Anisotropic permanent magnets
AssigneeStani vyzkumny ustav materialu
InventorsVaclav Landa, Zdenek Blazek
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Abstract
A permanent magnet made of a rigid material, said magnet having, within its entire body or in a part thereof, an anisotropic magnetic structure wherein the axes of easy magnetization in the elementary magnet regions have a convergent orientation in the environment of at least one of magnet poles. The value of magnetic induction to be delivered by the magnet of the invention to an air gap, or other part of magnetic circuit is raised relative to conventional anisotropic permanent magnets made of the same materials.
Claims18
A rigid permanent magnet made of metallic or ceramic material without a plastic matrix, said magnet having within at least a part thereof an anisotropic magnetic structure, wherein the direction of the axes of easy magnetization have a convergent orientation, said orientation concentrating the magnetic flux in the surface region of the pole of the magnet into a smaller cross-section than that of the magnet, and the orientation lines extending from said pole point toward the pole of opposite polarity the area or the center of which are disposed at the opposite magnet side.
Dependencies are inferred from the claim text.