通过调整晶体结构和晶粒尺寸，具有优异的磁致伸缩性能

IF 3.6 2区物理与天体物理 Q2 PHYSICS, APPLIED

Applied Physics Letters Pub Date : 2025-04-14 DOI:10.1063/5.0257974

Qizhong Zhao, Kun Wang, Jiale Guo, Fanghua Tian, Xiaojing Zhang, Kaiyan Cao, Yin Zhang, Chao Zhou, Sen Yang, Xiaoping Song

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引用次数: 0

摘要

磁致伸缩材料由于其在传感器、致动器和能量转换器中的潜在应用而引起了人们的极大兴趣。对于磁致伸缩材料，不同的制备工艺对其磁致伸缩效果的好坏至关重要。本文合成了Ni50Mn27Ga23合金的铸态、定向凝固态和熔融纺丝态，并对其结构、磁性和磁致伸缩性能进行了研究。结果表明，制备方法对晶粒尺寸和生长取向有较大影响。较小的晶粒尺寸和增大的晶界阻碍了外场作用下的畴重取向，导致磁致伸缩减小和饱和场增大。生长方向也影响饱和，进一步影响磁性和磁致伸缩性能。这项工作为结构与磁致伸缩的关系提供了有价值的见解，为开发优良的磁致伸缩材料提供了指导。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Excellent magnetostrictive properties via tuning the crystal structure and grain size

Magnetostrictive materials are of significant interest due to their potential applications in sensors, actuators, and energy converters. For magnetostrictive materials, different preparation processes are crucial to the quality of their magnetostrictive effect. In this work, Ni50Mn27Ga23 alloys in as-cast, directionally solidified, and melt-spun states were synthesized, and their structural, magnetic, and magnetostrictive properties were investigated. The results reveal that grain size and growth orientation are strongly influenced by the preparation method. Smaller grain sizes and increased grain boundaries hinder domain reorientation under external fields, leading to reduced magnetostriction and higher saturation fields. Growth orientation also affects saturation, further impacting both magnetic and magnetostrictive properties. This work provides valuable insights into the structure–magnetostriction relationship, offering guidance for developing excellent magnetostrictive materials.

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来源期刊

Applied Physics Letters 物理-物理：应用

CiteScore

6.40

自引率

10.00%

发文量

1821

审稿时长

1.6 months

期刊介绍： Applied Physics Letters (APL) features concise, up-to-date reports on significant new findings in applied physics. Emphasizing rapid dissemination of key data and new physical insights, APL offers prompt publication of new experimental and theoretical papers reporting applications of physics phenomena to all branches of science, engineering, and modern technology. In addition to regular articles, the journal also publishes invited Fast Track, Perspectives, and in-depth Editorials which report on cutting-edge areas in applied physics. APL Perspectives are forward-looking invited letters which highlight recent developments or discoveries. Emphasis is placed on very recent developments, potentially disruptive technologies, open questions and possible solutions. They also include a mini-roadmap detailing where the community should direct efforts in order for the phenomena to be viable for application and the challenges associated with meeting that performance threshold. Perspectives are characterized by personal viewpoints and opinions of recognized experts in the field. Fast Track articles are invited original research articles that report results that are particularly novel and important or provide a significant advancement in an emerging field. Because of the urgency and scientific importance of the work, the peer review process is accelerated. If, during the review process, it becomes apparent that the paper does not meet the Fast Track criterion, it is returned to a normal track.