Dan Liu , Jianglong Gu , Jinyu Zhang , Jing Bai , Keliang Guo , Yu Zhang , Qingshuang Ma , Qiuzhi Gao , Liang Zuo
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引用次数: 0
Abstract
Magnetic cooling technology based on the magnetocaloric effect has attracted significant attention due to its high efficiency and environmental sustainability. In this work, a multi-element alloying strategy is proposed to meet the practical needs and provide theoretical support for the development of high-performance solid-state refrigeration materials. This study focuses on Ni-Mn-In-based Heusler alloy with large magnetocaloric effect, investigating the effects of Co and Si co-doping on martensite transformation as well as the magnetic and mechanical properties using first-principles calculations. The findings reveal that Si atoms preferentially occupy the sublattice of Mn, while Co and Si atoms exhibit a tendency for aggregated distribution within the Ni-Mn-In alloy. Si doping can significantly reduce the thermal hysteresis (ΔThys) of the alloy, while Co doping is helpful to improve the strength and magnetic properties. Overall, Co and Si co-doping can improve both the strength and toughness of the alloy. This work provides theoretical explanations for experimental phenomena and underlying mechanisms.
期刊介绍:
The Journal of Magnetism and Magnetic Materials provides an important forum for the disclosure and discussion of original contributions covering the whole spectrum of topics, from basic magnetism to the technology and applications of magnetic materials. The journal encourages greater interaction between the basic and applied sub-disciplines of magnetism with comprehensive review articles, in addition to full-length contributions. In addition, other categories of contributions are welcome, including Critical Focused issues, Current Perspectives and Outreach to the General Public.
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