Metal treatment – Process of modifying or maintaining internal physical... – Magnetic materials
Reexamination Certificate
2011-07-05
2011-07-05
Sheehan, John P (Department: 1736)
Metal treatment
Process of modifying or maintaining internal physical...
Magnetic materials
C148S101000, C148S105000
Reexamination Certificate
active
07972448
ABSTRACT:
Disclosed herein is a method for the production of an anisotropic magnetic powder or a magnet produced from said powder, wherein a hydrogenating and dehydrogenating method is applied to the starting material in order to produce the powder. An anisotropic oriented magnetic material, more particularly magnetic scrap metal, is advantageously used as starting material so that the complicated use of a molten mass with isotropic distribution of the c axes of the hard metal crystals is not required. The result is an anisotropic material having a fine grain structure and a crystallographic orientation matching a TMXB phase formed during hydrogenation.
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Buchanan Ingersoll & Rooney
Sheehan John P
Vacuumschmelze GmbH & Co. KG
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