Method of preparing a magnetic material

Details Method of preparing a magnetic material Method of preparing a magnetic material

1986-10-17

1987-12-29

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 05AB, C22C 104

Patent

active

047158905

ABSTRACT:
A method of forming a magnetic material. The magnetic material is a solid mass of grains, and has magnetic parameters characterized by: (1) a maximum magnetic energy product, (BH).sub.max, greater than 15 megagaussoersteds; and (2) a remanence greater than 8 kilogauss. The magnetic material is prepared by a two step solidification, heat treatment process. The solidification process is carried out by: (a) forming a solution of reducible precursor compounds of the magnetic material; and (b) thereafter reducing the reducible, precursor compounds and forming a precipitate thereof. The precipitate has a morphology characterized as being one or more of (i) amorphous, (ii) microcrystalline, or (iii) polycrystalline. The grains within the precipitate have, at this stage of the process, an average grain characteristic dimension less than that of the heat treated magnetic material. In the second, or heat treating, stage of the process, the precipitated solid is heat treated to form a solid material comprised of grains meeting at grain boundaries. The grains and grain boundaries have the morphology of the magnetic material.

REFERENCES:
patent: 3342587 (1967-09-01), Goodrich

Affiliated with

Also associated with

Rating

Method of preparing a magnetic material does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of preparing a magnetic material, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of preparing a magnetic material will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-461403