Permanent magnent and method for producing same
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United States of America Patent
Stats
-
Aug 23, 1988
Grant Date -
N/A
app pub date -
Dec 27, 1985
filing date -
Dec 31, 1984
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In the rare earth-iron-boron permanent magnet, Ce and La decrease the magnetic properties when used alone but synergistically enhance iHc when used in combination. The composition provided by the present invention is generally expressed by [(Ce.sub.x La.sub.1-x).sub.y R.sub.1-y ].sub.z [(Fe.sub.1-u-w Co.sub.w M.sub.u).sub.1-v B.sub.v ].sub.1-z with a proviso of 0.4.ltoreq.x.ltoreq.0.9, 0.2
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