Structure and magnetic properties of melt-spun Tb0.27Dy0.73Fex ribbons

被引：0
|
作者：
Liu, H. Y. [1 ]
Li, Y. X. [1 ]
Zhang, M. [1 ]
Meng, X. X. [1 ]
Qu, J. P. [1 ]
Chen, J. L. [2 ]
Wu, G. H. [2 ]
机构：
[1] Hebei Univ Technol, Sch Mat Sci & Engn, Tianjin 300130, Peoples R China
[2] Chinese Acad Sci, Inst Phys, State Key Lab Magnetism, Beijing 100080, Peoples R China
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2008年 / 320卷 / 13期
基金：
中国国家自然科学基金;
关键词：
Tb(0.27)Dy(0.73)Fe(x) alloy; melt-spun ribbons; melt-quenching; magnetostriction;
D O I：
10.1016/j.jmmm.2008.02.113
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The structure and magnetic properties of the melt-spun ribbons of Tb(0.27)Dy(0.73)Fe(x) alloy are investigated as a function of various wheel speeds during melt-quenching using a single-roll technique. It is found that Tb(0.27)Dy(0.73)Fe(x) alloy is difficult to be fabricated as amorphous state by using the melt-quenching method. X-ray diffractions show that all these ribbons for x 1.7-2.0 are the MgCu(2)-type phase at the wheel speed of 45ms(-1). For Tb(0.27)Dy(0.73)Fe(x) alloy, the high wheel speed is beneficial to eliminate the RFe(3) phase and form the perfect MgCu(2)-type phase. Compared with the bulk of Tb(0.27)Dy(0.73)Fe(1.95), these ribbons exhibit higher intrinsic coercivity value and their saturation magnetizations increase as well. The magnetostriction of Tb(0.27)Dy(0.73)Fe(1.95) composite with 4% epoxy resin is 640 x 10(-6) at 900 kA m(-1). (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：1871 / 1874
页数：4
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