Effects of Ti and C additions on the nanostructure and magnetic properties of (Nd, Pr)- (Fe, Co, Ga)-B melt-spun nanocomposite ribbons

被引：5

作者：

Esfahani, M. ^{[2
]}

Gholamipour, R. ^{[1
]}

Mirdamadi, S. H. ^{[2
]}

Abdolhoseini, A. ^{[2
]}

Ohkubo, T. ^{[3
]}

机构：

[1] IROST, Adv Mat & Renewal Energy Dept, Tehran, Iran

[2] Iran Univ Sci & Technol, Dept Met & Mat Engn, Tehran, Iran

[3] Natl Inst Mat Sci, Tsukuba, Ibaraki, Japan

来源：

PHYSICA B-CONDENSED MATTER | 2010年 / 405卷 / 18期

关键词：

Nanocomposite; Nd-Fe-B; Melt-spun ribbon; Magnetic properties; PERMANENT-MAGNETS; ALLOYS; FE; MICROSTRUCTURE; PRECIPITATION; NB;

D O I：

10.1016/j.physb.2010.06.013

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

In this work the effects of Ti and C additions on the structure and magnetic properties of Nd-Fe-B nanocomposite permanent magnetic alloys with nominal composition of Nd9.4Pr0.6Febal.Co6B6Ga0.5TixCx (x=0, 1.5, 4.5) have been investigated. As-spun ribbons were examined by using X-ray diffractometer (XRD) and differential scanning calorimetry (DSC). The results show that Ti and C additions enhance the glass forming ability and increase crystallization temperature. XRD results of annealed ribbons indicate that Ti and C compose TiC. TEM observation reveals that the formation of TiC refines the microstructure of annealed ribbons consisting of 1.5 at% Ti and 1.5 at% C additions, which leads to enhancement of magnetic properties. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：3838 / 3841

页数：4

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