Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1590713 | Progress in Crystal Growth and Characterization of Materials | 2006 | 7 Pages |
Abstract
Several samples of sodium and silver phosphate glasses doped with 1%, 5% and 10% iron, manganese and zinc chlorides and control samples of undoped sodium and silver phosphate glasses were prepared by melt quenching technique. Sodium phosphate glasses doped with 1%, 5% and 10% silver chloride were also prepared to see the role of Ag+ ions in modifying the structure of sodium phosphate glass. These glasses were characterized by elemental analyses, X-ray diffraction and DSC studies. The infrared spectra of these glasses were studied in the region 4000-400 cmâ1. Spectral analyses confirm the existence of characteristic P-O-P linkages of linear polyphosphate chains and presence of O-P-O units in the phosphate tetrahedra. The spectra also reveal the formation of P-O-M (where M = Fe, Mn, Zn) bonds in these glasses except in Na2O-P2O5 glasses doped with AgCl. The formation of P-O-M bonds which replace POâ¯Na+ or POâ¯Ag+ is in accordance with the variation of glass transition temperature (Tg) values.
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Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
S.S. Das, Vibha Srivastava,