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Publication Type : Journal Article
Publisher : Springer India
Source : Bulletin of Materials Science, Springer India, Volume 29, Number 4, p.357–363 (2006)
Campus : Coimbatore
School : Center for Industrial Research and Innovation
Center : Center for Industrial Research and Innovation (ACIRI)
Department : Nanosciences
Year : 2006
Abstract : Nano-crystal embedded PbO-P2O5 glass has been prepared and characterized by XRD and TEM measurements. The ultrasonic velocity and attenuation measured within the temperature range 80–300 K show significant structure and interesting feature with the presence of nano-crystalline region. The glass samples were prepared by melt-quench method and nano-crystals of different sizes were produced by heat treatment of the glasses for different durations of heating. All the processes were carried out at or above glass transition temperature. A theoretical model that takes account of the effects of thermally activated relaxation, anharmonicity as well as microscopic elastic inhomogeneities arising out of fluctuations has been successfully applied to interpret the variation of ultrasonic velocity and attenuation data. An interesting outcome of this application has been to propose a method for the determination of the size of nano-crystals from the ultrasonic attenuation data.
Cite this Research Publication : Sudip Kumar Batabyal, Paul, A., Roychoudhury, P., and Basu, C., “Acoustic study of nano-crystal embedded PbO-P2O5 glass”, Bulletin of Materials Science, vol. 29, pp. 357–363, 2006.