Thermal properties and microstructure of Al–Sn alloys

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dc.citation.rankM21
dc.citation.spage112297
dc.citation.volume195
dc.contributor.authorManasijević, Dragan
dc.contributor.authorBalanović, Ljubiša
dc.contributor.authorMarković, Ivana
dc.contributor.authorGorgievski, Milan
dc.contributor.authorStamenković, Uroš
dc.contributor.authorKovačević, Avram
dc.date.accessioned2024-12-10T09:27:04Z
dc.date.available2024-12-10T09:27:04Z
dc.date.issued2024
dc.description.abstractThe Al–Sn alloys feature excellent wear and corrosion resistance, along with good mechanical properties. They are mostly used as bearing materials. However, the application of these alloys as phase change materials (PCMs) for thermal energy storage (TES) has recently been suggested. To assess the adequacy of these alloys in a given area, a detailed evaluation of their thermal properties is required. In the present study, Al–Sn alloys with 11.7, 22.4, 32.8, 41.1, and 53.4 at.% Sn were produced by melting of pure metals. The melt was continuously stirred to avoid segregation, after which casting was carried out in a stainless steel mold. The obtained ingots had a homogeneous microstructure without the appearance of cracks and pores. The thermal diffusivities of the solid Al–Sn alloys in the temperature interval 25–150 ◦C were measured using the light flash method. The densities at room temperature were measured by the Archimedes method, and the specific heat capacities at different temperatures were calculated using the calculation of phase diagrams (CALPHAD) method. Then the thermal conductivities for studied Al–Sn alloys were obtained by the specific conversion equation. The phase transition temperatures and related heat effects were studied using differential scanning calorimetry (DSC). Variations of thermal conductivity with composition and temperature were determined as well as variation of latent heat of fusion with alloy composition. Moreover, the microstructures and phase compositions of the alloys were examined using scanning electron microscopy (SEM) combined with energy dispersive spectrometry (EDS). The present research results provide important information on the thermal properties and microstructure of the Al–Sn alloys for designing new PCM for thermal energy storage.
dc.description.sponsorship451-03-65/2024–03/200131
dc.identifier.doi10.1016/j.jpcs.2024.112297
dc.identifier.issn1879-2553
dc.identifier.issn0022-3697
dc.identifier.urihttps://repozitorijum.tfbor.bg.ac.rs/handle/123456789/5906
dc.language.isoen
dc.publisherElsevier Ltd.
dc.rights.licenseARR
dc.rights.uriAll rights reserved
dc.sourceJournal of Physics and Chemistry of Solids
dc.subjectAl–Sn alloys
dc.subjectMicrostructure
dc.subjectPhase change alloy
dc.subjectLatent heat
dc.subjectThermal conductivity
dc.titleThermal properties and microstructure of Al–Sn alloys
dc.typearticle
dc.type.versionpublishedVersion

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