How Extrinsic Is the Coercivity in NdFeB Bonded Magnets?

被引：4

作者：

Perigo, E. A. ^{[1
,2
]}

Cruz, I. A. ^{[2
]}

Antunes, B. ^{[2
]}

Braga, A. P. V. ^{[2
,3
]}

Landgraf, F. J. G. ^{[2
,3
]}

机构：

[1] Univ Luxembourg, Lab Phys Adv Mat, L-1511 Luxembourg, Luxembourg

[2] Inst Technol Res, BR-05508901 Sao Paulo, Brazil

[3] Univ Sao Paulo, Polytech Sch, BR-05508010 Sao Paulo, Brazil

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2013年 / 49卷 / 09期

基金：

巴西圣保罗研究基金会;

关键词：

Coercivity; magnetic materials; NdFeB; pressing; FE-B MAGNETS; MECHANICAL-PROPERTIES; ND; MICROSTRUCTURE; BEHAVIOR;

D O I：

10.1109/TMAG.2013.2253788

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The influence of the densification step, performed by uniaxial pressing at room temperature, on the coercivity mu H-0(c) of NdFeB bonded magnets has been analyzed. The mass density does not play any role on mu H-0(c) of non-cured magnets prepared by the mentioned method. Due to the brittle and intergranular character of the Nd2Fe14B-based phase fracture, the nano-sized grains are not affected or the modification is negligible, which maintains mu H-0(c) unchanged. After curing, the intrinsic coercivity of the magnets is reduced as a function of the compaction pressure increase.

引用

页码：5043 / 5047

页数：5

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