ISSN:
1573-4803
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract The Mössbauer and ESR spectra and internal friction behaviour of Na2O-3SiO2 glasses having different redox ratios have been studied. As the redox ratio changes over a considerable range, there is a significant structural change associated with both the Fe3+ and Fe2+ ions, as evidenced from the analysis of the molar volume and Mössbauer data. The ESR data qualitatively supports the Mössbauer data on the Fe3+ ions. The change of internal friction behaviour of these glasses around 50% Fe3+ is described in terms of the structural changes associated with the Fe ions, which is thought to influence the oxygen structure of these glasses. The importance of this structural change on the electronic conductivity behaviour of these types of glasses is mentioned.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00550635
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