Effects of annealing process on magnetic properties and structures of Nd-Pr-Ce-Fe-B melt-spun powders

被引：18
作者：
Pei, Kun [1 ,2 ]
Lin, Min [1 ]
Yan, Aru [1 ]
Zhang, Xing [2 ]
机构：
[1] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Key Lab Magnet Mat & Devices, Ningbo 315201, Zhejiang, Peoples R China
[2] North Univ China, Sch Mat Sci & Engn, Taiyuan 030051, Peoples R China
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2016年 / 406卷
基金：
中国国家自然科学基金;
关键词：
Nd-Pr-Ce-Fe-B; Annealing process; Magnetic properties; Structure; Cooling rate; CRYSTALLIZATION BEHAVIOR;
D O I：
10.1016/j.jmmm.2016.01.028
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effects of annealing process on magnetic properties and structures of Nd-Pr-Ce-Fe-B melt-spun powders have been investigated. The magnetic properties improve a lot when the annealing temperature is 590-650 degrees C and the annealing time exceeds 1 min. The magnetic properties is stable when the annealing time is 590-650 degrees C. The powders contains obvious grains when the annealing time is only 1 min, while the grains grow up obviously, leading to the decrease of B-r and (BH)(max), when the annealing time is more than 9 min. The H-cj changes little for different annealing time. The cooling rate also affects the magnetic properties of powders with different Ce-content. Faster cooling rate is favorable to improve magnetic properties with low Ce-content powders, while high Ce-content powders need slower cooling rate. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：239 / 243
页数：5
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