Effects of metal oxides on the synthesis of Si3N4 whiskers from diatomaceous earth

Yukako Mizuhara, Hiroshi Ono, Masao Noguchi, Tatsumi Ishihara, Yusaku Takita

研究成果: Contribution to journalArticle査読

1 被引用数 (Scopus)

抄録

To determine the effects of metal oxides on the whisker shapes and production yield as well as the role of these oxides in the starting material in trace quantities, diatomaceous earth and high-purity SiO2 were subjected to reduction and nitridation in a flowing mixture of nitrogen and ammonia. The results showed that the growth of outside whiskers was brought about by the vapor-liquid-solid (VLS) mechanism and that Fe is necessary for the growth of the outside whiskers. It was also assumed that manganese and iron oxides present in the diatomaceous earth were reduced to metallic Mn and Fe.

本文言語英語
ページ(範囲)588-594
ページ数7
ジャーナルJournal of the Ceramic Society of Japan. International ed.
102
6
出版ステータス出版済み - 6 1994
外部発表はい

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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