A new Sm-Co-type hard magnetic alloy with an amorphous based nanocrystalline microstructure

被引：6
|
作者：
Sun, Ji-Bing [1 ]
Bu, Shao-Jing [1 ]
Cui, Chun-Xiang [1 ]
Ding, He-Wei [1 ]
He, Chen-Hui [1 ]
Zhang, Li [1 ]
Han, Xiao-Wei [1 ]
机构：
[1] Hebei Univ Technol, Key Lab New Type Funct Mat Hebei Prov, Tianjin 300130, Peoples R China
来源：
INTERMETALLICS | 2013年 / 35卷
基金：
中国国家自然科学基金;
关键词：
Rare-earth intermetallics; Glasses; metallic; magnetic properties; Rapid solidification processing; Microstructure; Electron microscopy; GLASS-FORMING ABILITY; THERMAL-STABILITY; RARE-EARTH; FE; RE; MODEL; TM;
D O I：
10.1016/j.intermet.2012.12.002
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Sm-Co-Al amorphous alloys with high Sm content have very low coercivity at room temperature (RT). In this paper, Sm11.6Co60.7Fe15.7Zr7Cu1B4 alloys with low level of Sm and mixed addition of several elements were prepared via arc melting, copper mold casting and rapid quenching technique, respectively. The ribbons melt-spun at 40 m/s present a novel microstructure with Sm(Co,M)(7) and other minor nanocrystalline phases embedded in the amorphous matrix, which makes the average coercivity reach up to 18.2 +/- 1.6 kOe at RT. The temperature dependence of magnetization curves of the ribbons suggest a high content of amorphous phase which is stable and behaves ferromagnetism below 500 degrees C. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：82 / 89
页数：8
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