Nucleation and nanometric inhomogeneity in niobiogermanate glass: In-situ inelastic light scattering and tem studies

Y. Takahashi, M. Osada, H. Masai, Rie Ihara, T. Fujiwara

Research output: Contribution to journalConference article

Abstract

We performed in-situ inelastic light scattering measurement in KNbGeO 5 glass with a high nucleation ability during heating in order to elucidate nanocrystallization dynamics. The results of the in-situ measurement and TEM observation revealed that nanometric heterogeneous region (∼1-2 nm) consisting of the Nb-richer phase develops, i.e., K3Nb 7O19, at the temperature, in which glassy-supercooled- liquid (SCL) phase-transition occurs, i.e., precursive stage of nanocrystallization. This strongly suggests that evolution of the nanometric Nb-richer phase in the SCL phase corresponds to nucleation in the KNbGeO 5 glass.

Original languageEnglish
Article number112009
JournalIOP Conference Series: Materials Science and Engineering
Volume18
Issue numberSYMPOSIUM 8
DOIs
Publication statusPublished - 2011 Aug 31
Event3rd International Congress on Ceramics, ICC3 - Osaka, Japan
Duration: 2010 Nov 142010 Nov 18

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

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