https://doi.org/10.1140/epjp/s13360-024-05857-x
Regular Article
Unraveling the influence of some foreign elements on microhardness and thermomechanical characteristics of SeTeSn alloy
Department of Physics, Institute of Science, Banaras Hindu University, 221005, Varanasi, India
Received:
14
June
2024
Accepted:
18
November
2024
Published online:
29
November
2024
This study investigates the influence of various metallic additives (Ag, Bi, Cd, and Zn) on the Vickers microhardness and thermo-mechanical properties of parent Se₇₈Te₂₀Sn₂ chalcogenide glass. The glassy alloys were synthesized using the melt-quench method, and their microhardness was measured through precise Vickers micro-indentation testing, under varying loads (100 gm, 200 gm, and 300 gm). Optical microscopy enabled detailed measurements of the indentation marks. The differential scanning calorimetry assessed glass transition temperatures, confirming the glassy structure. Additionally, empirical calculations were employed to determine the modulus of elasticity (E), micro-void volume (Vh), and the energy required for micro-void formation (Eh). Findings reveal decreased microhardness in quaternary alloys, with Ag and Cd showing the most significant impact. Conversely, Zn exhibited minimal reduction, suggesting that its inclusion affects the glassy matrix differently. The density and molar volume of the samples show an inverse relationship with their compactness. This work offers insights into optimizing the hardness and structural properties of chalcogenide glasses through controlled elemental modification.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
