Methods for producing foamed aluminum

Voronin, Sergey; Loboda, Pavel

doi:10.1063/1.5017412

Cited by 2 publications

(2 citation statements)

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“…Материалы с отрытой пористостью образуют пространственную сетку, т. е. сеть соединенных друг с другом полостей. Материалы с закрытой пористостью в своей структуре имеют поры, которые представляют собой замкнутую ячейку, в которой заперт газ [15].…”

Section: структура и перспективы применения в качестве адсорбента пор...unclassified

Structure and Prospects for Application of Porous Oxidized Aluminum as an Adsorbent

KOMAROV,

ORDA,

CHERNIAVSKAYA

et al. 2024

MMMM

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The paper presents the results of microarc oxidation of porous aluminum made of alloys AlSi15, Д16 (D16) and AlMg6. According to research, on the surface of the sample, a composite oxide-ceramic coating is formed, consisting of mullite 3Al2O3‧2SiO2 and (or) various forms of aluminum oxide (α-, γ-Al2O3). It is shown that on the surface of porous aluminum, as well as in the pores of a cast sample, a coating is formed consisting of electropositive and electronegative sorption materials, aluminum oxides and aluminosilicates. Moreover, by changing the composition of the aluminum alloy and micro-arc oxidation modes, it is possible to control the phase composition of the coating being formed, which opens up the possibility of creating selective filter devices to retain either anionic or cationic inorganic compounds and microbiological objects.

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Section: структура и перспективы применения в качестве адсорбента пор...unclassified

Structure and Prospects for Application of Porous Oxidized Aluminum as an Adsorbent

KOMAROV,

ORDA,

CHERNIAVSKAYA

et al. 2024

MMMM

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“…Aluminum foam, as a new type of material integrating structure and functionalization, has excellent energy absorption, vibration damping, sound absorption [2,3], thermal insulation [4,5], and electromagnetic shielding properties and has been widely used in military and industrial fields [6,7]. Moreover, there have been considerable research results on the preparation techniques [8][9][10][11] and mechanical properties [12][13][14] and the constitutive relationship [15][16][17] of their materials in the corresponding scenarios. For example, Cowie and Irausquin [18,19] investigated the microstructural characteristics and damage modes of aluminum foam after impact through dynamic impact experiments.…”

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confidence: 99%

The Compressive Properties and Deformation Mechanism of Closed-Cell Aluminum Foam with High Porosity after High-Temperature Treatment

et al. 2022

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As a new type of structurally functional material, aluminum foam is widely used in civil engineering due to its excellent noise and energy reduction, thermal insulation, and fire protection properties. However, systematic research into the mechanical properties, application technology, and specification standards of aluminum foam materials in civil engineering application scenarios is lacking. In this work, a special experimental study on the mechanical properties and deformation mechanism of closed-cell aluminum foam materials in compression after fire was carried out. The mechanism of deformation and failure of closed-cell aluminum foam was revealed, and the variation in the mechanical properties of closed-cell aluminum foam with porosity, and heating temperature were investigated. On the basis of the experimental results, the correlation function between material parameters and material porosity in the Liu–Subhash constitutive model was established through multiparameter regression analysis. Then, an intrinsic structure model of aluminum foam that can consider porosity was proposed. The research results show that (1) the compression deformation process of closed-cell aluminum foam specimens exhibits significant stage characteristics: a quasi-elastic stage of quasi-elastic deformation of the matrix and cell structure → a plateau stage of cell structure destabilization and damage → a densification stage of cell collapse and stacking. (2) As the porosity decreases, the aluminum foam material becomes more resistant to compressive deformation and shows better compressive mechanical properties overall. With an increase in the heat treatment temperature, the elastic gradient, compressive proof strength, and plateau stress of the aluminum foam material show a small decrease in the overall trend. (3) The predicted values of the intrinsic structure model of closed-cell aluminum foam are in good agreement with the experimental results, indicating that the model can efficiently characterize the stress–strain process of the material and is referable.

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Methods for producing foamed aluminum

Cited by 2 publications

References 0 publications

Structure and Prospects for Application of Porous Oxidized Aluminum as an Adsorbent

Structure and Prospects for Application of Porous Oxidized Aluminum as an Adsorbent

The Compressive Properties and Deformation Mechanism of Closed-Cell Aluminum Foam with High Porosity after High-Temperature Treatment

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