Measurements of carbon nanotube tensile strength and mechanical properties of carbon nanotube/alumina composites prepared by pressureless sintering

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

1 Citation (Scopus)

Abstract

In this research, the effects of MWCNT addition on mechanical properties of pressureless sintered MWCNT/alumina composites were investigated by using four types of MWCNTs having different nanostructures and fracture characteristics. Tensile-loading experiments revealed that there was an optimal annealing temperature for improving the fracture properties of MWCNTs. MWCNTs treated at 1800°C, 2200°C and 2600°C displayed enhancements to their nominal tensile strengths by factors of ∼5.3, ∼5.2 and ∼1.8, respectively, compared to MWCNTs treated at 1200°C. Fracture tests of MWCNT/alumina composites showed that the MWCNTs annealed at 2200°C was the most effective in improving the bending strength and fracture toughness of the MWCNT/alumina composites. These experimental results implied the effectiveness of the use of MWCNTs having a much higher load carrying capacity for preparation of tougher ceramic composites.

Original languageEnglish
Title of host publicationECCM 2012 - Composites at Venice, Proceedings of the 15th European Conference on Composite Materials
PublisherEuropean Conference on Composite Materials, ECCM
ISBN (Print)9788888785332
Publication statusPublished - 2012
Event15th European Conference on Composite Materials: Composites at Venice, ECCM 2012 - Venice, Italy
Duration: 2012 Jun 242012 Jun 28

Publication series

NameECCM 2012 - Composites at Venice, Proceedings of the 15th European Conference on Composite Materials

Other

Other15th European Conference on Composite Materials: Composites at Venice, ECCM 2012
CountryItaly
CityVenice
Period12/6/2412/6/28

Keywords

  • Carbon nanotubes
  • Composites
  • Mechanical properties
  • Pressureless sintering

ASJC Scopus subject areas

  • Ceramics and Composites

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