Influence of plasma on formation of crystalline Fe2SiO4 grains

T. Sato, M. Kurumada, K. Kamitsuji, O. Kido, H. Suzuki, M. Shintaku, Yuki Kimura, Y. Saito, C. Kaito

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


The production of Fe2SiO4 (fayalite) crystalline grains was performed by two processes, namely, grain formation in a plasma field by evaporating a mixture powder of Fe and SiO and heat treatment of the product collected on the radio-frequency (RF) electrode side. Fe grains <20 nm in size covered with an amorphous SiO layer selectively formed Fe2SiO4 grains by heating at 800 °C. By heating at 600 °C, in addition to the formation of Fe2SiO4 crystal grains, the FeO phase appeared. The doping effect of excited oxygen in a plasma field into the Fe small grains may be the trigger on the formation of fayalite through the FeO phase formation. The present experimental result suggests that the probability of Fe2SiO4 grain formation in space is low.

Original languageEnglish
Pages (from-to)612-616
Number of pages5
JournalPlanetary and Space Science
Issue number6
Publication statusPublished - 2006 May 1


  • Composition
  • Dust particle
  • Dusty plasma
  • Grain size
  • Laboratory experiments

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science


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