Thermal properties and microstructure of Al–Sn alloys

Manasijević, Dragan; Balanović, Ljubiša; Marković, Ivana; Gorgievski, Milan; Stamenković, Uroš; Kovačević, Avram

doi:10.1016/j.jpcs.2024.112297

Article Metadata only M21

2024

Manasijević, Dragan
Balanović, Ljubiša
Marković, Ivana
Gorgievski, Milan
Stamenković, Uroš
Kovačević, Avram

Elsevier Ltd.

Journal of Physics and Chemistry of Solids

195

112297

English

M21 - Paper in a top international journal

The 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.

451-03-65/2024–03/200131

Al–Sn alloys, Microstructure, Phase change alloy, Latent heat, Thermal conductivity

DOI

10.1016/j.jpcs.2024.112297

ISSN

1879-2553
0022-3697

URI

https://repozitorijum.tfbor.bg.ac.rs/handle/...

Scopus

OpenCitations

dc.rights.license	ARR
dc.date.available	2024-12-10T09:27:04Z
dc.date.issued	2024
dc.identifier.issn	1879-2553
dc.identifier.issn	0022-3697
dc.identifier.doi	10.1016/j.jpcs.2024.112297
dc.identifier.uri	https://repozitorijum.tfbor.bg.ac.rs/handle/123456789/5906
dc.description.abstract	The 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.sponsorship	451-03-65/2024–03/200131
dc.language.iso	en
dc.publisher	Elsevier Ltd.
dc.rights.uri	All rights reserved
dc.source	Journal of Physics and Chemistry of Solids
dc.subject	Al–Sn alloys
dc.subject	Microstructure
dc.subject	Phase change alloy
dc.subject	Latent heat
dc.subject	Thermal conductivity
dc.title	Thermal properties and microstructure of Al–Sn alloys
dc.type	article
dc.type.version	publishedVersion
dc.citation.volume	195
dc.creator	Manasijević, Dragan
dc.citation.spage	112297
dc.citation.rank	M21
dc.creator	Balanović, Ljubiša
dc.creator	Marković, Ivana
dc.creator	Gorgievski, Milan
dc.creator	Stamenković, Uroš
dc.creator	Kovačević, Avram
dc.date.accessioned	2024-12-10T09:27:04Z


Thermal properties and microstructure of Al–Sn alloys	2