1
StatePublished - 2013
EventNanotechnology 2013: Advanced Materials, CNTs, Particles, Films and Composites - 2013 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2013 - Washington, DC, United States
Duration: May 12 2013May 16 2013

Other

OtherNanotechnology 2013: Advanced Materials, CNTs, Particles, Films and Composites - 2013 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2013
CountryUnited States
CityWashington, DC
Period5/12/135/16/13

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Keywords

  • Covetic
  • Metal-matrix composite
  • Nanocarbon
  • Nanomaterial

ASJC Scopus subject areas

  • Biotechnology

Cite this

Jasiuk, I., Nilufar, S., Salamanca-Riba, L., Isaacs, R., & Siddiqi, S. (2013). Novel aluminum-carbon materials. In Technical Proceedings of the 2013 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2013 (Vol. 1, pp. 27-30)