Foaming of aluminium–silicon alloy using concentrated solar energy

Solar energy is used for the work reported here as a nonconventional heating system to produce aluminium foam from Al Si alloy precursors produced by powder metallurgy. A commercial precursor in cylindrical bars enclosed in a stainless-steel mould was heated under concentrated solar radiation in a s...

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Veröffentlicht in:Solar energy 2010-06, Vol.84 (6), p.879-887
Hauptverfasser: Cambronero, L.E.G., Cañadas, I., Martínez, D., Ruiz-Román, J.M.
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container_end_page 887
container_issue 6
container_start_page 879
container_title Solar energy
container_volume 84
creator Cambronero, L.E.G.
Cañadas, I.
Martínez, D.
Ruiz-Román, J.M.
description Solar energy is used for the work reported here as a nonconventional heating system to produce aluminium foam from Al Si alloy precursors produced by powder metallurgy. A commercial precursor in cylindrical bars enclosed in a stainless-steel mould was heated under concentrated solar radiation in a solar furnace with varied heating conditions (heating rate, time, and temperature). Concentrated solar energy close to 300 W/cm 2 on the mould is high enough to achieve complete foaming after heating for only 200 s. Under these conditions, the density and pore distribution in the foam change depending on the solar heating parameters and mould design.
doi_str_mv 10.1016/j.solener.2009.11.014
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ispartof Solar energy, 2010-06, Vol.84 (6), p.879-887
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source Access via ScienceDirect (Elsevier)
subjects Alloys
ALUMINIUM
ALUMINIUM ALLOYS
Aluminium foam
Aluminium foams
Aluminum
Applied sciences
DENSITY
DESIGN
Energy
Equipments, installations and applications
Exact sciences and technology
FABRICATION
Foaming treatment
FOAMS
HEATING RATE
Natural energy
PORE STRUCTURE
Powder metallurgy
Silicon
SILICON ALLOYS
SOLAR ENERGY
SOLAR FURNACES
SOLAR HEATING
Solar thermal conversion
TEMPERATURE DEPENDENCE
TIME DEPENDENCE
title Foaming of aluminium–silicon alloy using concentrated solar energy
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