Effect of Co substitution on the crystallization behavior and magnetic properties of melt-spun (Pr,Tb)2(Fe,Nb,Zr)14B/α-Fe nanocomposites

被引：7

作者：

Wang, H ^{[1
]}

Zhang, Y ^{[1
]}

Jin, ZQ ^{[1
]}

Hadjipanayis, GC ^{[1
]}

机构：

[1] Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA

来源：

JOURNAL OF APPLIED PHYSICS | 2003年 / 93卷 / 10期

关键词：

D O I：

10.1063/1.1558273

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The influence of Co substitution on the crystallization behavior and magnetic properties of (Pr,Tb)(2)(Fe,Nb,Zr)(14)B/alpha-Fe nanocomposites was investigated in melt-spun Pr7Tb1Fe87Nb0.5Zr0.5B4 and Pr7Tb1Fe57Co30Nb0.5Zr0.5B4 samples. Crystallographic textures were observed for all constituent phases in both sample S spun at wheel speeds less than 15 m/s. Both alloys show a fully amorphous structure when spun at a speed faster than 40 m/s which crystallizes into the TbCu7 structure before it finally transforms into the 2:14:1 phase. The Curie temperature of alpha-Fe and Pr2Fe14B phase increases greatly with the substitution of 30% Co for Fe. However, both the coercivity and energy product decrease. Optimum magnetic properties are found in the Pr7Tb1Fe87Nb0.5Zr0.5B4 sample with coercivity H-c=6.84 kOe and (BH)(max)=11.8 MG Oe. (C) 2003 American Institute of Physics.

引用

页码：7978 / 7980

页数：3

共 7 条

[1] NOVEL PERMANENT MAGNETIC-MATERIALS MADE BY RAPID QUENCHING [J].

COEHOORN, R ;

DEMOOIJ, DB ;

DUCHATEAU, JPWB ;

BUSCHOW, KHJ .

JOURNAL DE PHYSIQUE, 1988, 49 (C-8) :669-670

[2] Crystallization behavior and magnetic properties of melt-spun (Pr,Tb)2(Fe,Nb)14B/α-Fe nanocomposites [J].

Jin, ZQ ;

Okumura, H ;

Wang, HL ;

Muñoz, JS ;

Papaefthymiou, V ;

Hadjipanayis, GC .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2002, 242 :1307-1309

[3] NEW NANOCRYSTALLINE HIGH-REMANENCE ND-FE-B ALLOYS BY RAPID SOLIDIFICATION [J].

MANAF, A ;

BUCKLEY, RA ;

DAVIES, HA .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1993, 128 (03) :302-306

[4] Partitioning of Ga and Co atoms in a Fe3B/Nd2Fe14B nanocomposite magnet [J].

Ping, DH ;

Hono, K ;

Hirosawa, S .

JOURNAL OF APPLIED PHYSICS, 1998, 83 (12) :7769-7775

[5] Effects of quenching rate on the phase transformation and magnetic properties of melt-spun Pr8Fe86Bg6 ribbons during annealing [J].

Wang, ZC ;

Zhou, SZ ;

Qiao, Y ;

Zhang, MC ;

Wang, R .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2000, 218 (01) :72-80

[6]

WITHAWANASAM L, 1994, J APPL PHYS, V75

[7] Partitioning behavior and the effect of Co on the Curie temperature of nanocomposite PrFeCoB hard magnetic alloys [J].

Zhang, Y ;

Warren, PJ ;

Cerezo, A ;

Harland, CL ;

Davies, HA .

APPLIED PHYSICS LETTERS, 2001, 79 (06) :797-799

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