Prospects for nanoparticle-based permanent magnets

被引：110

作者：

Balamurugan, B. ^{[1
,2
]}

Sellmyer, D. J. ^{[1
,2
]}

Hadjipanayis, G. C. ^{[3
]}

Skomski, R. ^{[1
,2
]}

机构：

[1] Univ Nebraska, Dept Phys & Astron, Lincoln, NE 68588 USA

[2] Univ Nebraska, Nebraska Ctr Mat & Nanosci, Lincoln, NE 68588 USA

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

来源：

SCRIPTA MATERIALIA | 2012年 / 67卷 / 06期

基金：

美国国家科学基金会;

关键词：

Nanoparticle building blocks; Exchange-coupled nanocomposites; Permanent-magnets; Synthesis; Processing; L1(0) FEPT NANOPARTICLES; MAGNETIZATION; CLUSTERS; POWDERS; FIELD; SIZE;

D O I：

10.1016/j.scriptamat.2012.03.034

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Magnetic nanoparticles smaller than similar to 15 nm in diameter and with high magnetocrystalline anisotropies K-1 >= 1 MJ m(-3) can be used as building blocks for next-generation permanent magnets. Advances in processing steps are discussed, such as self-assembly, alignment of the easy axes and appropriate nanostructuring that will enable the fabrication of densely packed nanopartide assemblies with improved permanent-magnet properties. This study also proposes an idealized nanocomposite structure for nanoparticle-based future permanent magnets with enhanced energy products. (C) 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：542 / 547

页数：6

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