Metal treatment – Process of modifying or maintaining internal physical... – Magnetic materials
Patent
1987-03-23
1989-07-04
Roy, Upendra
Metal treatment
Process of modifying or maintaining internal physical...
Magnetic materials
419 12, 419 23, H01F 106
Patent
active
048447510
ABSTRACT:
A permanent-magnet material of a metal/metal/metalloid system is produced in which at least one starting component of the metals in powder form is mixed together with a component in powder form of elemental boron, or a boron compound or alloy, is optionally compacted, and finally subjected to an annealing treatment for forming the permanent-magnet material. In order that a powder of this material system is produced with an extremely fine microstructure, the powder mixture of the starting components is first subjected to a milling process in the manner of mechanical alloying whereby a mixture powder of the at least one metallic starting component with embedded or adsorbed fine particles of the boron component is formed.
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Roy Upendra
Siemens Aktiengesellschaft
Wyszomierski George
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