Fabrication and Fracture Toughness of CNTs/Alumina Composites with Fine Microstructures

Naoki Ueda; Tomohiko Yamakami; Tomohiro Yamaguchi; Morinobu Endo; Naoto Saito; Seiichi Taruta

doi:10.4028/www.scientific.net/KEM.617.205

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 617Fabrication and Fracture Toughness of CNTs/Alumina...

Fabrication and Fracture Toughness of CNTs/Alumina Composites with Fine Microstructures

Abstract:

Thin carbon nanotubes (CNTs) were heated at 2800°C to heighten the crystallinity of the CNTs. The microstructures and fracture toughness of the thin CNTs and the heat-treated thin CNTs/alumina composites were investigated. Using such thin CNTs was effective for obtaining finer microstructures of the composites but the heat-treatment made the uniform dispersion of the CNTs difficult. The composites containing the heat-treated thin CNTs showed higher fracture toughness than those containing the thin CNTs and the thick CNTs used in previous study when their content was the same.

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Periodical:

Key Engineering Materials (Volume 617)

Pages:

205-208

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.617.205

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Online since:

June 2014

Authors:

Naoki Ueda*, Tomohiko Yamakami, Tomohiro Yamaguchi, Morinobu Endo, Naoto Saito, Seiichi Taruta

Keywords:

Alumina, Carbon Nanotube (CN), Composite, Fracture Toughness, Microstructure

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