Silicon nitride composites with different nanocarbon additives

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

This paper explores the use of a variety of carbon nanoparticles to impart electrical, thermal conductivity, good frictional properties to silicon nitride matrices. We used the highly promising types of carbon as carbon nanotubes, exfoliated graphene and carbon black nanograins. A high-efficiency attritor mill has also been used for proper dispersion of second phases in the matrix. The sintered silicon nitride composites retained the mechanical robustness of the original systems. Bending strength as high as 700 MPa was maintained and an electrical conductivity of 10 S/m was achieved in the case of 3 wt% multiwall carbon nanotube addition. Electrically conductive silicon nitride ceramics were realized by using carbon nanophases. Examples of these systems, methods of fabrication, electrical percolation, mechanical, thermal and tribological properties are discussed.

Original languageEnglish
Pages (from-to)352-362
Number of pages11
JournalJournal of the Korean Ceramic Society
Volume49
Issue number4
DOIs
Publication statusPublished - Jul 2012

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Silicon nitride
Carbon Nanotubes
Carbon
Carbon nanotubes
Composite materials
Soot
Graphite
Carbon black
Bending strength
Graphene
Thermal conductivity
Nanoparticles
Fabrication
silicon nitride

Keywords

  • Carbon black
  • Carbon nanotubes
  • Graphene
  • Milling
  • Silicon nitride

ASJC Scopus subject areas

  • Ceramics and Composites

Cite this

Silicon nitride composites with different nanocarbon additives. / Balázsi, Csaba.

In: Journal of the Korean Ceramic Society, Vol. 49, No. 4, 07.2012, p. 352-362.

Research output: Contribution to journalArticle

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