General Electric Company

Israel S Jacobs

Fred E Luborsky

Richard O McCary

Joseph J Becker

Evangelos Trifon Laskaris

Mark Gilbert Benz

Gerald Burt Kliman

John Frederick Ackerman

Andrew Jay Skoog

Jane Ann Murphy

Bulent Aksel

Kathleen Melanie Amm

Matthew Bernard Buczek

Juliana Chiang Shei

Harold Jay Patchen

Liang Li

Paul Shadworth Thompson

Daniel G Backman

Charles S Korman

John Andrew Mallick

Waseem A Roshen

Leonard N Grossman

Joseph A Lahut

Brian Keith Flandermeyer

A method of making a permanent magnet body is provided. The method includes providing a first precursor body comprising a plurality of blocks and magnetizing the first precursor body to form a first permanent magnet body. A recoil magnetization pulse may be applied to the permanent magnet body after the magnetization. The precursor body may be heated during magnetization. A power supply containing a battery may be used to energize a pulsed magnet used to magnetize the precursor body.

Method and apparatus for magnetizing a permanent magnet

A shim adapted for altering a magnetic field of a magnet includes a first material which exhibits an increase in spontaneous magnetization with an increase in temperature for a predetermined temperature range.

Magnetic materials, passive shims and magnetic resonance imaging systems

Non-spherical particles including a major dimension, for example flakes of material, are positioned with the major dimension oriented generally along an article surface in respect to which the particle is disposed. The particles, disposed in a fluid medium, the viscosity of which can be increased to secure the particles in position, are positioned using a force on the particles. The force includes torque force from a magnetic field, force from flow of the fluid medium, the force of gravity, and the force of surface tension alone or in combination with the force of gravity.

Article including particles oriented generally along an article surface and method for making

A coating is prepared by providing a plurality of metallic flake particles, depositing a surface-protective applied layer on the particle surfaces to form protected particles, and mixing the protected particles with a binder precursor to form a coating mixture. The coating mixture is applied to a substrate. The surface-protective applied layer is preferably silica, which is deposited by a sol-gel process from a tetraethyl orthosilicate solution.

Coating system containing surface-protected metallic flake particles, and its preparation

A high frequency, high density, low profile magnetic circuit component includes a magnetic core having a first magnetic layer and a second magnetic layer with a conductive layer deposited therebetween, each magnetic layer being a multilayer structure comprised of alternating magnetic and insulating films. The magnetic films are anisotropic and are driven along their magnetic hard axis in order to reduce excess eddy current losses. To reduce fringing field eddy current losses, a distributed air gap is structured in the magnetic layers. The magnetic core has a distributed air gap formed therein in order to minimize eddy current losses in the conductive layer. The conductive layer has a conductive material patterned on a insulating substrate and is situated between the first and second magnetic layers such that the conductive material extends beyond the peripheries of the first and second magnetic layers, thereby maximizing the amount of magnetic material that is driven in the hard axis.

High frequency, high density, low profile, magnetic circuit components

Amorphous magnetic metal alloys are processed by annealing at temperatures sufficient to achieve stress relief and cooling in directed magnetic fields or in zero magnetic fields. The ac and dc properties of magnetic cores produced in accordance with the processes of the invention may be tailored to match those of a wide range of magnetic alloys. Alloys processed in accordance with the invention provide improved performance in inductors, transformers, magnetometers, and electrodeless lamps.

Treatment of amorphous magnetic alloys to produce a wide range of

A method and apparatus for magnetically determining the Gd.sub.2 O.sub.3 content in UO.sub.2 fuel pellets is described. The alternating current susceptibility of fuel pellets within a zircalloy cladding is measured using an ac inductive technique. Ferromagnetic impurity moments are saturated with a direct current magnetic field. Susceptibility increases with increasing Gd.sub.2 O.sub.3 content when the ferromagnetic component is saturated in fields above 6 kOe.

Method and apparatus for magnetically determining the Gd.sub.2 O.sub.3

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Schenectady, NY, United States of America

Israel S Jacobs