Precipitation of ZnO in Al2O3-doped zinc borate glass ceramics

Hirokazu Masai, Takahiro Ueno, Yoshihiro Takahashi, Takumi Fujiwara

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9 Citations (Scopus)


Crystallization behavior of the oxide semiconductor ZnO in zinc borate glass was investigated. The precipitated crystalline phase of glass ceramics containing a small amount of Al2O3 was α-Zn 3B2O6 whereas that of the glass ceramics containing a large amount of Al2O3 was ZnO. It was found that the c-oriented precipitation of ZnO in a glass ceramic was brought about by the in-plane crystal growth of needle-like ZnO crystallites along the a-axis. Amount of Al2O3 that can make glass network affected the coordination state of B2O3 in the glass, and a three-coordinated BO3 unit was preferentially formed in the glass containing a higher amount of Al2O3. The present results suggest that crystallization of ZnO from multi-component glass is dominated by the local coordination state of the mother glass.

Original languageEnglish
Pages (from-to)1980-1983
Number of pages4
JournalOptical Materials
Issue number12
Publication statusPublished - 2011 Oct


  • Crystallization
  • Glass ceramic
  • Zinc oxide


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