Preparation of SiC/Si 3N 4 composites with rod-like microstructure by combustion synthesis

  • Ting Guo
  • , Haibo Jin
  • , Yuan Hua Lin*
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

SiC/Si 3N 4 composites with rod-like microstructure were successfully prepared from a mixture of Dy 2O 3, amorphous carbon (carbon black) and Si powder in static N 2 atmosphere using combustion synthesis (CS) in combination with a controlled pre-reaction mechanical activation treatment. The results showed that a large number of crystals with rod-like microstructure which were made of SiC and Si 3N 4 appeared in the product. The present work demonstrated that Dy 2O 3 is a good additive for the preparation of SiC/Si 3N 4 composites with rod-like microstructure, and the pressure of N 2 is also an important factor.

Original languageEnglish
Pages (from-to)410-414
Number of pages5
JournalPowder Technology
Volume224
DOIs
Publication statusPublished - Jul 2012

Keywords

  • Carbon
  • Combustion synthesis
  • Composites
  • Rod-like
  • Si N
  • SiC

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