Simultaneous synthesis of TiNSi3N4composite powders from TiSi2in NH3atmosphere

Hanan Alhussain, Takuto Mise, Kohei Kobayashi, Hajime Kiyono

Research output: Contribution to journalArticlepeer-review

Abstract

The NH3 nitriding process of TiSi2 micrometer-sized powders were investigated in this paper. TiSi2 powders were heat-treated under NH3 flow in a temperature range of 1, 100 to 1, 300 °C. The composition and morphology of the resulting composites were characterized by X-ray powder diffraction, scanning electron microscopy with energy-dispersive X-ray spectroscopy, and transmission electron microscopy. Under NH3 flow, TiSi2 grains were first transformed into TiN and Si. Subsequently, Si was transformed into Si3N4 and SiO2 fibers. From this process, mixed materials comprising TiN particles with Si3N4 fibers were obtained.

Original languageEnglish
Pages (from-to)677-684
Number of pages8
JournalJournal of the Ceramic Society of Japan
Volume128
Issue number10
DOIs
Publication statusPublished - 2020 Oct

Keywords

  • Ammonia
  • Nitridation
  • Silicon nitride
  • Titanium nitride
  • Titanium silicide

ASJC Scopus subject areas

  • Ceramics and Composites
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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