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基于海斯勒合金的电子沉积纳米线用于形状记忆和磁热应用

Michal Varga¹, Ladislav Galdun², Marek Vronka³

¹Faculty of Materials, Metallurgy and Recycling, Technical University of Kosice, Letna 9, 040 01 Kosice, Slovakia.

Materials (Basel, Switzerland)

|January 23, 2024

概括

这项研究制造了新的Heusler合金纳米线,包括Ni-Fe-Ga,Ni-Fe-In和Ni-Fe-Sn组成. Ni-Fe-Ga纳米线显示出潜在应用的有希望的磁热性质.

科学领域:

材料科学材料科学材料科学
凝聚物质物理学凝聚物质物理学
纳米技术纳米技术

背景情况:

功能性豪斯勒合金对于先进的磁性应用至关重要.
将Heusler合金缩小到纳米线具有独特的挑战和机遇.
以前对Ni-Fe-Ga纳米材料的研究表明,在室温以上的功能性行为.

研究的目的:

调查新型海斯勒合金纳米线的制造和性能.
为了探索纳米结构Heusler材料中的磁热效应.
开发新方法,用不混合的元素制造纳米尺寸合金.

主要方法:

纳米线制造的理论指南.
豪斯勒合金纳米线的电化学合成.
磁性特性和相位转换的表征.

主要成果:

制造了三个新的海斯勒合金纳米线:Ni₆₆Fe₂₁Ga₁₃,Ni₅₈Fe₂₈In₁₄,以及Ni₅₀Fe₃₁Sn₁₉.
Ni₆₆Fe₂₁Ga₁₃纳米线在约375K时表现出相变,其磁热反应为0.12J·kg^-1·K^-1在1T时.
首次分析Ni₅₈Fe₂₈In₁₄和Ni₅₀Fe₃₁Sn₁₉纳米线的磁性特性.

结论:

通过使用电化学方法,可以成功制造新的Heusler合金纳米线.
Ni-Fe-Ga纳米线显示出显著的磁热热量潜力.
这项工作引入了一种可行的方法,用于从不混合的元素中纳米结构合金.

关键词:

斯勒合金是一种合金.电极位置的电极位置它具有磁热效应.纳米电线纳米线.形状记忆形状记忆形状记忆

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