Microstructure of Si3N4 whisker prepared from diatomaceous earth

Yukako Mizuhara, Masao Noguchi, Tatsumi Ishihara, Yusaku Takita, Toru Shiomitsu, Hiromichi Arai

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


Silicon nitride whiskers were prepared by carbothermal reduction and nitridation of diatomaceous earth at temperature of 1350°C under the presence of nitrogen and ammonia. Scanning and transmission electron microscopy (SEM), electron probe micro-analysis (TEM) and X-ray diffraction were used to characterize the microstructure. SEM studies indicated that the whiskers were quite straight and hexagonal in cross-section. The whiskers were found to be highly crystalline, as determined by TEM analysis.

Original languageEnglish
Pages (from-to)111-116
Number of pages6
JournalJournal of the European Ceramic Society
Issue number2
Publication statusPublished - 1993
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry


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