Control of the Properties of Sm – Fe – Co – Cu – Zr Magnets by the Method of Mixtures of Powders

被引：0
|
作者：
D. Yu. Vasilenko
D. Yu. Bratushev
A. V. Shitov
A. G. Popov
D. A. Kolodkin
机构：
[1] Ural Electromechanical Plant,
[2] M. N. Mikheev Institute for Metals Physics of the Ural Branch of the Russian Academy of Sciences,undefined
[3] Institute of Natural Sciences and Mathematics of the Ural Federal University,undefined
来源：
Metal Science and Heat Treatment | 2021年 / 62卷
关键词：
Sm – Co – Fe – Cu – Zr alloys; mixtures of powders; sintered magnets; low-temperature annealing; magnetic hysteresis properties;
D O I：
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学科分类号：
摘要：
The effect of the chemical composition of the alloys on the magnetic properties of sintered Sm – Co – Fe – Cu – Zr magnets produced with mixing of alloy powders is studied. Elevation of (BH )max of Sm – Co – Fe – Cu – Zr magnets due to increase of the concentration of Fe to 20 wt.% requires observation of a strict proportion of the components and precision choice of the modes of heat treatment. Optimization of the chemical composition and use of step annealing with reduction of the temperature from 700 to 400°C has given sintered magnets with the following properties: Br = 11.7 – 11.9 kGs, HcB = 9 – 10 kOe, HcJ = 15 – 20 kOe, and (BH )max = 29 – 31 MGs · Oe.
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页码：560 / 565
页数：5
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