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

doi:10.1007/BF02852630

Journal of Wuhan University of Technology Materials Science Edition ›› 2002, Vol. 17 ›› Issue (1) : 33 -34. DOI: 10.1007/BF02852630

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

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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.

Keywords

niobate / tungsten bronze / vanadium

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Zhang Gao-ke, Wu Jin-dong, Ouyiang Shi-xi, Qin Lin-qing, Yu Jia-guo. Synthesis and X-ray powder diffraction characterization of a new niobate crystal Ba₄Na₂VNb₉O₃₀. Journal of Wuhan University of Technology Materials Science Edition, 2002, 17(1): 33-34 DOI:10.1007/BF02852630

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References

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