Internal friction in silver-containing [.sub.100-x] superionic glasses

The mechanical properties of glasses in the [Ag.sub.3]As[S.sub.3]-[As.sub.2][S.sub.3] system have been studied by the internal friction method. Measurements of internal friction and shear modulus have been carried out in the temperature interval 80-300 K at deformation frequencies of 10-50 mHz. Rela...

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Bibliographic Details
Published in:Physics of the solid state 2012-12, Vol.54 (12), p.2437
Main Authors: Bilanych, V.S, Buchuk, R. Yu, Skubenych, K.V, Makauz, I.I, Studenyak, I.P
Format: Article
Language:English
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Summary:The mechanical properties of glasses in the [Ag.sub.3]As[S.sub.3]-[As.sub.2][S.sub.3] system have been studied by the internal friction method. Measurements of internal friction and shear modulus have been carried out in the temperature interval 80-300 K at deformation frequencies of 10-50 mHz. Relaxation-type maxima of internal friction have been revealed. It has been shown that the concentration-induced variations in the parameters of the mechanical relaxation process in [([Ag.sub.3]As[S.sub.3]).sub.x][([As.sub.2][S.sub.3]).sub.100-x] glasses observed in the region of 20 at % [Ag.sub.3]As[S.sub.3] are of the threshold character. It has been established that this feature can be associated with the variation in the structural unit, which accounts for the process of mechanical energy dissipation within the temperature interval 150-250 K.
ISSN:1063-7834
1090-6460
DOI:10.1134/S1063783412120074