Improvement in magnetocaloric, mechanical and corrosion properties of La1.4Fe11Co0.8Si1.2 bulk composites prepared by hot-deformation and diffusion annealing

IF 2.5 3区 材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY
X.C. Zhong , Z.H. Liao , G.P. Li , X. Huang , J.H. Huang , C.L. Liu , Y.D. Zhang , Z.W. Liu , D.L. Jiao , W.Q. Qiu , R.V. Ramanujan
{"title":"Improvement in magnetocaloric, mechanical and corrosion properties of La1.4Fe11Co0.8Si1.2 bulk composites prepared by hot-deformation and diffusion annealing","authors":"X.C. Zhong ,&nbsp;Z.H. Liao ,&nbsp;G.P. Li ,&nbsp;X. Huang ,&nbsp;J.H. Huang ,&nbsp;C.L. Liu ,&nbsp;Y.D. Zhang ,&nbsp;Z.W. Liu ,&nbsp;D.L. Jiao ,&nbsp;W.Q. Qiu ,&nbsp;R.V. Ramanujan","doi":"10.1016/j.jmmm.2025.172944","DOIUrl":null,"url":null,"abstract":"<div><div>La-Fe-Si alloys are of high interest for near room temperature magnetocaloric applications. La<sub>1.4</sub>Fe<sub>11</sub>Co<sub>0.8</sub>Si<sub>1.2</sub> magnetocaloric composites were prepared by hot-deformation and diffusion annealing to improve the kinetics of the formation rate of the desired 1:13 phase and reduce its brittleness. The effects of La<sub>1.4</sub>Fe<sub>11</sub>Co<sub>0.8</sub>Si<sub>1.2</sub> particle size on the formation of 1:13 phase, as well as the magnetocaloric, mechanical and corrosion properties were investigated. The results showed that the process deployed in this work shortened the annealing time and promoted the formation of 1:13 phase. The initial particle size influenced phase formation during diffusion annealing. For smaller particle size, the 1:13 phase content and microstructural homogeneity were enhanced after annealing. The diffusion distance between the La-rich phase and the α-Fe phase decreased. Significantly, the bulk composites exhibited a large magnetic entropy change (5.6–6.1 J·kg<sup>−1</sup>·K<sup>−1</sup>, <em>μ</em><sub>0</sub>Δ<em>H</em> = 2 T) and high refrigeration cooling power (128.7–142.1 J·kg<sup>−1</sup>) near room temperature owing to its high 1:13 phase content. These composites also had large bending strength and good corrosion resistance. Thus, this processing technology was demonstrated to be a facile method to fabricate magnetocaloric composites with excellent near room temperature performance.</div></div>","PeriodicalId":366,"journal":{"name":"Journal of Magnetism and Magnetic Materials","volume":"622 ","pages":"Article 172944"},"PeriodicalIF":2.5000,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Magnetism and Magnetic Materials","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0304885325001751","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0

Abstract

La-Fe-Si alloys are of high interest for near room temperature magnetocaloric applications. La1.4Fe11Co0.8Si1.2 magnetocaloric composites were prepared by hot-deformation and diffusion annealing to improve the kinetics of the formation rate of the desired 1:13 phase and reduce its brittleness. The effects of La1.4Fe11Co0.8Si1.2 particle size on the formation of 1:13 phase, as well as the magnetocaloric, mechanical and corrosion properties were investigated. The results showed that the process deployed in this work shortened the annealing time and promoted the formation of 1:13 phase. The initial particle size influenced phase formation during diffusion annealing. For smaller particle size, the 1:13 phase content and microstructural homogeneity were enhanced after annealing. The diffusion distance between the La-rich phase and the α-Fe phase decreased. Significantly, the bulk composites exhibited a large magnetic entropy change (5.6–6.1 J·kg−1·K−1, μ0ΔH = 2 T) and high refrigeration cooling power (128.7–142.1 J·kg−1) near room temperature owing to its high 1:13 phase content. These composites also had large bending strength and good corrosion resistance. Thus, this processing technology was demonstrated to be a facile method to fabricate magnetocaloric composites with excellent near room temperature performance.
求助全文
约1分钟内获得全文 求助全文
来源期刊
Journal of Magnetism and Magnetic Materials
Journal of Magnetism and Magnetic Materials 物理-材料科学:综合
CiteScore
5.30
自引率
11.10%
发文量
1149
审稿时长
59 days
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. Main Categories: Full-length articles: Technically original research documents that report results of value to the communities that comprise the journal audience. The link between chemical, structural and microstructural properties on the one hand and magnetic properties on the other hand are encouraged. In addition to general topics covering all areas of magnetism and magnetic materials, the full-length articles also include three sub-sections, focusing on Nanomagnetism, Spintronics and Applications. The sub-section on Nanomagnetism contains articles on magnetic nanoparticles, nanowires, thin films, 2D materials and other nanoscale magnetic materials and their applications. The sub-section on Spintronics contains articles on magnetoresistance, magnetoimpedance, magneto-optical phenomena, Micro-Electro-Mechanical Systems (MEMS), and other topics related to spin current control and magneto-transport phenomena. The sub-section on Applications display papers that focus on applications of magnetic materials. The applications need to show a connection to magnetism. Review articles: Review articles organize, clarify, and summarize existing major works in the areas covered by the Journal and provide comprehensive citations to the full spectrum of relevant literature.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信