Magnetic material

Details Magnetic material Magnetic material

1992-10-16

1996-01-09

Sheehan, John P.

Metal treatment

Stock

Magnetic

420 83, 420125, H01F 1055

Patent

active

054825733

ABSTRACT:
A magnetic material with an improved maximum energy product useful for high performance permanent magnet, bond magnet and other applications is disclosed. The magnetic material is expressed in a general formula R1.sub.x R2.sub.y M.sub.100-x-y where R1 is at least one element selected from the rare earth elements, R2 is at least one element selected from elements having an atomic radius in a range of 0.156 to 0.174 nm, M is at least one element selected from Fe and Co and x and y are atomic percent individually defined as x.gtoreq.2, y.gtoreq.0.01 and 4.ltoreq.x+y.ltoreq.20, and M occupying 90 atomic percent or more in the principal phase of the compound.

REFERENCES:
patent: 4710242 (1987-12-01), Yamagishi et al.
patent: 5017247 (1991-05-01), Honkura et al.
patent: 5135584 (1992-08-01), Fujiwara
Patent Abstracts of Japan, vol. 11, No. 365 (C-460)(2812), Nov. 27, 1987, & JP-A-62-136-550 Jun. 19, 1987.
Patent Abstracts of Japan, vol. 13, No. 58 (E-714)(3406), Feb. 9, 1989, & JP-A-63-248-102, Oct. 14, 1988.
IEE Transactions on Magnetics, vol. 23, No. 5, pp.2705-2707, Sep., 1987, Y. Fukui, et al., "Effect Of Zirconium Upon Structure And Magnetic Properties Of 2-17 Type Rare Earth-Cobalt Magnets".
Patent Abstracts of Japan, vol. 13, No. 293 (C-615)(3641), Jul. 6, 1989, & JP-A-1-87-745, Mar. 31, 1989.

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