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Glass formation during combinatorial sputtering in binary alloys.

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Title: Glass formation during combinatorial sputtering in binary alloys.
Authors: Huang, Salena1 (AUTHOR), Kube, Sebastian A.1,2 (AUTHOR), Johnson, Nathan S.3 (AUTHOR), Sohn, Sungwoo1,4 (AUTHOR) sungwoo.sohn@yale.edu, Mehta, Apurva3 (AUTHOR), Schroers, Jan1 (AUTHOR) jan.schroers@yale.edu
Source: Acta Materialia. Sep2025, Vol. 296, pN.PAG-N.PAG. 1p.
Subjects: Binary metallic systems, Thin film deposition, Sputter deposition, Atomic radius, X-ray spectroscopy
Abstract: Glass formation is a complex phenomenon influenced by thermodynamic and kinetic aspects, which are often controlled by extrinsic contributions. While bulk metallic glasses are typically multicomponent alloys, binary alloys offer a simplified approach to studying glass formation. In this study, we fabricated 57 binary alloy systems through combinatorial sputtering, where each alloy system is represented in 66 different alloys. We developed an automated analysis to determine structure and composition using X-ray diffraction and energy-dispersive X-ray spectroscopy for over 3700 alloys. We found that ∼17 % of the alloys form glasses under the estimated cooling rate during sputtering of ∼108 K/s. Data analysis revealed that commonly used factors like atomic size ratio and heat of mixing are ineffective in predicting glass formation. However, the crystal structure mismatch of the alloys' elements emerged as the strongest indicator of glass formation under sputtering conditions of binary alloys. The differences in glass formation under slow cooling rates used for bulk glass formation and the here observed glass formation under rapid cooling rates are discussed. [Display omitted] [ABSTRACT FROM AUTHOR]
Copyright of Acta Materialia is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 186676401
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PubTypeId: academicJournal
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  Data: Glass formation during combinatorial sputtering in binary alloys.
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  Data: <searchLink fieldCode="DE" term="%22Binary+metallic+systems%22">Binary metallic systems</searchLink><br /><searchLink fieldCode="DE" term="%22Thin+film+deposition%22">Thin film deposition</searchLink><br /><searchLink fieldCode="DE" term="%22Sputter+deposition%22">Sputter deposition</searchLink><br /><searchLink fieldCode="DE" term="%22Atomic+radius%22">Atomic radius</searchLink><br /><searchLink fieldCode="DE" term="%22X-ray+spectroscopy%22">X-ray spectroscopy</searchLink>
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  Data: Glass formation is a complex phenomenon influenced by thermodynamic and kinetic aspects, which are often controlled by extrinsic contributions. While bulk metallic glasses are typically multicomponent alloys, binary alloys offer a simplified approach to studying glass formation. In this study, we fabricated 57 binary alloy systems through combinatorial sputtering, where each alloy system is represented in 66 different alloys. We developed an automated analysis to determine structure and composition using X-ray diffraction and energy-dispersive X-ray spectroscopy for over 3700 alloys. We found that ∼17 % of the alloys form glasses under the estimated cooling rate during sputtering of ∼108 K/s. Data analysis revealed that commonly used factors like atomic size ratio and heat of mixing are ineffective in predicting glass formation. However, the crystal structure mismatch of the alloys' elements emerged as the strongest indicator of glass formation under sputtering conditions of binary alloys. The differences in glass formation under slow cooling rates used for bulk glass formation and the here observed glass formation under rapid cooling rates are discussed. [Display omitted] [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of Acta Materialia is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.actamat.2025.121240
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      – Code: eng
        Text: English
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        PageCount: 1
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    Subjects:
      – SubjectFull: Binary metallic systems
        Type: general
      – SubjectFull: Thin film deposition
        Type: general
      – SubjectFull: Sputter deposition
        Type: general
      – SubjectFull: Atomic radius
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      – SubjectFull: X-ray spectroscopy
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            NameFull: Huang, Salena
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            NameFull: Johnson, Nathan S.
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              M: 09
              Text: Sep2025
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