Crystallization and raman spectra of langasite-type Na2CaGe 6O14, Na2SrGe6O14 and Pb3Ga2Ge4O14 in corresponding glasses

Yoshihiro Takahashi, Takumi Fujiwara, Yasuhiko Benino, Takayuki Komatsu

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

Abstract

We investigated the crystallization behavior of langasite-type phases in the stoichiometric corresponding glasses, i.e., Na2CaGe 6O14, Na2SrGe6O14 and Pb3Ga2Ge4O14. The langasite-type phases singly were formed by heat-treatment in the glasses. Raman spectroscopy revealed the structural similarity on the scale of short-/medium-range order between the langasite-type phases and the corresponding glasses. Furthermore, we also examined the temperature dependence of second-harmonic (SH) intensity of the langasite-type phases. The SH-temperature curves exhibited an anomalous behavior, implying a structural change, e.g., isomorphous phase transition.

Original languageEnglish
Title of host publicationAsian Ceramic Science for Electronics III and Electroceramics in Japan XII
PublisherTrans Tech Publications Ltd
Pages213-216
Number of pages4
ISBN (Print)0878493069, 9780878493067
DOIs
Publication statusPublished - 2010
Event6th Asian Meeting on Electroceramics, AMEC-6, in conjunction with the Electronics Division Meeting of the Ceramic Society of Japan - Tsukuba, Japan
Duration: 2008 Oct 222008 Oct 24

Publication series

NameKey Engineering Materials
Volume421-422
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795

Other

Other6th Asian Meeting on Electroceramics, AMEC-6, in conjunction with the Electronics Division Meeting of the Ceramic Society of Japan
Country/TerritoryJapan
CityTsukuba
Period08/10/2208/10/24

Keywords

  • Crystallization
  • Glass
  • Langasite-type phase
  • Raman spectroscopy
  • Second-harmonic generation

ASJC Scopus subject areas

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

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