Process for preparing polycrystalline ferrite materials and comp

Details Process for preparing polycrystalline ferrite materials and comp Process for preparing polycrystalline ferrite materials and comp

1993-06-21

1994-04-12

Cooper, Jack

Compositions

Magnetic

Iron-oxygen compound containing

204164, 264 25, 264 27, 264 65, 423594, C04B 3538

Patent

active

053023064

ABSTRACT:
A ferrite composed of a polycrystalline ferrite which is obtained by sintering a ferrite starting powder by a discharge plasma technique is described. The ferrite starting powder is appropriately a coprecipitated ferrite powder. Prior to the sintering, the coprecipitated powder is preferably thermally treated or calcined at temperatures of not lower than 900.degree. C. A composite ferrite is also described, which is composed of the polycrystalline ferrite and a single crystal ferrite bonded together obtained by contacting the single crystal ferrite with the coprecipitated ferrite powder or embedding the single crystal ferrite in the powder, under which the polycrystalline ferrite powder is sintered by the discharge plasma sintering thereby bonding both ferrites together.

REFERENCES:
patent: 3542685 (1970-11-01), Iwase et al.
patent: 3822210 (1974-07-01), Iwase et al.
patent: 3836472 (1974-09-01), Soejima et al.
patent: 3843541 (1974-10-01), Chiba et al.
patent: 4372865 (1983-02-01), Yu et al.
patent: 4559312 (1983-12-01), Kim et al.
patent: 4680130 (1987-07-01), Hibst et al.
patent: 4719078 (1988-01-01), Miyashita et al.

Affiliated with

Also associated with

Rating

Process for preparing polycrystalline ferrite materials and comp does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for preparing polycrystalline ferrite materials and comp, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparing polycrystalline ferrite materials and comp will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2096591