微波退火处理对（钕、镨、铈）铁硼/α-铁纳米复合磁体结晶及磁性能的研究

Investigation on Crystallization and Magnetic Properties of (Nd, Pr, Ce)FeB/α-Fe Nanocomposite Magnets by Microwave Annealing Treatment.

作者信息

Wang Zhanyong, Shangguan Changping, Wang Zemin, Wang Tianpeng, Wang Lianbo, Liu Min, Sui Yanli

机构信息

Department of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai 201418, China.

Department Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China.

出版信息

Materials (Basel). 2021 May 22;14(11):2739. doi: 10.3390/ma14112739.

DOI:10.3390/ma14112739

PMID:34067362

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8196883/

Abstract

In the present work, the structures and magnetic properties of (Nd, Pr, Ce) FeB/α-Fe nanocomposite magnets were thoroughly investigated. The microwave annealing was applied to achieve a uniform heating effect and uniform grains. Microwave annealing is more favorable to obtain α-Fe phase than conventional annealing, which leads to the enhanced coercivity of hysteresis loops. The coercivity of nanocomposite magnets was 245 kA/m after annealing at 2000 W for 10 min.

摘要

在本工作中，对（钕、镨、铈）铁硼/α-铁纳米复合磁体的结构和磁性能进行了深入研究。采用微波退火以实现均匀的加热效果和均匀的晶粒。与传统退火相比，微波退火更有利于获得α-铁相，这导致磁滞回线的矫顽力增强。在2000瓦功率下退火10分钟后，纳米复合磁体的矫顽力为245千安/米。