Tribological and strength properties of alumina/multi-walled carbon nanotube composites

G. Yamamoto, K. Yokomizo, M. Omori, Y. Aizawa, T. Hashida

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


The Al2O3/MWCNT composites with MWCNT content up to 10 mass% have been prepared by spark plasma sintering. The effect of MWCNT addition on the tribological and strength properties was investigated. The experimental results revealed that the steady-state friction coefficient (μ) of the composites decreased with increasing up to 4 mass% MWCNT and stayed constant (μ=0.33) with further addition of MWCNT, which value was substantially lower than that of MWCNT-free monolithic Al2O 3 (μ=0.57). These properties seem to be related to the formation of MWCNT-derived transferred film made up of carbonaceous material during sliding. However, it has not been demonstrated that the presence of MWCNTs improves the fracture strength and fracture toughness of the composites. It is mainly due to the agglomeration of MWCNTs and the weak interface between MWCNTs and the Al2O3 matrix.

Original languageEnglish
Title of host publicationWATER DYANMICS
Subtitle of host publication4th International Workshop on Water Dynamics
Number of pages5
Publication statusPublished - 2007
Event4th International Workshop on Water Dynamics - Sendai, Japan
Duration: 2006 Nov 72006 Nov 8

Publication series

NameAIP Conference Proceedings
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616


Conference4th International Workshop on Water Dynamics


  • Alumina
  • Multi-walled carbon nanotube
  • Spark plasma sintering
  • Strength properties
  • Tribological properties


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