Crystallization and morphology of glassy sanbornite

Yoshihiro Takahashi, Rie Ihara, Takumi Fujiwara, Minoru Osada

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Abstract

We investigated the crystallization and resulting morphology of a stoichiometric barium-silicate glass 1BaO-2SiO2 (glassy sanbornite) by using transmission electron microscope and Raman spectroscopy. A crystalline aggregate structure consisting of a Ba5Si8O21 phase (trunk) and a β-BaSi2O5 phase (branch) was observed in the heat-treated glassy sanbornite. The Ba-richer phase of Ba 5Si8O21 precipitated prior to the formation of the stoichiometric β-BaSi2O5 phase, suggesting the presence of the region in which the Ba ions are enriched or cohesively distributed. A considerable structural similarity between the glassy sanbornite and the Ba5Si8O21 phase was also suggested in this study.

Original languageEnglish
Title of host publicationElectroceramics in Japan XIV
PublisherTrans Tech Publications Ltd
Pages301-304
Number of pages4
ISBN (Print)9783037851821
DOIs
Publication statusPublished - 2011

Publication series

NameKey Engineering Materials
Volume485
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795

Keywords

  • Crystallization
  • Raman spectroscopy
  • Sanbornite
  • Silicate glass
  • TEM observation

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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