Preparation of Fiberlike Silicon Nitride from Diatomaceous Earth

Yukako Mizuhara, Masao Noguchi, Tatsumi Ishihara, Atsushi Satoh, Katsuto Hiramatsu, Yusaku Takita

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)


Fiberlike Si3N4 was prepared by the carbothermal reduction of diatomaceous earth in a flow of nitrogen and ammonia. Diatomaceous earth, which is an inexpensive raw material, is composed of 82.5 wt% SiO2, 5.69 wt% Al2O3, and a very small amount of metal oxides (K2O, CaO, and Fe2O3). Two types of fiberlike Si3N4 were obtained, short needlelike fiber and woollike fiber with Fe droplets at 1350°C.

Original languageEnglish
Pages (from-to)846-848
Number of pages3
JournalJournal of the American Ceramic Society
Issue number4
Publication statusPublished - Apr 1991
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry


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