Thermal diffusivities and molar volumes of ternary Al20 AsxTe80−x alloy glasses: evidence of self-organization

Manohar, Srirang and Murugavel, S. and Asokan, S. (2005) Thermal diffusivities and molar volumes of ternary Al20 AsxTe80−x alloy glasses: evidence of self-organization. Solid State Communications, 135 (5). pp. 323-326. ISSN 0038-1098

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Abstract:	Thermal diffusivities (α) and molar volumes (Vm) of bulk Al20AsxTe80−x alloy glasses in the composition range 0≤x≤35 are examined. The results reveal a broad maximum in alpha and a broad minimum in Vm in the 15<x<25 range. Earlier temperature modulated differential scanning calorimetric measurements on these glasses have revealed the non-reversing heat flow to show a global minimum (reversibility window) in the same composition range. Taken together these results suggest that present glasses in the 15<x<25 range are self-organized. The thermal diffusivity maximum observed near x=20 is consistent with a minimal scattering of thermal waves in the homogeneous and stress-free glass composition residing in the center of the self-organized phase
Item Type:	Article
Copyright:	© 2005 Elsevier Ltd
Link to this item:	http://purl.utwente.nl/publications/76437
Official URL:	http://dx.doi.org/10.1016/j.ssc.2005.05.001
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