Young's modulus and compositional parameters of oxide glasses

Seiji Inaba, Shigeru Fujino, Kenji Morinaga

    Research output: Contribution to journalArticle

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    Abstract

    The Young's moduli of various oxide glasses (silicate, borate, phosphate, and tellurite) were measured using an ultrasonic method. To predict the Young's moduli of the oxide glass systems, empirical compositional parameters Gi and Vi, based on the Makishima-Mackenzie theory, were obtained, where Gi is the dissociation energy and Vi the packing density parameter of a single-component oxide. The relationship between the calculated Young's modulus from the compositional parameters and the measured Young's modulus was investigated. Experimental results indicated that the Young's modulus of phosphate and tellurite glasses could not be predicted using these parameters. Thus, it was necessary to modify the Gi, by considering P2O5 and TeO2 as glass network formers. As for the phosphate glass, it exhibited a layered structure that consisted of P = O double bond and three chains of P-O bond. In this paper, the modified Gi of P2O5 was calculated using the assumption that the P = O double bond is a nonbridging bond and does not contribute to Young's modulus. In the case of tellurite glass, the glass structure is mainly composed of TeO4 trigonal pyramids, and the addition of other oxides results in structural changes to the TeO3 trigonal pyramid. However, the mechanisms of such structural changes have not yet been clarified. Therefore, the modified Gi of TeO2 was calculated from the measured value using the density and Young's modulus of pure TeO2 glass. The results revealed that the calculated values using our proposed parameter were in good agreement with measured values all through the oxide glasses.

    Original languageEnglish
    Pages (from-to)3501-3507
    Number of pages7
    JournalJournal of the American Ceramic Society
    Volume82
    Issue number12
    Publication statusPublished - 1999

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    Oxides
    Elastic moduli
    Glass
    phosphorus pentoxide
    Phosphates
    Silicates
    Borates
    Ultrasonics
    tellurous acid

    All Science Journal Classification (ASJC) codes

    • Ceramics and Composites
    • Materials Chemistry

    Cite this

    Young's modulus and compositional parameters of oxide glasses. / Inaba, Seiji; Fujino, Shigeru; Morinaga, Kenji.

    In: Journal of the American Ceramic Society, Vol. 82, No. 12, 1999, p. 3501-3507.

    Research output: Contribution to journalArticle

    Inaba, Seiji ; Fujino, Shigeru ; Morinaga, Kenji. / Young's modulus and compositional parameters of oxide glasses. In: Journal of the American Ceramic Society. 1999 ; Vol. 82, No. 12. pp. 3501-3507.
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