磁性对 Nd-Ce-Fe-B 烧结磁体热传输的抑制作用

IF 2.5 4区 工程技术 Q3 CHEMISTRY, PHYSICAL
Bo Peng, Jinyuan Xu, Jianhua Xu, Xiong Zheng, Huimin Wang, Peng Tan, Zhenzhen Qin, Guangzhao Qin
{"title":"磁性对 Nd-Ce-Fe-B 烧结磁体热传输的抑制作用","authors":"Bo Peng,&nbsp;Jinyuan Xu,&nbsp;Jianhua Xu,&nbsp;Xiong Zheng,&nbsp;Huimin Wang,&nbsp;Peng Tan,&nbsp;Zhenzhen Qin,&nbsp;Guangzhao Qin","doi":"10.1007/s10765-024-03484-3","DOIUrl":null,"url":null,"abstract":"<div><p>Understanding the influence of magnetism on thermal transport is crucial for ensuring the stability and reliability of heat dissipation in magnetic devices. In this study, we examine the magnetism's impact on thermal transport using the widely utilized Nd-Ce-Fe-B sintered magnet as our focal point. By integrating transient hot wire measurements and multiscale simulations, we assess how magnetism affects thermal conductivity (<i>κ</i>) between its ferromagnetic (FM) and paramagnetic (PM) states. Our analysis reveals that the thermal conductivity in the FM state is lower than in the PM state, indicating magnetism's inhibitory effect on thermal transport in Nd-Ce-Fe-B magnet. This phenomenon can be attributed to the suppressed electron transport in the FM state, which effectively reduces the electronic contribution to <i>κ</i>. To validate our findings, we conduct practical heating experiments at the device level alongside multiscale simulations. This research would significantly contribute to the understanding of thermal transport in magnetic materials, laying the groundwork for the thermal design of innovative devices that incorporate magnetism.</p></div>","PeriodicalId":598,"journal":{"name":"International Journal of Thermophysics","volume":"46 1","pages":""},"PeriodicalIF":2.5000,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"The Inhibitory Effect of Magnetism on the Thermal Transport in Nd-Ce-Fe-B Sintered Magnet\",\"authors\":\"Bo Peng,&nbsp;Jinyuan Xu,&nbsp;Jianhua Xu,&nbsp;Xiong Zheng,&nbsp;Huimin Wang,&nbsp;Peng Tan,&nbsp;Zhenzhen Qin,&nbsp;Guangzhao Qin\",\"doi\":\"10.1007/s10765-024-03484-3\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Understanding the influence of magnetism on thermal transport is crucial for ensuring the stability and reliability of heat dissipation in magnetic devices. In this study, we examine the magnetism's impact on thermal transport using the widely utilized Nd-Ce-Fe-B sintered magnet as our focal point. By integrating transient hot wire measurements and multiscale simulations, we assess how magnetism affects thermal conductivity (<i>κ</i>) between its ferromagnetic (FM) and paramagnetic (PM) states. Our analysis reveals that the thermal conductivity in the FM state is lower than in the PM state, indicating magnetism's inhibitory effect on thermal transport in Nd-Ce-Fe-B magnet. This phenomenon can be attributed to the suppressed electron transport in the FM state, which effectively reduces the electronic contribution to <i>κ</i>. To validate our findings, we conduct practical heating experiments at the device level alongside multiscale simulations. This research would significantly contribute to the understanding of thermal transport in magnetic materials, laying the groundwork for the thermal design of innovative devices that incorporate magnetism.</p></div>\",\"PeriodicalId\":598,\"journal\":{\"name\":\"International Journal of Thermophysics\",\"volume\":\"46 1\",\"pages\":\"\"},\"PeriodicalIF\":2.5000,\"publicationDate\":\"2024-12-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Journal of Thermophysics\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s10765-024-03484-3\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Thermophysics","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s10765-024-03484-3","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0

摘要

了解磁性对热输运的影响对于确保磁性器件散热的稳定性和可靠性至关重要。在这项研究中,我们以广泛使用的Nd-Ce-Fe-B烧结磁体为重点,研究了磁性对热输运的影响。通过整合瞬态热线测量和多尺度模拟,我们评估了磁性如何影响铁磁(FM)和顺磁(PM)状态之间的导热系数(κ)。我们的分析表明,FM状态下的导热系数低于PM状态,表明磁性对Nd-Ce-Fe-B磁体的热输运有抑制作用。这一现象可归因于FM状态下抑制的电子传递,有效地降低了电子对κ的贡献。为了验证我们的发现,我们在设备层面进行了实际的加热实验,同时进行了多尺度模拟。本研究将有助于理解磁性材料中的热输运,为结合磁性的创新器件的热设计奠定基础。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The Inhibitory Effect of Magnetism on the Thermal Transport in Nd-Ce-Fe-B Sintered Magnet

Understanding the influence of magnetism on thermal transport is crucial for ensuring the stability and reliability of heat dissipation in magnetic devices. In this study, we examine the magnetism's impact on thermal transport using the widely utilized Nd-Ce-Fe-B sintered magnet as our focal point. By integrating transient hot wire measurements and multiscale simulations, we assess how magnetism affects thermal conductivity (κ) between its ferromagnetic (FM) and paramagnetic (PM) states. Our analysis reveals that the thermal conductivity in the FM state is lower than in the PM state, indicating magnetism's inhibitory effect on thermal transport in Nd-Ce-Fe-B magnet. This phenomenon can be attributed to the suppressed electron transport in the FM state, which effectively reduces the electronic contribution to κ. To validate our findings, we conduct practical heating experiments at the device level alongside multiscale simulations. This research would significantly contribute to the understanding of thermal transport in magnetic materials, laying the groundwork for the thermal design of innovative devices that incorporate magnetism.

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
CiteScore
4.10
自引率
9.10%
发文量
179
审稿时长
5 months
期刊介绍: International Journal of Thermophysics serves as an international medium for the publication of papers in thermophysics, assisting both generators and users of thermophysical properties data. This distinguished journal publishes both experimental and theoretical papers on thermophysical properties of matter in the liquid, gaseous, and solid states (including soft matter, biofluids, and nano- and bio-materials), on instrumentation and techniques leading to their measurement, and on computer studies of model and related systems. Studies in all ranges of temperature, pressure, wavelength, and other relevant variables are included.
×
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