NANOCOMPOSITE R(2)FE(14)B/FE EXCHANGE-COUPLED MAGNETS

被引：127

作者：

WITHANAWASAM, L ^{[1
]}

MURPHY, AS ^{[1
]}

HADJIPANAYIS, GC ^{[1
]}

KRAUSE, RF ^{[1
]}

机构：

[1] MAGNET INT INC,BURNS HARBOR,IN 46304

来源：

JOURNAL OF APPLIED PHYSICS | 1994年 / 76卷 / 10期

关键词：

D O I：

10.1063/1.358028

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have studied the crystallization, crystal structure, microstructure and magnetic properties of R-Fe-B (R=Nd,Pr,Dy,Tb) based melt-spun ribbons consisting of a mixture of R2Fe14B and α-Fe phases. All the samples crystallize first to α-Fe and a metastable phase (Y 3Fe62B14 for R=Nd,Pr,Dy and TbCu7 for R=Tb) before they finally transform to 2:14:1 and α-Fe. The highest values of coercivity and reduced remanence, 4.5 and 0.63 kOe, respectively, were obtained in a Nd3.85Tb2(Fe-Nb-B)94.15 sample. These properties are the result of a fine grain microstructure consisting of a mixture of α-Fe and 2:14:1 having an average grain size of 30 nm.

引用

页码：7065 / 7067

页数：3

共 9 条

[1] CALCULATION OF AVRAMI PARAMETERS FOR HETEROGENEOUS SOLID-STATE REACTIONS USING A MODIFICATION OF KISSINGER METHOD [J].