Magnetic material

Details Magnetic material Magnetic material

2007-03-27

2007-03-27

Wyszomierski, George (Department: 1742)

Specialized metallurgical processes, compositions for use therei

Processes

Producing or purifying free metal powder or producing or...

C148S101000, C164S122000

Reexamination Certificate

active

10374830

ABSTRACT:
Magnetic materials having a coercivity not less than about 1000 Oersted are prepared in a single step procedure. A molten mixture of a desired composition having a relatively high boron content is cooled at a rate slower than about 105degrees Celsius per second. Preferably, the molten mixture is cooled by depositing it on a chilled surface such that it forms a layer between about 120 and about 300, and preferably between about 120 and about 150, microns thick.

REFERENCES:
patent: 4374665 (1983-02-01), Koon
patent: 4402770 (1983-09-01), Koon
patent: 4409043 (1983-10-01), Koon
patent: 4533408 (1985-08-01), Koon
patent: 4715891 (1987-12-01), Ovshinsky et al.
patent: 4753675 (1988-06-01), Ovshinsky et al.
patent: 4770723 (1988-09-01), Sagawa et al.
patent: 4792368 (1988-12-01), Sagawa et al.
patent: 4802931 (1989-02-01), Croat
patent: 4851058 (1989-07-01), Croat
patent: 4867785 (1989-09-01), Keem et al.
patent: 4935074 (1990-06-01), De Mooij et al.
patent: 4994109 (1991-02-01), Willman et al.
patent: 5071493 (1991-12-01), Mizoguchi et al.
patent: 5116434 (1992-05-01), Keem et al.
patent: 5597425 (1997-01-01), Akioka et al.
patent: 5815718 (1998-09-01), Tock
patent: 6019859 (2000-02-01), Kanekiyo et al.
patent: 6022424 (2000-02-01), Sellers et al.
patent: 6478889 (2002-11-01), Kanekiyo
patent: 6524399 (2003-02-01), Keem
patent: 0542529 (1993-05-01), None
patent: 0959478 (1999-11-01), None
patent: 01 171209 (1989-07-01), None
patent: 01171209 (1989-07-01), None
patent: 08 264363 (1996-10-01), None
patent: 08264363 (1996-10-01), None
patent: 9835364 (1998-08-01), None
patent: WO-02/067275 (2002-08-01), None
Kanekiyo, H. and Hirosawa, S., “Thick Fe3B/Nd2Fe14B nanocomposite permanent magnet flakes prepared by slow quenching,” Journal of Applied Physics, Jun. 1998.

Affiliated with

Also associated with

Rating

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 Magnetic material, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic material will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3753237