Magnetic properties of amorphous Nd-Fe-Co-Al alloys

被引：10
|
作者：
Kumar, G [1 ]
Eckert, J [1 ]
Roth, S [1 ]
Löser, W [1 ]
Müller, KH [1 ]
Schultz, L [1 ]
机构：
[1] Inst Met Mat, D-01171 Dresden, Germany
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2004年 / 375卷
关键词：
amorphous materials; casting; magnetic measurements; domain wall pinning;
D O I：
10.1016/j.msea.2003.10.088
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Nd60FexCo30-xAl10 (0 less than or equal to x less than or equal to 30) alloys were prepared by copper mold casting. The magnetic properties were studied by VSM and SQUID magnetometers. These measurements show the presence of two different magnetic phases with ordering temperatures of 50 K and 496 K for the Fe-containing alloys. A step in the M-H hysteresis loops at temperatures below 50 K supports the presence of the two different magnetic phases. The temperature dependence of the coercivity exhibits a peak at about 50 K above which it follows a law that describes hard magnetic behaviour based on pinning site inhomogeneities interacting with domain walls. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码：1083 / 1086
页数：4
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