Method for the treatment of metal objects

Details Method for the treatment of metal objects Method for the treatment of metal objects

1988-11-29

1990-10-30

Sheehan, John P.

Chemistry: electrical and wave energy

Processes and products

Vacuum arc discharge coating

148101, C23C 1400

Patent

active

049666681

ABSTRACT:
A sintered permanent magnet having the composition RE.sub.2 T.sub.14 B, where RE is a rare earth metal, T is a transition metal and B is boron, is treated by ion plating the magnet at an elevated temperature in the presence of a gas phase.

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