Microstructure and fracture behavior of hot-pressed TiC Si3N4 composites

Hung Liang Chiu, Jow Lay Huang

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Silicon nitride containing various compositions of TiC were hot-pressed at 1800°C for 1 h in a nitrogen atmosphere. The grain growth was inhibited and the aspect ratio was slightly decreased with the addition of TiC. Cracks were often observed cleavaging along preferred orientations inside TiC with large deflected angles. Typical secondary brittle fracture patterns were observed inside TiC with fracture initiated near the TiC surface. Fracture toughness was enhanced by 30% with the addition of 20% vol TiC.

Original languageEnglish
Pages (from-to)49-55
Number of pages7
JournalCeramics International
Volume20
Issue number1
DOIs
Publication statusPublished - 1994

All Science Journal Classification (ASJC) codes

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

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