• Study of rigidity of semiconducting vanadate glasses and its importance in use of coatings

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      https://www.ias.ac.in/article/fulltext/boms/037/03/0661-0667

    • Keywords

       

      Vanadate glasses; molar volume; elastic properties.

    • Abstract

       

      The elastic moduli of some multicomponent vanadate based glasses were analysed in terms of the bond compression model by some physical parameters such as, the density, average stretching force constant and average atomic ring size. These parameters were calculated for all the glass series and for all the glass composition to estimate the rigidity of these glasses. The results showed that the average force constant and the elastic moduli of these glasses are sensitive to the decrease in PbO content. This behaviour was attributed to the increase in the molar volume and the role of different modifiers. These parameters along with the coordination number of the glasses affect the glass transition temperature. The correlation between the elastic moduli and thermal properties of these samples showed that 0.25MoO3–0.25PbO–0.5V2O5 glass is the most rigid and has an applicable glass transition temperature for coating.

    • Author Affiliations

       

      Yasser B Saddeek1 2 M S Gaafar1 3

      1. Physics Department, Faculty of Science, Majmaa University, Zulfi, Saudi Arabia
      2. Physics Department, Faculty of Science, Al-Azhar University, P. O. Box 71452, Assiut, Egypt
      3. Ultrasonic Laboratory, National Institute for Standards, Tersa Str., P. O. Box 136, El-Haram, El-Giza 12211, Egypt
    • Dates

       

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