Oxidation of rare earth silicon oxynitride J-phases

Junichi Takahashi, Takayuki Suehiro

研究成果: Article査読

抄録

Oxidation behavior of R4Si2O7N2 (J-phase; R = Y and rare-earth element) has been investigated by thermometric measurements in air. All R4Si2O7N2, of which the powder samples are prepared by gas-pressured sintering method under 1 MPa of N2 gas, are oxidized to R2SiO5 with an exothermic reaction in air under an ambient pressure. The oxidation temperature to produce the final oxide increases from c.a. 930 to 1060 °C with decreasing the ionic radii of the rare earth elements.

本文言語English
ページ(範囲)57-59
ページ数3
ジャーナルKey Engineering Materials
403
DOI
出版ステータスPublished - 2009

ASJC Scopus subject areas

  • 材料科学(全般)
  • 材料力学
  • 機械工学

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