Mono-sized spherical Al-Si alloy particles for energy storage materials prepared by pulsated orifice ejection method

Yunxiu LIAN, Fumin XU, Wei DONG

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Journal of Materials Engineering ›› 2025, Vol. 53 ›› Issue (6) : 145-153. DOI: 10.11868/j.issn.1001-4381.2024.000545
RESEARCH ARTICLE

Mono-sized spherical Al-Si alloy particles for energy storage materials prepared by pulsated orifice ejection method

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Abstract

Metal phase-change materials （PCMs） show great potential in improving energy efficiency and conservation. In this study， A30， H30， A50 and H50 alloy particles are successfully synthesized using the pulsated orifice ejection method （POEM） as high-temperature thermal storage PCMs. The results show that the POEM-fabricated particles exhibit mono-sized， high sphericity， high purity， smooth and dense surfaces， and uniform particle size distribution. Moreover， thermal performance analysis reveals that these particles possess excellent thermal stability and high latent heat values. The melting latent heats of A30， H30， A50 and H50 particles are 347.54， 359.67， 262.63， 284.82 J/g， respectively， with corresponding solidification latent heats of 366.24， 377.50， 256.82， 296.47 J/g. After multiple thermal cycles， these particles maintain high energy storage density and good structural stability. Al-Si alloy particles prepared via POEM demonstrate significant application potential in the field of phase-change energy storage， providing important evidence for the development of novel and high-efficiency energy storage materials.

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POEM / Al-Si alloy particle / metal phase-change material / energy storage

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Yunxiu LIAN , Fumin XU , Wei DONG. Mono-sized spherical Al-Si alloy particles for energy storage materials prepared by pulsated orifice ejection method. Journal of Materials Engineering. 2025, 53(6): 145-153 https://doi.org/10.11868/j.issn.1001-4381.2024.000545

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