IMPROVED CORROSION AND TEMPERATURE BEHAVIOR OF MODIFIED ND-FE-B MAGNETS

被引：61

作者：

TENAUD, P ^{[1
]}

VIAL, F ^{[1
]}

SAGAWA, M ^{[1
]}

机构：

[1] INTERMETALLICS CO LTD,MATSUMURO,KYOTO 615,JAPAN

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1990年 / 26卷 / 05期

关键词：

D O I：

10.1109/20.104574

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The characteristics of the high energy product NdFeB magnets obtained by powder metallurgy route have been improved by appropriate vanadium additions. - Specific combinations of V and Co lead to intrinsic coercive force of about 1350 kA/m (17koe) in Dy free magnets, without any large decrease of remanence. - If morever 1.5 at% Dy is added, load line down to -B/μH=0.5 can be achieved at 180°C without irreversible losses. - Corrosion resistance is improved by blocking the selective oxidation of the Nd rich phase. As a consequence organic coated magnets are able to stand 15 days at 115°C-1.75 bars in a H2O saturated atmosphere without any degradation. This set of new properties will enlarge the applications fields of NdFeB permanent magnets. © 1990 IEEE

引用

页码：1930 / 1932

页数：3

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[6]

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[7]

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