Fabrication of Carbon Nanotube Reinforced Boron Carbide Composite by Hot-Pressing Following Extrusion Molding

Tomohiro Kobayashi; Katsumi Yoshida; Toyohiko Yano

doi:10.4028/www.scientific.net/KEM.616.27

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 616Fabrication of Carbon Nanotube Reinforced Boron...

Fabrication of Carbon Nanotube Reinforced Boron Carbide Composite by Hot-Pressing Following Extrusion Molding

Abstract:

The CNT/B₄C composite with Al₂O₃ additive was fabricated by hot-pressing following extrusion molding of a CNT/B₄C paste, and mechanical properties of the obtained composite were investigated. Many CNTs in the composite aligned along the extrusion direction from SEM observation. 3-points bending strength of the composite was slightly lower than that of the monolithic B₄C. Elastic modulus and Vickers hardness of the composite drastically decreased with CNT addition. Fracture toughness of the composite was higher than that of the monolithic B₄C.

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Periodical:

Key Engineering Materials (Volume 616)

Pages:

27-31

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.616.27

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Online since:

June 2014

Authors:

Tomohiro Kobayashi*, Katsumi Yoshida, Toyohiko Yano

Keywords:

Boron Carbide, Carbon Nanotube (CN), Composite, Mechanical Property

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