Effect of Low-Temperature Annealings on Coercitive Force of Permanent Magnets from Alloys, (Nd,Pr,Sm) Co5.

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作者：
Merkulova, G.Ya.
机构：
来源：
Izvestia Akademii nauk SSSR. Metally | 1979年 / 05期
关键词：
COBALT AND ALLOYS - NEODYMIUM AND ALLOYS - PRASEODYMIUM AND ALLOYS - SAMARIUM AND ALLOYS;
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摘要：
An investigation of the effect of low-temperature annealings at 150-600 degree C on the coercitive force of powder metallurgy magnets of the type, Nd//0//. //5Pr//0//. //2//5Sm//0//. //2//5Co//5 (alloy 1) and Nd//0//. //5Sm//0//. //5Co//5 (alloy 2), is carried out. It is found that prolonged heat treatment of these magnets leads to structural and phase transformations in the main matrix which have a strong effect on the magnitude of the coercitive force of the magnets. Given a certain combination of temperature and of the time of low-temperature annealings, it is possible to attain a significant increase of the coercitive force by 30-40%.
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页码：173 / 175
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