Synthesis of nano-composite powder composed of silica and carbon and characteristic behavior at a high temperature thereof

Norihiro Murakawa, Minghao Wang, Kohei Tatsumi

Research output: Contribution to journalArticle

Abstract

A nano-composite powder composed of silica and carbon with a unique property could be prepared from a mixture of a silicate compound and an epoxy compound, in which the silica within the nano-composite powder has a BET surface area of as high as greater than 800 m2/g although the nano-composite powder has a BET surface area of less than 10m2/g. It was estimated that the silica and the carbon are in a very finely and uniformly mixed state within the nano-composite powder and that the silica and the carbon form particles having a diameter of several tens nm and a number of silica particles having a diameter of several nm exist within the every particle of the nano-composite powder. It was demonstrated that the nano-composite powder exhibits characteristic behaviors under calcination at a temperature of 1450°C such that an amorphous state of the nano-composite powder is maintained, a large amount of gaseous reactant generates from the nano-composite powder, and a reaction product of SiC is synthesized in the presence of another ingredient.

Original languageEnglish
Pages (from-to)250-253
Number of pages4
JournalJournal of the Ceramic Society of Japan
Volume121
Issue number1410
DOIs
Publication statusPublished - 2013 Feb

Keywords

  • Carbon
  • Epoxy
  • Nano-composite powder
  • SiC
  • Silica
  • Silicate

ASJC Scopus subject areas

  • Ceramics and Composites
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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