Mechanical properties and oxidation resistance of Si3N4-SiC nanocomposites

Young Hag Koh, Hae Won Kim, Hyoun Ee Kim

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)


The addition of SiC nanoparticles and Si3N4 whiskers had significant effects on the microstructure and mechanical properties of Si3N4. Excellent flexural strength, fracture toughness, and high-temperature strength were obtained by adjusting the relative concentration of SiC nanoparticle and Si3N4 whiskers. After oxidation, the flexural strength of the nanocomposite increased by about 40% due to the crystallization of both the oxidation product and the grain boundary by the SiC nanoparticles.

Original languageEnglish
Pages (from-to)2069-2073
Number of pages5
JournalScripta Materialia
Issue number8-9
Publication statusPublished - 2001 May 18
Externally publishedYes


  • Mechanical properties
  • Oxidation resistance
  • SiN whiskers
  • SiN/SiC nanocomoposite

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys


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