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Numerical Analysis of Fine Particle Dynamics in Supersonic Hybrid Aerosol Deposition.

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Title: Numerical Analysis of Fine Particle Dynamics in Supersonic Hybrid Aerosol Deposition.
Authors: Akedo, Yuki1,2 (AUTHOR) akedo.yuki.sm@alumni.tsukuba.ac.jp, Shinoda, Kentaro2 (AUTHOR), Fujino, Takayasu3 (AUTHOR)
Source: Journal of Thermal Spray Technology. Jun2026, Vol. 35 Issue 5, p1912-1926. 15p.
Subjects: Numerical analysis, Particle dynamics analysis, Compressible flow, Plasma jets, Plasma spraying, Size reduction of materials
Abstract: In hybrid aerosol deposition (HAD), fine ceramic particles are sprayed by a thermal nonequilibrium plasma jet to fabricate a film under reduced pressure. The mechanism of the particle deposition is expected to be room-temperature impact consolidation (RTIC) with plasma assistance. Our previous work demonstrated that using a supersonic nozzle in HAD (called supersonic HAD) is effective in increasing particle velocity and film hardness. Furthermore, the film deposited via HAD with a stationary plasma torch and substrate had an M-shaped cross section. However, the factors that caused this film's shape have been unclarified. In this study, therefore, a rotationally symmetric, two-dimensional (r–z) numerical analysis was performed to clarify the particle behavior in supersonic HAD. The numerical results showed that small particles, which would be deposited in HAD, impact the substrate over a wide area, whereas large particles, which can abrade the surface of the film and substrate, impact the central region of the substrate. This difference in the particle-impact region depending on particle size leads to a deposited film with an M-shaped cross section. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Thermal Spray Technology is the property of Springer Nature 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: 194893209
AccessLevel: 6
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PubTypeId: academicJournal
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  Data: Numerical Analysis of Fine Particle Dynamics in Supersonic Hybrid Aerosol Deposition.
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  Data: <searchLink fieldCode="AR" term="%22Akedo%2C+Yuki%22">Akedo, Yuki</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> akedo.yuki.sm@alumni.tsukuba.ac.jp</i><br /><searchLink fieldCode="AR" term="%22Shinoda%2C+Kentaro%22">Shinoda, Kentaro</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Fujino%2C+Takayasu%22">Fujino, Takayasu</searchLink><relatesTo>3</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Thermal+Spray+Technology%22">Journal of Thermal Spray Technology</searchLink>. Jun2026, Vol. 35 Issue 5, p1912-1926. 15p.
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  Data: <searchLink fieldCode="DE" term="%22Numerical+analysis%22">Numerical analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Particle+dynamics+analysis%22">Particle dynamics analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Compressible+flow%22">Compressible flow</searchLink><br /><searchLink fieldCode="DE" term="%22Plasma+jets%22">Plasma jets</searchLink><br /><searchLink fieldCode="DE" term="%22Plasma+spraying%22">Plasma spraying</searchLink><br /><searchLink fieldCode="DE" term="%22Size+reduction+of+materials%22">Size reduction of materials</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: In hybrid aerosol deposition (HAD), fine ceramic particles are sprayed by a thermal nonequilibrium plasma jet to fabricate a film under reduced pressure. The mechanism of the particle deposition is expected to be room-temperature impact consolidation (RTIC) with plasma assistance. Our previous work demonstrated that using a supersonic nozzle in HAD (called supersonic HAD) is effective in increasing particle velocity and film hardness. Furthermore, the film deposited via HAD with a stationary plasma torch and substrate had an M-shaped cross section. However, the factors that caused this film's shape have been unclarified. In this study, therefore, a rotationally symmetric, two-dimensional (r–z) numerical analysis was performed to clarify the particle behavior in supersonic HAD. The numerical results showed that small particles, which would be deposited in HAD, impact the substrate over a wide area, whereas large particles, which can abrade the surface of the film and substrate, impact the central region of the substrate. This difference in the particle-impact region depending on particle size leads to a deposited film with an M-shaped cross section. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Thermal Spray Technology is the property of Springer Nature 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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    Identifiers:
      – Type: doi
        Value: 10.1007/s11666-026-02209-2
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 15
        StartPage: 1912
    Subjects:
      – SubjectFull: Numerical analysis
        Type: general
      – SubjectFull: Particle dynamics analysis
        Type: general
      – SubjectFull: Compressible flow
        Type: general
      – SubjectFull: Plasma jets
        Type: general
      – SubjectFull: Plasma spraying
        Type: general
      – SubjectFull: Size reduction of materials
        Type: general
    Titles:
      – TitleFull: Numerical Analysis of Fine Particle Dynamics in Supersonic Hybrid Aerosol Deposition.
        Type: main
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      – PersonEntity:
          Name:
            NameFull: Akedo, Yuki
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          Name:
            NameFull: Shinoda, Kentaro
      – PersonEntity:
          Name:
            NameFull: Fujino, Takayasu
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          Dates:
            – D: 01
              M: 06
              Text: Jun2026
              Type: published
              Y: 2026
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              Value: 10599630
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              Value: 35
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              Value: 5
          Titles:
            – TitleFull: Journal of Thermal Spray Technology
              Type: main
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