Elaboration and characterization of the tetragonal tungsten bronze ferroelectric Sr2(1-x)Na(1+x)GdxNb5O15

The nanopowders ferroelectric Sr2(1-x)Na(1+x)GdxNb5O15 was synthesized by solid-state method, were prepared by the precursor calcination at 1200 oC during 24 hours in oxygen atmosphere and by a high-temperature solid-state reaction technique. The structural characterization of Sr2(1-x)Na(1+x)GdxNb5O15 nanopowders was carried out by the X-ray diffraction. The profile of adjusting of the set of diffraction lines and refinement of the structural parameters were performed by the Rietveld method, using the FULLPROF program. The results reveal an orthorhombic phase, with space group Pmmm for 0 ≤ x ≤ 0.8 and a tetragonal phase, with space group P4mm, for 0.9 ≤ x ≤ 1

This article is published in peer review journal and open access journal, International journal of research in engineering and innovation (IJREI) which have a high impact factor journal for more details regarding this article, please go through our journal website.

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