Permanent magnets: Plugging the gap

被引：575

作者：

Coey, J. M. D. ^{[1
,2
]}

机构：

[1] Trinity Coll Dublin, Sch Phys, Dublin 2, Ireland

[2] Trinity Coll Dublin, CRANN, Dublin 2, Ireland

来源：

SCRIPTA MATERIALIA | 2012年 / 67卷 / 06期

基金：

爱尔兰科学基金会;

关键词：

Hard magnets; Coercivity; Rare-earth alloys; Oxides;

D O I：

10.1016/j.scriptamat.2012.04.036

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Bulk permanent magnets are indispensable components of numerous consumer and industrial products for energy conversion. The market splits roughly 2:1 between Nd-Fe-B and hard ferrite, whose costs are currently in a ratio of more than 25:1. The escalation of rare earth costs presents an opportunity for new magnets with an energy product of 100-200 kJ m(-3), intermediate between ferrite ( < 38 kJ m(-3)) and Nd-Fe-B ( > 200 kJ m(-3)), provided the costs of raw materials and manufacturing are kept low. (C) 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：524 / 529

页数：6

共 26 条

[1]

Bourzac K, 2011, TECHNOL REV, V114, P58

[2] Hard Magnetic Materials: A Perspective [J].

Coey, J. M. D. .

IEEE TRANSACTIONS ON MAGNETICS, 2011, 47 (12) :4671-4681

[3]

Coey J M. D., 2010, Magnetism and Magnetic Materials, P464, DOI DOI 10.1017/CBO9780511845000

[4] THE MAGNETIZATION OF ALPHA''FE16N2 [J].

COEY, JMD ;

ODONNELL, K ;

QINIAN, Q ;

TOUCHAIS, E ;

JACK, KH .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1994, 6 (04) :L23-L28

[5] PR-FE AND ND-FE-BASED MATERIALS - A NEW CLASS OF HIGH-PERFORMANCE PERMANENT-MAGNETS [J].

CROAT, JJ ;

HERBST, JF ;

LEE, RW ;

PINKERTON, FE .

JOURNAL OF APPLIED PHYSICS, 1984, 55 (06) :2078-2082

[6]

Goodenough J. B., 1963, Magnetism and the Chemical Bond

[7] Magnetic Materials and Devices for the 21st Century: Stronger, Lighter, and More Energy Efficient [J].

Gutfleisch, Oliver ;

Willard, Matthew A. ;

Bruck, Ekkes ;

Chen, Christina H. ;

Sankar, S. G. ;

Liu, J. Ping .

ADVANCED MATERIALS, 2011, 23 (07) :821-842

[8] High coercivity cobalt carbide nanoparticles processed via polyol reaction: a new permanent magnet material [J].

Harris, V. G. ;

Chen, Y. ;

Yang, A. ;

Yoon, S. ;

Chen, Z. ;

Geiler, A. L. ;

Gao, J. ;

Chinnasamy, C. N. ;

Lewis, L. H. ;

Vittoria, C. ;

Carpenter, E. E. ;

Carroll, K. J. ;

Goswami, R. ;

Willard, M. A. ;

Kurihara, L. ;

Gjoka, M. ;

Kalogirou, O. .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2010, 43 (16)

[9]

Hatch G.P., 2011, Critical rare earths: global supply and demand projections and the leading contenders for new sources of supply

[10] R2FE14B MATERIALS - INTRINSIC-PROPERTIES AND TECHNOLOGICAL ASPECTS [J].

HERBST, JF .

REVIEWS OF MODERN PHYSICS, 1991, 63 (04) :819-898

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