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説明:

Parametric changes in the first coordination shell (FCS) of a vitreous metallic Pd42.5Cu30Ni7.5P20 alloy are analysed, aiming to confirm the identification of the glass transition temperature (Tg) via processing of XRD patterns utilising radial and pair distribution functions (RDFs and PDFs) and their evolution with temperature. The Wendt–Abraham empirical criterion of glass transition and its modifications are confirmed in line with previous works, which utilised the kink of the temperature dependences of the minima and maxima of both the PDF and the maxima of the structure factor S(q). Massive fluctuations are, however, identified near the Tg of the derivatives of the minima and maxima of the PDF and maxima of S(q), which adds value to understanding the glass transition in the system as a true second-order-like phase transformation in the non-equilibrium system of atoms.

権利情報:

• Creative Commons BY Attribution 4.0 International
  

キーワード: Glass transition, Pair Distribution Function, Fluctuations, Bulk metallic glass, Vitrification, Wendt–Abraham criterion, Structure factor

刊行年月日: 2025-08-02

出版者: MDPI AG

掲載誌:

• Metals (ISSN: 20754701) vol. 15 issue. 8 869

研究助成金:

• JSPS KAKENHI 24K01284

原稿種別: 出版者版 (Version of record)

MDR DOI:

公開URL: https://doi.org/10.3390/met15080869

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更新時刻: 2026-05-18 14:59:01 +0900

MDRでの公開時刻: 2026-05-18 16:23:13 +0900