Preparation of anisotropic hexagonal barium ferrite sintered mag

Details Preparation of anisotropic hexagonal barium ferrite sintered mag Preparation of anisotropic hexagonal barium ferrite sintered mag

1996-06-25

1998-09-22

Bonner, Melissa

Compositions

Magnetic

Iron-oxygen compound containing

252 6262, 252 6259, H01F 110

Patent

active

058110240

ABSTRACT:
An anisotropic hexagonal barium ferrite sintered magnet is prepared by molding a powder barium ferrite raw material in a magnetic field into a compact and sintering the compact; or by molding a powder barium ferrite raw material in a magnetic field into a compact, disintegrating the compact into particles, compacting the particles in a magnetic field into a second compact, and sintering the second compact. In either case, the raw material contains calcined hexagonal barium ferrite, a silicon component, and a barium component. The resulting anisotropic hexagonal barium ferrite sintered magnet has improved sintered density and coercivity while the method minimizes deformation during sintering which is otherwise caused by the difference between the shrinkage factors in axis c and a directions, and simplifies or omits post-treatment like polishing.

Affiliated with

Also associated with

Rating

Preparation of anisotropic hexagonal barium ferrite sintered mag does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Preparation of anisotropic hexagonal barium ferrite sintered mag, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Preparation of anisotropic hexagonal barium ferrite sintered mag will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1619748