Open AccessElastic properties and spectroscopic studies of Na2O-ZnO-B2O3 glass system
Author(s) -
V. C. Veeranna Gowda,
R. V. Anavekar
Publication year - 2004
Publication title -
bulletin of materials science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.35
H-Index - 72
eISSN - 0973-7669
pISSN - 0250-4707
DOI - 10.1007/bf02708505
Subject(s) - materials science , debye model , elastic modulus , boron , shear modulus , ion , poisson's ratio , shear (geology) , modulus , bulk modulus , spectral line , mineralogy , analytical chemistry (journal) , composite material , thermodynamics , poisson distribution , organic chemistry , chemistry , physics , statistics , mathematics , astronomy
Elastic properties, 11B MAS-NMR and IR spectroscopic studies have been employed to study the structure of Na2O-ZnO-B2O3 glasses. Sound velocities and elastic moduli such as longitudinal, Young's bulk and shear modulus have been measured at a frequency of 10 MHz as a function of ZnO concentration. Both sound velocities and elastic moduli increase with increasing ZnO concentration. Poisson's ratio and Debye temperature were also found to increase with ZnO concentration. 11B MAS-NMR and IR spectra show characteristic features of borate network and compositional dependence trends as a function of Na2O/ZnO concentration. The results are discussed in view of borate network and dual structural role of Zn2+ ion into the network. The results indicate that the Zn2+ ions are likely to occupy network forming positions in this glass system
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