Chinese Journal of Applied Chemistry ›› 2015, Vol. 32 ›› Issue (4): 442-446.DOI: 10.11944/j.issn.1000-0518.2015.04.140235

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Preparation and Properties of Fluorine Containing CaO-P2O5-SiO2-Na2O-B2O3 Glass-ceramics

JIANG Limeia, ZOU Xiangyua, WEI Qinleia, SONG Qionga, c, DENG Shuanga, ZHANG Hongboa, *, SU Chunhuia, b   

  1. aSchool of Chemistry Environmental Engineering,Changchun University of Science and Technology,Changchun 130022,China
    bChangchun Normal University Faculty of Chemistry,Changchun,130032,China
    cJilin Teacher's Institute of Engineering and Technology,Changchun 130032,Chin
  • Received:2014-07-03 Online:2015-04-10 Published:2015-04-10
  • Contact: Corresponding author:ZHANG Hongbo, professor; Tel:0431-85583159; E-mail:zhb5388460@126.com; Research interests:photoelectric functional materials
  • Supported by:

    Supported by the National “863” Project(No.2011AA030204), the Research Project of Science and Technology Department of Jilin Province(No.20120341)

Abstract:

By partially substituting of CaO with CaF2, in CaO-P2O5-SiO2-Na2O-B2O3 glass-ceramic system a new precursor powder was prepared by the sol-gel method. Its crystallization temperature was determined by TG-DSC at 865 ℃. The main crystal phase of the glass-ceramics is Na6Ca3Si6O18. The microstructures and properties of this glass-ceramics were characterized by X-ray diffractometry (XRD), Fourier transform infrared spectroscopy(FTIR), scanning electron microscopy(SEM) and in vitro assays. By addition of CaF2, the volume density, bending strength and microhardness of the glass-ceramics are significantly improved, but the bioiogical activity of the glass-ceramics is maintained.

 

Key words: sol-gel method, CaF2, glass-ceramics, biological activity

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