A viscosity model for fluorochloroindate glasses

Viscosity of fluoride glasses is generally Arrhenian between glass transition temperature and crystallization temperature. This dependence on temperature is not observed in some special compositions which have two regions with different activation energies. The viscosity of glasses 40InF 3–20ZnF 2–2...

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Bibliographic Details
Published in:Journal of non-crystalline solids 1999-01, Vol.247 (1), p.14-18
Main Authors: Delben, J.R.J., Delben, A.A.S.T., Oliveira, S.L., Messaddeq, Younés
Format: Article
Language:English
Subjects:
Condensed matter: structure, mechanical and thermal properties
Diffusive momentum transport (including viscosity of liquids)
Exact sciences and technology
Physics
Transport properties of condensed matter (nonelectronic)
Viscosity of liquids
diffusive momentum transport
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Summary:Viscosity of fluoride glasses is generally Arrhenian between glass transition temperature and crystallization temperature. This dependence on temperature is not observed in some special compositions which have two regions with different activation energies. The viscosity of glasses 40InF 3–20ZnF 2–25BaF 2–10SrF 2–5LiCl and 40InF 3–20ZnF 2–15SrF 2–20BaF 2–5NaCl was obtained by the parallel plate method. A theoretical model has been proposed to explain the viscosity data.
ISSN:0022-3093
1873-4812
DOI:10.1016/S0022-3093(99)00023-X