Tribological and electrical properties of ceramic matrix composites with carbon nanotubes

Pavol Hvizdoš, Viktor Puchý, Annamária Duszová, Ján Dusza, C. Balázsi

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

Tribological behaviur of carbon fibrous phases (nanofibers and nanotubes) containing composites with Si 3N 4, ZrO 2 and Al 2O 3 matrices was studied by pin-on-disk technique in conditions of dry sliding. Coefficients of friction and wear rates were measured, wear damage mechanisms were observed and identified. The resulting tribological behaviur was related to microstructure and mechanical properties of respective materials. Electrical conductivity was measured in wide range of frequencies by two-point method and effect of volume fraction and distribution of CNTs and CNFs on percolation threshold was evaluated. Both coefficient of friction and electrical resistivity decreased with increasing amount of carbon phases, in both cases the nanofibers were more efficient than the nanotubes. The wear resistance in most cases decreased but for Si 3N 4-CNT composite a certain optimum (∼5 wt.% CNT) was found.

Original languageEnglish
Pages (from-to)5669-5676
Number of pages8
JournalCeramics International
Volume38
Issue number7
DOIs
Publication statusPublished - Sep 2012

Fingerprint

Ceramic matrix composites
Carbon Nanotubes
Nanofibers
Nanotubes
Carbon nanotubes
Electric properties
Carbon
Wear of materials
Friction
Composite materials
Wear resistance
Volume fraction
Mechanical properties
Microstructure
Electric Conductivity

Keywords

  • B. Nanocomposites
  • C. Electrical conductivity
  • C. Friction
  • C. Wear resistance
  • Nanotubes

ASJC Scopus subject areas

  • Ceramics and Composites
  • Process Chemistry and Technology
  • Electronic, Optical and Magnetic Materials
  • Surfaces, Coatings and Films
  • Materials Chemistry

Cite this

Tribological and electrical properties of ceramic matrix composites with carbon nanotubes. / Hvizdoš, Pavol; Puchý, Viktor; Duszová, Annamária; Dusza, Ján; Balázsi, C.

In: Ceramics International, Vol. 38, No. 7, 09.2012, p. 5669-5676.

Research output: Contribution to journalArticle

Hvizdoš, Pavol ; Puchý, Viktor ; Duszová, Annamária ; Dusza, Ján ; Balázsi, C. / Tribological and electrical properties of ceramic matrix composites with carbon nanotubes. In: Ceramics International. 2012 ; Vol. 38, No. 7. pp. 5669-5676.
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