Fabrication of hot pressed C/Si3N4 nanocomposites

Cs Balázsi*, F. S. Cinar, M. E. Cura, A. Yesilcubuk, O. Addemir, F. Wéber

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)

Abstract

Silicon nitride based nanocomposites have been manufactured by carbon black addition. Hot pressing sintering method has been applied for composite processing. A low (20 bar) and a high (400 bar) uniaxial pressure have been used. The amount of carbon black introduced in silicon nitride matrix increased the porosity and influenced the bending strength, elastic modulus and hardness of composites. The microstructure of fully dense and porous samples consisted mainly of alpha and beta silicon nitride grains. Inclusions of silicon carbide have been formed by applying a low uniaxial pressure. The silicon carbide phase was not observed at higher uniaxial pressure.

Original languageEnglish
Pages (from-to)435-440
Number of pages6
JournalMaterials Science Forum
Volume473-474
DOIs
Publication statusPublished - 2005
Externally publishedYes
Event4th Hungarian Conference on Materials Science, Testing and Informatics - Balatonfured, Hungary
Duration: 12 Oct 200314 Oct 2003

Keywords

  • C/SiN
  • Mechanical properties
  • Nanocomposite
  • Porosity
  • SiC

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