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Synthesis and X-ray powder diffraction characterization of a new niobate crystal Ba4Na2VNb9O30

  • Zhang Gao-ke
  • Wu Jin-dong
  • Ouyiang Shi-xi
  • Qin Lin-qing
  • Yu Jia-guo
Article

Abstract

A new niobate crystal Ba4Na2VNb9O30 was synthesized in BaO−Na2O−V2O5−Nb2O5 system for the first time. Its shape, optical properties, melting point and chemical stability wer estudied. X-ray powder diffraction study determined that this compound assumes a tetragonal tungsten bronze structure with space group P4 bm (100) and lattice parameters a=b=12.4275(2), c=3.970(3). The new compound may be one kinds of photorefractive crystals.

Key words

niobate tungsten bronze vanadium 

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Copyright information

© Editorial Office of Journal of Wuhan University of Technology-Materials Science Edition 2001

Authors and Affiliations

  • Zhang Gao-ke
    • 2
  • Wu Jin-dong
    • 1
  • Ouyiang Shi-xi
    • 2
  • Qin Lin-qing
    • 2
  • Yu Jia-guo
    • 2
  1. 1.Hainan Ruifeing OFC Co, LtdHainanChina
  2. 2.Non-Metallic Research InstituteWuhan University of TechnologyWuhanChina

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