Mechanically activated combustion synthesis of β-Si 6-zAlzOzN8-z (z = 1-4)

Kazuhiko Aoyagi, Takehito Hiraki, Ramasamy Sivakumar, Toshiyuki Watanabe, Tomohiro Akiyama

Research output: Contribution to journalArticlepeer-review

33 Citations (Scopus)

Abstract

Fine β-sialon (Si6-zAlzOzN 8-z, 1<z<4) was prepared by mechanical-activated combustion synthesis (CS) using raw materials such as Si, Al, and SiO2 in a nitriding atmosphere of 1 MPa. Mechanical activation by planetary milling for only 18 min led to the formation of β-sialon after combustion synthesis. Comparative experiments with ball milling showed that the relative amount of β-sialon was considerably increased to 66% when planetary milled to 18 min after CS. The raw material Si was replaced by waste Si of 94.8 mass% in purity, and was combustion synthesized successfully under the same processing parameters for cost-effective measures.

Original languageEnglish
Pages (from-to)626-628
Number of pages3
JournalJournal of the American Ceramic Society
Volume90
Issue number2
DOIs
Publication statusPublished - 2007 Feb

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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