Production of Permanent Magnets for Magnetically Hard Alloys Using Rare-Earth Metals

被引：6

作者：

Shumkin, S. S. ^{[1
]}

Prokof'ev, P. A. ^{[1
]}

Semenov, M. Yu ^{[2
]}

机构：

[1] AO Spetsmagnit, Moscow, Russia

[2] FGBOU VO IP Bardin TsNIIchermet, Moscow, Russia

来源：

METALLURGIST | 2019年 / 63卷 / 5-6期

关键词：

permanent magnets; rare-earth metals; samarium-cobalt system; neodymium-iron-boron system; powder metallurgy; secondary resources; SINTERED MAGNETS; COERCIVITY;

D O I：

10.1007/s11015-019-00846-3

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

A requirement for improving powder metallurgy technology of alloys for permanent magnets containing rare-earth metals based on the use of secondary resources and a replacement of rare-earth metals and fine control of the semifinished products chemical composition is demonstrated. These approaches are realized successfully in the preparation of Nd-Fe-B system magnetically hard materials by a binary mixture method using rare earth metal hydrides and their alloys. Analysis of the magnetic properties of Sm-Co-Cu-Fe-Zr system permanent magnets according to the results of the primary ingot chemical composition control minimizes production costs.

引用

页码：462 / 468

页数：7

共 17 条

[1] High-field magnetization and magnetic structure of Tb3Co [J].