Hard-magnetic melt-spun R-Fe-B alloys on the base of light rare-earth metals (R=La, Nd)

被引：1

作者：

Bovda, O. M. ^{[1
]}

Bovda, V. O. ^{[1
]}

Ortisehertko, L., V ^{[1
]}

Tortika, O. S. ^{[1
]}

Kostin, O. O. ^{[1
]}

Ravlik, A. G. ^{[2
]}

Avramenko, B. A. ^{[2
]}

Aseev, A. S. ^{[2
]}

Baumer, V. M. ^{[3
]}

机构：

[1] Kharkiv Inst Phys & Technol, Natl Sci Ctr, 1 Akad Str, UA-61108 Kharkov, Ukraine

[2] NTU KhPI, UA-61002 Kharkov, Ukraine

[3] SSI ISC, UA-61178 Kharkov, Ukraine

来源：

FUNCTIONAL MATERIALS | 2013年 / 20卷 / 02期

关键词：

Average grain size - Bonded magnet - Light rare earth metals - Melt-spun - Melt-spun ribbons - Nd-Fe-B - Rich phase;

D O I：

10.15407/fm20.02.203

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Effects of La addition on microstructure and magnetic properties of LaxNd33-xFe65.9B1.1 (wt. %) melt-spun ribbons and isotropic bonded magnets were systematically studied. X-ray diffraction and DSC data revealed that addition of La led to the formation of highly refined and inhomogeneous La-rich phase. It was shown that the average grain size and volume fraction of the main magnetic (La,Nd)(2)Fe14B phase depend on La concentration. For better LaxNd33-xFe65.9B1.1 x = 2.5 and 5 wt. % bonded samples, the room-temperature magnetic properties of H-ci = 1343 kA/m and 1300 kA/m, and B-r = 0.61 T and 0.614 T were obtained. Magnetic flux aging loss for alloys with appropriate La content (x = 5-10 wt. %) did not exceed 5 % in the range of 100-125 degrees C, which is typical for conventional ternary Nd-Fe-B melt-spun magnets.

引用

页码：203 / 207

页数：5

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