Work

Experimental Nonevidence of Fragile-to-Strong Crossover

Year: 2025

Type: article

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: ACS Materials Letters

DOI: 10.1021/acsmaterialslett.5c01178

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

Institutions: University of Pardubice, Centre of Materials and Nanotechnologies, Leibniz Institute of Photonic Technology, Friedrich Schiller University Jena

Language: English

Topic: Material Dynamics and Properties

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $4,500

Funders: Fakulta chemicko-technologická, Univerzita Pardubice, Ministerstvo Školství, Mládeže a Tělovýchovy, Grantová Agentura České Republiky, Univerzita Pardubice

Awards: Center of Materials and Nanotechnologies, Physical properties and thermal behavior of solution-processed and thermally evaporated chalcogenide thin films: Low-cost materials for IR optics

OpenAlex ID: W4416919365

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Cites: 48

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