Structural investigation on silver phosphate glasses embedded with nanoparticles

Kabi, S. ; Ghosh, A. (2012) Structural investigation on silver phosphate glasses embedded with nanoparticles Journal of Alloys and Compounds, 520 . pp. 238-243. ISSN 0925-8388

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Official URL: http://www.sciencedirect.com/science/article/pii/S...

Related URL: http://dx.doi.org/10.1016/j.jallcom.2012.01.031

Abstract

Structural investigations of CdI2 doped silver phosphate glass-nanocomposites in the system xCdI2-(1 - x)(yAg2O-(1 - y)P2O5) are presented in this paper. Although, X-ray diffraction patterns show amorphous nature of the compositions, electron microscopic studies show several nanocrystalline phases such as CdI2, β -AgI, AgPO3 and Ag4P2O7 dispersed within the glass matrix. The presence of CdI2 nanoparticles in cluster form is dominant for the compositions in the limit of the glass forming domain. The particle size in polyphosphate compositions is higher than that of metaphosphate or ultraphosphate compositions. FTIR spectra of these compositions have been investigated. It has been observed that the presence of different nanocrystalline phases does not affect the basic glass network. Differential scanning calorimetric results show that the incorporation of CdI2 within the glassy matrix increases the glass transition temperature. It is observed that the structural characteristics of the CdI2 doped silver phosphate glasses are quite different from that of other divalent metal iodide doped glasses.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
Keywords:Glass-nanocomposites; Microstructure; Optical Properties; Thermal Properties
ID Code:86377
Deposited On:10 Mar 2012 06:56
Last Modified:10 Mar 2012 06:56

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