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Milling‐Driven Volumetric Nanostructurization in Glassy‐Crystalline As70Se30 Characterized in Terms of Modified Positronics Approach

Year: 2024

Type: article

Abstract: The melt‐quenched glassy‐crystalline As70Se30 alloys subjected to nanomilling in dry and combined dry‐wet modes are probed by positron annihilation lifetime (PAL) spectroscopy. Modified Positronics approach parameterizing conversion of Ps‐hosting holes in positron trapping sites is applied to identify volumetric changes in the polyvinylpyrrolidone (PVP) stabilized alloys in respect to dry‐milled ones. Under transition from wet‐ to dry‐milled arsenoselenide probes, positron traps with defect‐specific lifetime ascribed to multiatomic vacancies in As–Se network appear instead of Ps‐decaying sites preferentially in PVP environment, these changes occurring in the oxidized arsenoselenide matrix.

Source: Macromolecular Symposia

DOI: 10.1002/masy.202300246

Authors: Oleh Shpotyuk, Adam Ingram, Yaroslav Shpotyuk, Zdenka Lukáčová Bujňáková, Peter Baláž

Institutions: Jan Długosz University, Vlokh Institute of Physical Optics, Opole University of Technology, Lviv University, University of Rzeszów, Slovak Academy of Sciences, Institute of Geotechnics of the Slovak Academy of Sciences

Language: English

Topic: Muon and positron interactions and applications

Subfield: Mechanics of Materials

Field: Engineering

Domain: Physical Sciences

Open Access status: bronze

OpenAlex ID: W4401668952

FWCI: 0.153

Cites: 16

Cited by: 1

Related to: 10