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Structural properties of strontium vanadate glasses

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Abstract

Structural studies of the strontium vanadate glasses of compositions xV2O5–(100 − x)SrO are reported. X-ray diffractograms, density, and oxygen molar volume, etc., of the glasses show that single-phase and homogeneous glasses were obtained in the composition domain x = 50 to 90 mol%. The network structure for the glass compositions with 90 and 80 mol% V2O5 is built up of the VO5 polyhedra, while the other glass compositions consist of the VO4 polyhedra. Density and glass transition temperature are observed to decrease with an increase in the V2O5 content. The magnetic susceptibility of the glasses shows an increase of concentration of the reduced V4+ ion with the increase of vanadium oxide content in the compositions. The well-resolved electron spin resonance structure observed for the glass composition with 50 mol% V2O5 gradually becomes poor and reduces to a single component line, which has been attributed to the increase of the hopping rate of charge carriers with the increase of the V2O5 content in the compositions.

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Authors and Affiliations

  1. Solid State Physics Department, Indian Association for the Cultivation of Science Jadavpur, 700032, Calcutta, India

    S. Sen & A. Ghosh

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  1. S. Sen
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  2. A. Ghosh
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Correspondence to A. Ghosh.

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Sen, S., Ghosh, A. Structural properties of strontium vanadate glasses. Journal of Materials Research 15, 995–999 (2000). https://doi.org/10.1557/JMR.2000.0142

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  • DOI: https://doi.org/10.1557/JMR.2000.0142

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