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MAKING LARGE CLOSED CELL-METAL FOAM FOR STRUCTURAL APPLICATIONS.

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Title: MAKING LARGE CLOSED CELL-METAL FOAM FOR STRUCTURAL APPLICATIONS.
Authors: Paunescu, Lucian1 lucianpaunescu16@gmail.com, Axinte, Sorin Mircea2 sorinaxinte@yahoo.com, Ioana, Adrian3 adyioana@gmail.com
Source: Nonconventional Technologies Review / Revista de Tehnologii Neconventionale. Mar2026, Vol. 30 Issue 1, p3-9. 7p.
Subjects: Metal foams, Microwave heating, Compressive strength, Thermal insulation, Structural engineering, Aluminum foam, Additives, Titanium hydride
Abstract: Commercially recycled aluminum scrap was processed by an own method of melting under the influence of microwaves and atomizing the melt with nitrogen gas jets. Fine aluminum granules together with titanium hydride as an expanding agent and a subsequent addition of very fine alumina powder as a foam stabilizer constituted the materials used to produce large-cell aluminum foam for light structural applications. The material mixture was heated to 753-768 °C in a microwave oven functionally adapted for high temperatures. The use of microwave irradiation of the material allowed to obtain extremely high heating rates (53.4-91.6 °C·min-1) and very short process times. The aluminum foams made in this way had excellent features regarding thermal insulation properties (low values of density and thermal conductivity), a sufficiently high compressive strength and cell size of the foam structure up to almost 2 mm, being suitable for light structural industrial applications. [ABSTRACT FROM AUTHOR]
Copyright of Nonconventional Technologies Review / Revista de Tehnologii Neconventionale is the property of Asociatia Romana de Tehnologii Neconventionale (ARTN) 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: 194630745
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PubType: Academic Journal
PubTypeId: academicJournal
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  Data: MAKING LARGE CLOSED CELL-METAL FOAM FOR STRUCTURAL APPLICATIONS.
– Name: Author
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  Data: <searchLink fieldCode="AR" term="%22Paunescu%2C+Lucian%22">Paunescu, Lucian</searchLink><relatesTo>1</relatesTo><i> lucianpaunescu16@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Axinte%2C+Sorin+Mircea%22">Axinte, Sorin Mircea</searchLink><relatesTo>2</relatesTo><i> sorinaxinte@yahoo.com</i><br /><searchLink fieldCode="AR" term="%22Ioana%2C+Adrian%22">Ioana, Adrian</searchLink><relatesTo>3</relatesTo><i> adyioana@gmail.com</i>
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  Data: <searchLink fieldCode="JN" term="%22Nonconventional+Technologies+Review+%2F+Revista+de+Tehnologii+Neconventionale%22">Nonconventional Technologies Review / Revista de Tehnologii Neconventionale</searchLink>. Mar2026, Vol. 30 Issue 1, p3-9. 7p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Metal+foams%22">Metal foams</searchLink><br /><searchLink fieldCode="DE" term="%22Microwave+heating%22">Microwave heating</searchLink><br /><searchLink fieldCode="DE" term="%22Compressive+strength%22">Compressive strength</searchLink><br /><searchLink fieldCode="DE" term="%22Thermal+insulation%22">Thermal insulation</searchLink><br /><searchLink fieldCode="DE" term="%22Structural+engineering%22">Structural engineering</searchLink><br /><searchLink fieldCode="DE" term="%22Aluminum+foam%22">Aluminum foam</searchLink><br /><searchLink fieldCode="DE" term="%22Additives%22">Additives</searchLink><br /><searchLink fieldCode="DE" term="%22Titanium+hydride%22">Titanium hydride</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Commercially recycled aluminum scrap was processed by an own method of melting under the influence of microwaves and atomizing the melt with nitrogen gas jets. Fine aluminum granules together with titanium hydride as an expanding agent and a subsequent addition of very fine alumina powder as a foam stabilizer constituted the materials used to produce large-cell aluminum foam for light structural applications. The material mixture was heated to 753-768 °C in a microwave oven functionally adapted for high temperatures. The use of microwave irradiation of the material allowed to obtain extremely high heating rates (53.4-91.6 °C·min-1) and very short process times. The aluminum foams made in this way had excellent features regarding thermal insulation properties (low values of density and thermal conductivity), a sufficiently high compressive strength and cell size of the foam structure up to almost 2 mm, being suitable for light structural industrial applications. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Nonconventional Technologies Review / Revista de Tehnologii Neconventionale is the property of Asociatia Romana de Tehnologii Neconventionale (ARTN) 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:
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 7
        StartPage: 3
    Subjects:
      – SubjectFull: Metal foams
        Type: general
      – SubjectFull: Microwave heating
        Type: general
      – SubjectFull: Compressive strength
        Type: general
      – SubjectFull: Thermal insulation
        Type: general
      – SubjectFull: Structural engineering
        Type: general
      – SubjectFull: Aluminum foam
        Type: general
      – SubjectFull: Additives
        Type: general
      – SubjectFull: Titanium hydride
        Type: general
    Titles:
      – TitleFull: MAKING LARGE CLOSED CELL-METAL FOAM FOR STRUCTURAL APPLICATIONS.
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            NameFull: Paunescu, Lucian
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            NameFull: Axinte, Sorin Mircea
      – PersonEntity:
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            NameFull: Ioana, Adrian
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            – D: 01
              M: 03
              Text: Mar2026
              Type: published
              Y: 2026
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              Value: 30
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            – TitleFull: Nonconventional Technologies Review / Revista de Tehnologii Neconventionale
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