Bbc Brown, Boveri & Company, Limited

Hartmut Nagel

Anton Menth

Ulrich Spinner

Roger Perkins

Hans-Peter Klein

Sevi Gaiffi

Antony James Perry

Permanent-magnet alloys having the general formula

Permanent-magnet alloy

A rare earth permanent magnet comprising an alloy consisting essentially of:

Permanent magnet and method of making it

A permanent-magnet alloy having the formula

A copper-hardened permanent-magnet alloy consisting of cobalt, copper and at least one of the rare-earth metals (RE) with atomic number 57 - 71, is characterized by a coarse-grained matrix of the composition Re (Co.sub.1-y Cu.sub.y).sub.6+X, wherein 0.ltoreq.X.ltoreq.1 and 0.15&lt;y&lt;0.35.

Copper-hardened permanent-magnet alloy

A permanent magnetic material has the composition (MM.sub.1-x ND.sub.x) .sub.1-y Sm.sub.y Co.sub.5, in which 0.25 &lt; x &lt; 1,0 .ltoreq. y .ltoreq. 0.25, and MM is a misch metal of the composition Ce.sub..alpha. La.sub..beta. Pr.sub..gamma. wherein the parameters .alpha., .beta., .gamma., satisfy the conditions

Permanent magnetic material which contains rare earth metals, especially

A permanent magnetic material, predominantly containing cerium misch-metal (CeMM) and cobalt, characterized by the composition:

Cerium misch-metal/cobalt magnets

A permanent magnet consists of a rare earth element (RE) or a mixture thereof, cobalt, iron and a transition metal (TM) selected from the group consisting of chromium, manganese, titanium, tungsten, molybdenum, and mixtures thereof; wherein for each two moles of the rare earth elements there are 14-19 moles of all other elements.

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Wettingen, Switzerland

Hartmut Nagel