Tribological properties of hot-pressed alumina-CNT composites

J. W. An, D. H. You, D. S. Lim

Research output: Contribution to journalArticlepeer-review

177 Citations (Scopus)

Abstract

Carbon nanotubes (CNTs) have lately attracted remarkable attention as reinforcements of materials because of their exceptional mechanical and electronic properties. However, studies on the ceramic-CNT composite have been rarely reported. Alumina-CNT composites have been produced to investigate the effect of carbon nanotube addition on the mechanical and tribological properties by hot-pressing. The alumina-CNT composite powder was prepared by catalytic pyrolysis of acetylene gas with an iron nitrate impregnated alumina. The contents of iron nitrate were controlled from 0 to 0.5 mol.% to change the CNT compositions in the alumina-CNT composite. The microstructures and mechanical properties of hot-pressed composites have been investigated to explain the effect of the CNT compositions on the tribological properties of the alumina reinforced with CNT composites.

Original languageEnglish
Pages (from-to)677-681
Number of pages5
JournalWear
Volume255
Issue number1-6
DOIs
Publication statusPublished - 2003

Keywords

  • Alumina-CNT composite
  • Carbon nanotube (CNT)
  • Tribological property

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

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