Mauro, John C.

Smedskjær, Morten Mattrup

Yue, Yuanzheng

English

    Aalborg UniversitetPredicting the Viscosity of Multicomponent Glass-Forming LiquidsSmedskjær, Morten Mattrup; Mauro, John C.; Yue, YuanzhengPublication date:2012Document VersionEarly version, also known as pre-printLink to publication from Aalborg UniversityCitation for published version (APA):Smedskjær, M. M., Mauro, J. C., & Yue, Y. (2012). Predicting the Viscosity of Multicomponent Glass-FormingLiquids. Abstract from Nordic Conference on Ceramic and Glass Technology, Roskilde, Denmark.General rightsCopyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright ownersand it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.            ? Users may download and print one copy of any publication from the public portal for the purpose of private study or research.            ? You may not further distribute the material or use it for any profit-making activity or commercial gain            ? You may freely distribute the URL identifying the publication in the public portal ?Take down policyIf you believe that this document breaches copyright please contact us at vbn@aub.aau.dk providing details, and we will remove access tothe work immediately and investigate your claim.Downloaded from vbn.aau.dk on: December 25, 2020Predicting the Viscosity of Multicomponent Glass-Forming Liquids   Morten M. Smedskjaer1, John C. Mauro2, Yuanzheng Yue1  1Section of Chemistry, Aalborg University, DK-9000 Aalborg, Denmark 2Science and Technology Division, Corning Incorporated, Corning, NY 14831, USA    The quantitative design of glassy materials with tailored properties is a longstanding problem in the glass science community. One of the most technologically important properties is the shear viscosity, since all stages of industrial glass production require careful control of shear viscosity. Here, we show that topological constraint theory holds the key to understanding the temperature and composition dependence of the viscosity of glass-forming liquids. Using this approach, we derive detailed topological representations of soda lime borate and borosilicate systems that enable the accurate prediction of glass transition temperature and liquid fragility. The implications of the glass topology are discussed in terms of both the temperature and thermal history dependence of the atomic bond constraints and the influence on relaxation behavior. We also present a phenomenological model offering an improved description of the composition and temperature dependence of the shear viscosity of multicomponent liquids, for which the existing analytical models currently do not apply. The model predicts the isokom temperatures of 7141 viscosity measurements for 760 different compositions with a root-mean-square error of only 6.55 K. 

Predicting the Viscosity of Multicomponent Glass-Forming Liquids

https://vbn.aau.dk/ws/files/71453542/Abstract.pdf

Predicting the Viscosity of Multicomponent Glass-Forming Liquids

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