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Ocena właściwości przeciwpożarowych pian aluminiowych i aluminiowo-ceramicznych

Tuchowski Wojciech, Rogala Michał, Kurtz-Orecka Karolina, Gawdzińska Katarzyna, Matuszak Zbigniew

Materiały Budowlane

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2023

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nr 1

27--31

PL

W pracy przedstawiono zastosowanie piany aluminiowej oraz piany aluminiowo-ceramicznej domieszkowanej cząsteczkami węglika krzemu w budownictwie, np. instalacjach fotowoltaicznych. Przeprowadzone badania reakcji na ogień wykazały, że struktury porowate mają wyższą temperaturę topnienia niż materiał stały. Ponadto ścianki piany pokryte są cienką warstwą Al2O3, co podwyższa wartość temperatury topnienia struktury. Obie badane piany, ze względu na swoją niepalność, mogą być stosowane w budownictwie lub w przemyśle morskim, po przeprowadzeniu badań uzupełniających określających ich klasę palności. Przeprowadzane badania są badaniami wstępnymi związanymi z doborem materiałów porowatych przeznaczonych na izolacje.

EN

The paper presents the application of aluminium foam and aluminium-ceramic foam, doped with silicon carbide particles as a part of photovoltaic installations. The tests of reaction to fire showed, that the porous structures have a higher melting point than the solid material. Moreover, the foam walls are covered with a thin layer of Al2O3, which raises the melting point of the structure. Both investigated foams, due to their non-flammability, can be used in civil engineering or in the marine industry, after conducting supplementary tests determining their flammability class. The tests carried out are preliminary tests related to the selection of porous materials dedicated to insulation.

2

Analysis and Assessment of Aluminum and Aluminum-Ceramic Foams Structure

Rogala Michał, Tuchowski Wojciech, Czarnecka-Komorowska Dorota, Gawdzińska Katarzyna

Advances in Science and Technology. Research Journal

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2022

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Vol. 16, no 4

287--297

EN

The paper presents an analysis of the aluminum porous structure serving as a structural material used in the automotive or marine industry. The subject of the research is the analysis of the mechanical properties of the aluminum porous structure, in particular its ability to absorb energy. The paper presents a description of the manufacturing process, quality control in the form of a statistical capture of geometric parameters of the foam made, as well as an X-ray microanalysis of the chemical composition of EPMA-EDS and the dispersion of components within the structure. In addition, results of static axial compression analysis of aluminum and composite foam specimens are presented.

3

Description of selected structural elements of composite foams using statistical methods

Gawdzińska K., Grabian J., Pędzich Z., Przetakiewicz W.

Archives of Foundry Engineering

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2011

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Vol. 11, iss. 2 spec.

53--58

EN

This article makes use of images from a computer tomograph for the description of selected structure elements of metal and composite foams by means of statistical methods. Besides, compression stress of the tested materials has been determined.

4

Assessment of possible control of selected operational properties of metal-ceramic foams

Grabian J., Przetakiewicz W.

Archives of Foundry Engineering

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2010

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Vol. 10, iss. 1 spec.

419--422

EN

Effective use of metal foams, an increasingly popular group of machine structural materials, often requires that their properties be adjusted to customer needs. The growing popularity of foams is due to their specific properties, i.e. capability of absorbing the impact and explosion energy, increasing the stiffness of structural components such as panels of closed profiles, ability to damp vibrations, relatively good thermal insulation, dispersion of electromagnetic waves, resistance to high temperature and others. One of the operational properties of metal foams that is essential for their use in various structures is the resistance to single-axial static compression. Initial studies aimed at the determination of how metal foam behaves when statically compressed. Foam samples were made by blowing gas into liquid metal. The composition of metal foam (AlSi11) was differentiated by introducing ceramic particles SiC. By changing technological parameters of the foaming process we could affect the size of gaseous bubbles and their homogeneity. By comparing the structure of foams and their properties we found significant differences in the curve x = f(P) of foam sample affected by the force (P). It has been proved that one operational property, namely the resistance to compression, can be indirectly controlled, that is its determined specific structure can be obtained by maintaining specific technological parameters.