Effect of melting temperature on the structure of self-crystallized Ba2LaF7 glass-ceramics

Weihui Shen, Yong Yang*, Zhencai Li, Muhammad Ibrar Khan, Enhao Cao, Dacheng Zhou, Jianbei Qiu

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

10 Citations (Scopus)

Abstract

The self-crystallization phenomenon in glass can provide low-phonon energy environment for the up-conversion of luminescence centers. Nevertheless, the crystallization mechanism is not clear, hence the effect of temperature on the self-crystallization of Ba2LaF7: Er3+/Yb3+ glass-ceramics via adjusting its melting temperature has investigated. The self-crystallization fraction of Ba2LaF7 has decreased with the increase in melting temperature. The Fourier transforms infrared spectra, X-ray Fluorescence analysis and differential thermal analysis revealed that the increase in temperature makes the Si[sbnd]O bond longer in the glass, resulting in the increase of activation energy for crystallization instead of precipitating the crystals.

Original languageEnglish
Article number119579
JournalJournal of Non-Crystalline Solids
Volume523
ISSN0022-3093
DOIs
Publication statusPublished - 1 Nov 2019
Externally publishedYes

Bibliographical note

Funding Information:
This work was supported by the National Natural Science Foundation of China (No. 11774138 , 11664022 ) and Foundation of Yunnan Province ( 2016FA021 and 2016FB081 ) and the project for personnel training fund supported by Kunming University of Science and Technology ( KKSY201632046 ).

Publisher Copyright:
© 2019 Elsevier B.V.

Keywords

  • BaLaF
  • FTIR
  • Glass-ceramics
  • Luminescence
  • Self-crystallization
  • Temperature

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