Influence of copper, calcium and strontium on the formation of quasicrystals in Al-Mn-based alloys.

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Title: Influence of copper, calcium and strontium on the formation of quasicrystals in Al-Mn-based alloys.
Authors: Naglič, Iztok1,2,3 (AUTHOR) iztok.naglic@ntf.uni-lj.si, Leskovar, Blaž1 (AUTHOR), Zaky, Adam1,2,3 (AUTHOR), Arah, Bor4 (AUTHOR), Stojanović, Jovica5 (AUTHOR), Kamberović, Željko6 (AUTHOR), Boulet, Pascal2,3,7 (AUTHOR), Markoli, Boštjan1,2,3 (AUTHOR)
Source: Journal of Alloys & Compounds. Mar2026, Vol. 1057, pN.PAG-N.PAG. 1p.
Subjects: Quasicrystals, Aluminum-manganese alloys, Calcium alloys, Strontium, Surface tension, Nucleation, Metal castings
Abstract: In this study, the effect of adding calcium or strontium to Al-Mn and Al-Mn-Cu alloys on the formation of quasicrystals (QCs) is investigated. The alloys were cast in a massive copper mould with a cavity diameter of 3 mm. The cast alloys were characterised by X-ray diffraction, scanning electron microscopy, energy dispersive X-ray spectroscopy, and electron backscatter diffraction. The addition of either calcium or strontium to Al-Mn and Al-Mn-Cu alloys promotes the formation of icosahedral QCs (IQCs). The results also show that neither calcium or strontium are integral part of the QC phases formed in these alloys. The results further indicate considerable differences in the composition of decagonal QC (DQC) phases in Al-Mn-Cu alloys without and with either calcium or strontium, whereas the electron-atom ratio according to Mizutani shows almost negligible differences. The effectiveness of calcium and strontium in promoting the formation of IQCs is attributed to a reduced surface tension of the Al-based melt. This consequently leads to a decrease in the critical radius for nucleation of IQCs. • Calcium and strontium were added into an Al-Mn and Al-Mn-Cu alloy systems. • Alloys were cast into a copper mould. • The addition of calcium or strontium promotes the formation of QCs. • Calcium and strontium are not present in QCs. • Effectiveness of both elements is attributed to a reduction in the surface tension. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Alloys & Compounds 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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Header DbId: egs
DbLabel: Engineering Source
An: 191946187
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Label: Title
  Group: Ti
  Data: Influence of copper, calcium and strontium on the formation of quasicrystals in Al-Mn-based alloys.
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  Data: <searchLink fieldCode="AR" term="%22Naglič%2C+Iztok%22">Naglič, Iztok</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<i> iztok.naglic@ntf.uni-lj.si</i><br /><searchLink fieldCode="AR" term="%22Leskovar%2C+Blaž%22">Leskovar, Blaž</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zaky%2C+Adam%22">Zaky, Adam</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Arah%2C+Bor%22">Arah, Bor</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Stojanović%2C+Jovica%22">Stojanović, Jovica</searchLink><relatesTo>5</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kamberović%2C+Željko%22">Kamberović, Željko</searchLink><relatesTo>6</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Boulet%2C+Pascal%22">Boulet, Pascal</searchLink><relatesTo>2,3,7</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Markoli%2C+Boštjan%22">Markoli, Boštjan</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Alloys+%26+Compounds%22">Journal of Alloys & Compounds</searchLink>. Mar2026, Vol. 1057, pN.PAG-N.PAG. 1p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Quasicrystals%22">Quasicrystals</searchLink><br /><searchLink fieldCode="DE" term="%22Aluminum-manganese+alloys%22">Aluminum-manganese alloys</searchLink><br /><searchLink fieldCode="DE" term="%22Calcium+alloys%22">Calcium alloys</searchLink><br /><searchLink fieldCode="DE" term="%22Strontium%22">Strontium</searchLink><br /><searchLink fieldCode="DE" term="%22Surface+tension%22">Surface tension</searchLink><br /><searchLink fieldCode="DE" term="%22Nucleation%22">Nucleation</searchLink><br /><searchLink fieldCode="DE" term="%22Metal+castings%22">Metal castings</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: In this study, the effect of adding calcium or strontium to Al-Mn and Al-Mn-Cu alloys on the formation of quasicrystals (QCs) is investigated. The alloys were cast in a massive copper mould with a cavity diameter of 3 mm. The cast alloys were characterised by X-ray diffraction, scanning electron microscopy, energy dispersive X-ray spectroscopy, and electron backscatter diffraction. The addition of either calcium or strontium to Al-Mn and Al-Mn-Cu alloys promotes the formation of icosahedral QCs (IQCs). The results also show that neither calcium or strontium are integral part of the QC phases formed in these alloys. The results further indicate considerable differences in the composition of decagonal QC (DQC) phases in Al-Mn-Cu alloys without and with either calcium or strontium, whereas the electron-atom ratio according to Mizutani shows almost negligible differences. The effectiveness of calcium and strontium in promoting the formation of IQCs is attributed to a reduced surface tension of the Al-based melt. This consequently leads to a decrease in the critical radius for nucleation of IQCs. • Calcium and strontium were added into an Al-Mn and Al-Mn-Cu alloy systems. • Alloys were cast into a copper mould. • The addition of calcium or strontium promotes the formation of QCs. • Calcium and strontium are not present in QCs. • Effectiveness of both elements is attributed to a reduction in the surface tension. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Alloys & Compounds 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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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.jallcom.2026.186847
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Quasicrystals
        Type: general
      – SubjectFull: Aluminum-manganese alloys
        Type: general
      – SubjectFull: Calcium alloys
        Type: general
      – SubjectFull: Strontium
        Type: general
      – SubjectFull: Surface tension
        Type: general
      – SubjectFull: Nucleation
        Type: general
      – SubjectFull: Metal castings
        Type: general
    Titles:
      – TitleFull: Influence of copper, calcium and strontium on the formation of quasicrystals in Al-Mn-based alloys.
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            NameFull: Naglič, Iztok
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            NameFull: Leskovar, Blaž
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            NameFull: Zaky, Adam
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          Dates:
            – D: 05
              M: 03
              Text: Mar2026
              Type: published
              Y: 2026
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              Value: 1057
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