DataVXACS Materials LettersPaper
journal article·2026-01-05Open access

Experimental Nonevidence of Fragile-to-Strong Crossover

Petr Koštál, Jaroslav Barták, Michaela Včeláková, Stanislav Slang, Torsten Wieduwilt, Markus A. Schmidt, Jiří Málek

ACS Materials Letters· Volume 8· Issue 1
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Source abstract

Abstract

This study explores the viscosity behavior of the Ge-Se chalcogenide glass-forming system. Four compositions containing 5, 10, 15, and 20 at. % germanium were examined. Viscosity measurements were performed over a broad range, spanning approximately 13 orders of magnitude, by combining the pressure-assisted melt filling technique with penetration and parallel-plate viscometry. The results demonstrate that no fragile-to-strong crossover occurs in any of the studied compositions.
Source: openalex_inverted_index · Quality: baseline

Research context

Ceramics & glasses

OpenAlex topics: Phase-change materials and chalcogenides · Material Dynamics and Properties · Metallic Glasses and Amorphous Alloys

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Inorganic Technology, University of Pardubice, Doubravice 41, 53210 Pardubice, Czech Republic

Department of Physical Chemistry, University of Pardubice, Studentská 573, 53210 Pardubice, Czech Republic

Center of Materials and Nanotechnologies, University of Pardubice, Nam. Cs. Legii 565, 53002 Pardubice, Czech Republic

Leibniz Institute of Photonic Technology, Albert-Einstein-Str. 9, 07745 Jena, Germany

Abbe Center of Photonics and Faculty of Physics, Friedrich-Schiller-University Jena, Max-Wien-Platz 1, 07743 Jena, Germany

Otto Schott Institute of Material Research, Friedrich-Schiller-University Jena, Fraunhoferstr. 6, 07743 Jena, Germany

Funding

Ministerstvo ?kolstv?, Ml?de?e a Telov?chovy · Fakulta chemicko-technologick?, Univerzita Pardubice · Grantov? Agentura Cesk? Republiky · Univerzita Pardubice

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