Nano-deposition on 3-D open-cell aluminum foam materials for improved energy absorption capacity

Wei Wang, Rigoberto Burgueño, Jung Wuk Hong, Ilsoon Lee

    Research output: Research - peer-reviewArticle

    • 11 Citations

    Abstract

    Open cell aluminum (Al) foams have been used as energy absorbers for decades. Their energy absorption capacity can be enhanced by thickening the foam struts, or increasing the foam's relative density. However, the enhancement is compromised by the inherent characteristics of its stress-strain property relationship, whereby upon homogeneous strut thickening, an increase in the plateau stress without a reduction in densification strain cannot be achieved. In this work, to overcome this inherent barrier, nano-crystalline copper (Cu) was deposited onto the Al foam and novel 3-D Cu/Al, heterogeneously thickened, composite foam structured materials were fabricated and tested for the first time. A non-cyanide nano-crystalline copper electro-deposition system was setup for the coating of open-cell Al foam, and, the energy absorption capacity as a function of foam pore size and Cu coating thickness was investigated. A variety of characterization methods confirmed the nano-crystalline structure of the Cu deposition (38. nm). The energy absorption capacity of Al foams (with average strut thickness of 192 μm) reinforced with a 60 μm Cu coating was 3 times greater than that of plain foams. The compressive stress-strain response of the composite samples showed no significant reduction of the densification strain compared to the uncoated foams due to the small change in the foam strut thickness and pore size. A comparison between thin Cu-coated and uncoated Al foam samples with the same overall strut thickness (i.e., same effective volume density and porosity) showed that the nano-reinforced foams had superior energy absorption capacity over plain foams with the same overall thickness, (~2 times greater).

    LanguageEnglish (US)
    Pages75-82
    Number of pages8
    JournalMaterials Science and Engineering A
    Volume572
    DOIs
    StatePublished - Jun 10 2013

    Profile

    energy absorption
    foams
    aluminum
    cells
    Energy absorption
    Aluminum
    Foams
    struts
    Struts
    porosity
    coatings
    Crystalline materials
    Coatings
    densification
    plains
    copper
    composite materials
    Densification
    Pore size
    Copper

    Keywords

    • 3-D electro-deposition
    • Energy absorption capacity
    • Nano-crystalline
    • Open-cell foam

    ASJC Scopus subject areas

    • Materials Science(all)
    • Condensed Matter Physics
    • Mechanical Engineering
    • Mechanics of Materials

    Cite this

    Nano-deposition on 3-D open-cell aluminum foam materials for improved energy absorption capacity. / Wang, Wei; Burgueño, Rigoberto; Hong, Jung Wuk; Lee, Ilsoon.

    In: Materials Science and Engineering A, Vol. 572, 10.06.2013, p. 75-82.

    Research output: Research - peer-reviewArticle

    @article{09b55c07b0084e2e88bcae7d2e9c4d8d,
    title = "Nano-deposition on 3-D open-cell aluminum foam materials for improved energy absorption capacity",
    abstract = "Open cell aluminum (Al) foams have been used as energy absorbers for decades. Their energy absorption capacity can be enhanced by thickening the foam struts, or increasing the foam's relative density. However, the enhancement is compromised by the inherent characteristics of its stress-strain property relationship, whereby upon homogeneous strut thickening, an increase in the plateau stress without a reduction in densification strain cannot be achieved. In this work, to overcome this inherent barrier, nano-crystalline copper (Cu) was deposited onto the Al foam and novel 3-D Cu/Al, heterogeneously thickened, composite foam structured materials were fabricated and tested for the first time. A non-cyanide nano-crystalline copper electro-deposition system was setup for the coating of open-cell Al foam, and, the energy absorption capacity as a function of foam pore size and Cu coating thickness was investigated. A variety of characterization methods confirmed the nano-crystalline structure of the Cu deposition (38. nm). The energy absorption capacity of Al foams (with average strut thickness of 192 μm) reinforced with a 60 μm Cu coating was 3 times greater than that of plain foams. The compressive stress-strain response of the composite samples showed no significant reduction of the densification strain compared to the uncoated foams due to the small change in the foam strut thickness and pore size. A comparison between thin Cu-coated and uncoated Al foam samples with the same overall strut thickness (i.e., same effective volume density and porosity) showed that the nano-reinforced foams had superior energy absorption capacity over plain foams with the same overall thickness, (~2 times greater).",
    keywords = "3-D electro-deposition, Energy absorption capacity, Nano-crystalline, Open-cell foam",
    author = "Wei Wang and Rigoberto Burgueño and Hong, {Jung Wuk} and Ilsoon Lee",
    year = "2013",
    month = "6",
    doi = "10.1016/j.msea.2013.02.032",
    volume = "572",
    pages = "75--82",
    journal = "Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing",
    issn = "0921-5093",
    publisher = "Elsevier BV",

    }

    TY - JOUR

    T1 - Nano-deposition on 3-D open-cell aluminum foam materials for improved energy absorption capacity

    AU - Wang,Wei

    AU - Burgueño,Rigoberto

    AU - Hong,Jung Wuk

    AU - Lee,Ilsoon

    PY - 2013/6/10

    Y1 - 2013/6/10

    N2 - Open cell aluminum (Al) foams have been used as energy absorbers for decades. Their energy absorption capacity can be enhanced by thickening the foam struts, or increasing the foam's relative density. However, the enhancement is compromised by the inherent characteristics of its stress-strain property relationship, whereby upon homogeneous strut thickening, an increase in the plateau stress without a reduction in densification strain cannot be achieved. In this work, to overcome this inherent barrier, nano-crystalline copper (Cu) was deposited onto the Al foam and novel 3-D Cu/Al, heterogeneously thickened, composite foam structured materials were fabricated and tested for the first time. A non-cyanide nano-crystalline copper electro-deposition system was setup for the coating of open-cell Al foam, and, the energy absorption capacity as a function of foam pore size and Cu coating thickness was investigated. A variety of characterization methods confirmed the nano-crystalline structure of the Cu deposition (38. nm). The energy absorption capacity of Al foams (with average strut thickness of 192 μm) reinforced with a 60 μm Cu coating was 3 times greater than that of plain foams. The compressive stress-strain response of the composite samples showed no significant reduction of the densification strain compared to the uncoated foams due to the small change in the foam strut thickness and pore size. A comparison between thin Cu-coated and uncoated Al foam samples with the same overall strut thickness (i.e., same effective volume density and porosity) showed that the nano-reinforced foams had superior energy absorption capacity over plain foams with the same overall thickness, (~2 times greater).

    AB - Open cell aluminum (Al) foams have been used as energy absorbers for decades. Their energy absorption capacity can be enhanced by thickening the foam struts, or increasing the foam's relative density. However, the enhancement is compromised by the inherent characteristics of its stress-strain property relationship, whereby upon homogeneous strut thickening, an increase in the plateau stress without a reduction in densification strain cannot be achieved. In this work, to overcome this inherent barrier, nano-crystalline copper (Cu) was deposited onto the Al foam and novel 3-D Cu/Al, heterogeneously thickened, composite foam structured materials were fabricated and tested for the first time. A non-cyanide nano-crystalline copper electro-deposition system was setup for the coating of open-cell Al foam, and, the energy absorption capacity as a function of foam pore size and Cu coating thickness was investigated. A variety of characterization methods confirmed the nano-crystalline structure of the Cu deposition (38. nm). The energy absorption capacity of Al foams (with average strut thickness of 192 μm) reinforced with a 60 μm Cu coating was 3 times greater than that of plain foams. The compressive stress-strain response of the composite samples showed no significant reduction of the densification strain compared to the uncoated foams due to the small change in the foam strut thickness and pore size. A comparison between thin Cu-coated and uncoated Al foam samples with the same overall strut thickness (i.e., same effective volume density and porosity) showed that the nano-reinforced foams had superior energy absorption capacity over plain foams with the same overall thickness, (~2 times greater).

    KW - 3-D electro-deposition

    KW - Energy absorption capacity

    KW - Nano-crystalline

    KW - Open-cell foam

    UR - http://www.scopus.com/inward/record.url?scp=84874931752&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=84874931752&partnerID=8YFLogxK

    U2 - 10.1016/j.msea.2013.02.032

    DO - 10.1016/j.msea.2013.02.032

    M3 - Article

    VL - 572

    SP - 75

    EP - 82

    JO - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing

    T2 - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing

    JF - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing

    SN - 0921-5093

    ER -