High-coercivity sintered Nd14.5Dy1.5Fe68Co5Al1.5Cr2B7.5 permanent magnet

被引：1

作者：

Szymura, S

Wyslocki, JJ

Bala, H

Rabinovich, YM

机构：

[1] Czestochowa Tech Univ, Inst Phys, PL-42200 Czestochowa, Poland

[2] Czestochowa Tech Univ, Dept Chem, PL-42200 Czestochowa, Poland

[3] Metallotherm Co Ltd, Moscow 105094, Russia

来源：

MATERIALS CHEMISTRY AND PHYSICS | 1998年 / 52卷 / 02期

关键词：

Nd-Fe-B-type magnets; microstructure; magnetic properties; corrosion resistance;

D O I：

10.1016/S0254-0584(98)80015-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Effect of 1.5 at.% Al and 2.0 at.% Cr additions on microstructure, magnetic properties, thermal stability and corrosion resistance of (Nd,Dy)-(Fe,Co)-B sintered magnet have been studied. It is shown that simultaneous substitution of these elements for Fe in (Nd,Dy)-(Fe,Co)-B magnet causes significant improvement in coercivity and thermal stability; maximum operating temperature up to 473 K may be possible. The corrosion resistance in acid solution and atmospheric environment is also significantly improved by blocking the selective oxidation of the Nd-rich phase owing to the formation of (Nd,Dy)-(Co,Al,Fe)and (Nd,Dy))-(Fe,Cr,Co) phases. (C) 1998 Elsevier Science S.A.

引用

页码：147 / 151

页数：5

共 48 条

[1] Distribution of Dy in high-coercivity (Nd,Dy)-Fe-B sintered magnet
Li, W. F.
Sepehri-Amin, H.
Ohkubo, T.
Hase, N.
Hono, K.
ACTA MATERIALIA, 2011, 59 (08) : 3061 - 3069
[2] Coercivity enhancement in Nd-Fe-B sintered permanent magnet by Dy nanoparticles doping
Liu, W. Q.
Sun, H.
Yi, X. F.
Liu, X. C.
Zhang, D. T.
Yue, M.
Zhang, J. X.
JOURNAL OF ALLOYS AND COMPOUNDS, 2010, 501 (01) : 67 - 69
[3] Relation of remanence and coercivity of Nd,(Dy)-Fe,(Co)-B sintered permanent magnets to crystallite orientation
Kim, A.S.
Camp, F.E.
Stadelmaier, H.H.
1600, American Inst of Physics, Woodbury, NY, USA (76):
[4] High-coercivity nanocomposite permanent magnet based on Nd-Fe-B-Ti-C with Cr additino for high-temperature applications
Ishii, Rintaro
Miyoshi, Toshio
Kanekiyo, Hirokazu
Hirosawa, Satoshi
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2007, 312 (02) : 410 - 413
[5] Microstructure of a Dy-free Nd-Fe-B sintered magnet with 2 T coercivity
Xu, X. D.
Sasaki, T. T.
Li, J. N.
Dong, Z. J.
Sepehri-Amin, H.
Kim, T. H.
Ohkubo, T.
Schrefl, T.
Hono, K.
ACTA MATERIALIA, 2018, 156 : 146 - 157
[6] RELATION OF REMANENCE AND COERCIVITY OF ND,(DY)-FE,(CO)-B SINTERED PERMANENT-MAGNETS TO CRYSTALLITE ORIENTATION
KIM, AS
CAMP, FE
STADELMAIER, HH
JOURNAL OF APPLIED PHYSICS, 1994, 76 (10) : 6265 - 6267
[7] EFFECTS OF ERBIUM SUBSTITUTION ON PERMANENT-MAGNET PROPERTIES OF SINTERED (ND,DY)-(FE,CO)-B
XIAO, Y
STRNAT, KJ
MILDRUM, HF
RAY, AE
IEEE TRANSACTIONS ON MAGNETICS, 1987, 23 (05) : 2293 - 2295
[8] High-coercivity Sm2(Fe,Al,Mo)17C1.5 ribbons with addition of Mo
Tang, W
Jin, ZQ
Yin, JH
Zhang, JR
Zhang, SY
Du, YW
JOURNAL OF APPLIED PHYSICS, 1998, 83 (10) : 5585 - 5587
[9] MICROSTRUCTURE AND COERCIVITY IN (ND,DY)-(FE,CO)-B BASED SINTERED PERMANENT-MAGNETS WITH MINOR NB AND GA ADDITIONS
ZHOU, GF
SUN, XK
CHUANG, YC
GAO, L
YU, Z
XIAO, CL
LIU, W
JOURNAL DE PHYSIQUE, 1988, 49 (C-8): : 573 - 574
[10] MICROSTRUCTURE AND COERCIVITY OF (ND, DY)-(FE, CO)-B SINTERED PERMANENT-MAGNETS CONTAINING A SMALL ADDITION OF NIOBIUM AND SILICON
SUN, XK
ZHOU, GF
CHUANG, YC
GROSSINGER, R
KIRCHMAYR, HR
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1991, 96 (1-3) : 197 - 205

← 1 2 3 4 5 →