Effects of various reducing agents on the synthesis of Si3N4 whiskers from diatomaceous earth

Yukako Mizuhara, Masao Noguchi, Tatsumi Ishihara, Yusaku Takita

Research output: Contribution to journalArticle

Abstract

Diatomaceous earth were subjected to carbothermal reduction and nitridation in a flow of nitrogen containing various reducing agents; NH3, H2, CO, and CH4. It was found that a carbon plate or mathane are capable of reducing SiO2, but neither H2 nor CO. The effect of addition of powdered carbon to diatomaceous earth was also studied. Results were obtained in terms of the yields both outside and inside the whiskers.

Original languageEnglish
Pages (from-to)640-645
Number of pages6
JournalJournal of the Ceramic Society of Japan. International ed.
Volume102
Issue number7
Publication statusPublished - Jul 1994
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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