Ferromagnetic solid state refrigeration with tunable magnetic characteristics for green energy magnetic device

IF 2.8 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY Applied Physics A Pub Date : 2025-04-14 DOI:10.1007/s00339-025-08467-1

Mahmoud A. Hamad, Tahani R. Aldhafeeri, Hatem R. Alamri, Mohamed E. Harb

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Abstract

The magnetocaloric effect(MCE) of the (Fe_0.5Cu_0.5)₆₀Zr₄₀ alloy has been investigated by phenomenological model, estimating magnetic entropy change (∆S_M) and heat capacity change. The results indicate that MCE of (Fe_0.5Cu_0.5)₆₀Zr₄₀ alloy can be controlled and tuned by several magnetic fields. Furthermore, the study of ∆S_M curves predicts how to expand the temperature range for exploiting (Fe_0.5Cu_0.5)₆₀Zr₄₀ in magnetic refrigeration. ∆S_M reaches a peak of about 0.5 J/Kg K at 112 K with δT_FWHM = 227 K and RCP = 102 J/Kg under 5 T applied field variation. (Fe_0.5Cu_0.5)₆₀Zr₄₀ alloy has a potential application for magnetic refrigerants over a wide temperature range, especially its high electrical resistivity leads to decreased eddy current losses, covering a significant range of temperature between 0 K and room temperature. Therefore, these advantages make (Fe_0.5Cu_0.5)₆₀Zr₄₀ alloy potentially practical for efficient cooling devices.

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磁性特性可调的固态铁磁制冷绿色能源磁性装置

采用现象学模型研究了（Fe0.5Cu0.5）60Zr40合金的磁热效应（MCE），估计了磁熵变化（∆SM）和热容变化。结果表明，（Fe0.5Cu0.5）60Zr40合金的MCE可以通过多个磁场控制和调谐。此外，通过对∆SM曲线的研究，预测了如何扩大（Fe0.5Cu0.5）60Zr40在磁制冷中的开采温度范围。在5 T的田间变化下，∆SM在112 K时达到峰值，δTFWHM = 227 K, RCP = 102 J/Kg。（Fe0.5Cu0.5）60Zr40合金在较宽的温度范围内具有作为磁性制冷剂的潜在应用，特别是其高电阻率导致涡流损耗降低，覆盖了0 K至室温之间的很大温度范围。因此，这些优点使得（Fe0.5Cu0.5）60Zr40合金在高效冷却装置中具有潜在的实用性。

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来源期刊

Applied Physics A 工程技术-材料科学：综合

CiteScore

4.80

自引率

7.40%

发文量

964

审稿时长

38 days

期刊介绍： Applied Physics A publishes experimental and theoretical investigations in applied physics as regular articles, rapid communications, and invited papers. The distinguished 30-member Board of Editors reflects the interdisciplinary approach of the journal and ensures the highest quality of peer review.