Magnetic and microstructural properties of (Nd,Pr)-(Tb,Dy,Gd)-(Fe,Co,Al,Cu)-B type magnets

被引：6

作者：

Arinicheva, O. A. ^{[1
]}

Lileev, A. S. ^{[1
]}

Reissner, M. ^{[2
]}

Lukin, A. A. ^{[3
]}

Starikova, A. S. ^{[1
]}

机构：

[1] Natl Univ Sci & Technol MISIS, Moscow 119049, Russia

[2] Vienna Univ Technol, A-1040 Vienna, Austria

[3] Ltd Res & Prod Complex Magnets & Magnet Syst, Moscow 127238, Russia

来源：

HYPERFINE INTERACTIONS | 2013年 / 219卷 / 1-3期

关键词：

NdFeB; Magnetization; Fe-57; Mossbauer; Heat treatment; Rare earth magnets; Permanent magnets;

D O I：

10.1007/s10751-012-0738-9

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

(Nd,Pr)-(Tb,Dy,Gd)-(Fe,Co,Al,Cu)-B magnets were heat treated in two different ways and investigated in the temperature range 4.2 to 400 K. After optimal heat treatment intrinsic coercive field (i) H (c) = 1640 and 5040 kA/m for room temperature and 10 K was obtained and the temperature coefficient of remanence alpha = -0.01 for temperature range 80 to 375 K was found. On basis of magnetic measurements and Fe-57 Mossbauer spectroscopy, the possible reasons for the increase of (i) H (c) during multi-step heat treatment are discussed.

引用

页码：89 / 93

页数：5

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