Permanent magnet

Details Permanent magnet Permanent magnet

1983-09-15

1988-09-27

Sheehan, John P.

Metal treatment

Stock

Magnetic

420 83, 420121, 75244, 75245, 75246, H01F 104

Patent

active

047739509

ABSTRACT:
A magnetically anisotropic sintered permanent magnet of the FeBR system in which R is sum of R.sub.1 and R.sub.2 wherein:

REFERENCES:
patent: 2167240 (1939-07-01), Hensel
patent: 3560200 (1971-02-01), Nesbitt et al.
patent: 3684593 (1972-08-01), Benz et al.
patent: 4063970 (1977-12-01), Steingroever
patent: 4401482 (1983-08-01), Green et al.
patent: 4533408 (1985-08-01), Koon
Givord, "Crystal Chemical and Magnetic Properties of the R.sub.2 Fe.sub.14 B Family of Compounds, Pre-Print, pp. 131-142, Oct. 1984.
Lee, Appl. Phys. Lett., 46, vol. 8, Apr. 15, 1985, "Hot-Pressed Neodymium-Iron-Boron Magnets", pp. 790-791.
Chapter 15, "Handbook on the Physics and Chemistry of Rare Earths", vol. 2, Magnetostrictive RFe.sub.2 Intermetallic Compounds, p. 231.
Greedan et al., Jour. of Solid State Chemistry, 6, 1975, "An Analysis of the Rare Earth Contribution to the Magnetic . . . ", pp. 387-395.
Lee, J. Appl. Phys., vol. 52, Mar. 1981, "The Future of Rare Earth-Transition Metal Magnets of Type RE.sub.2 TM.sub.17 ", pp. 2549-2553.
Ohashi, "Effects of Praseodymium Substitution of Precipitation Hardened Rare Earth Magnets", pp. 493-501, Jun. 1981.
Chapter 14, "Handbook of the Physics and Chemistry of Rare Earths", vol. 2, 1979, Magnetic Properties of Intermetallic Compounds . . . , pp. 55-56, 155-161.
Neumann et al., "Line Start Motors Designed with Nd-Fe-B Permanent Magnets", pp. 77-89, May 1985.
J. J. Croat, "Permanent Magnet Properties of Rapidly Quenched Rare Earth-Iron Alloys", IEEE Trans. Mag., vol. MAG-18, No. 6, Nov., 1982, pp. 1442-1447.
R. K. Mirshra, "Microstructure of Melt-Spun Neodymium-Iron-Boron Magnets", International Conference on Magnetism, 1985.
Hadjipanayis et al., Final Technical Report: 0001AE, "Investigation of Crystalline Iron-Platinum Nickel and Amorphous Rare Earth . . . ", Mar. 15, 1983.
Koo, IEEE Transactions on Magnetics, vol. MAG-20, No. 5, Sep., 1984, "Partial Substitution of SM with Neodymium, Praseodymium, . . . ".
Burzo, "Some New Results in the Field of Magnetism of Rare-Earth Compounds", pp. 1-17, and drawings, Mar. 1985.
Ormerod, "Processing and Physical Metallurgy of NdFeB and Other R.E. Magnets", Pre-Print, pp. 69-92, Oct. 1984.
IEEE Trans. on Magnetics., vol. MAG-18, No. 6, Nov. 1982, pp. 1448-1450, Koon et al., "Composition Dependence of the Coercive . . . ".
IEEE Trans. on Magetics, vol. MAG-20, No. 5, part 2, Sep., 1984, pp. 1584-1589, Sagawa et al., "Permanent Magnet Materials . . . ".
Hadjipanaysis et al., "Electronic and Magnetic Properties of Rare-Earth-Transition-Metal Glasses", Sep. 27, 1979, pp. 101-107.
Croat, "Magnetic Hardening of Pr-Fe and Nd-Fe Alloys by Melt Spinning", J. Appl. Phys., Apr. 4, 1982, pp. 3161-3169.
"Powder Metallurgy--Applied Products (II)--Magnetic Materials", 1964.
Chikazumi et al., "Magnetic Body Handbook", 1975.
"Hard Magnetic Material", vol. 3, Magnetic Engineering Seminar, edited by Ida et al.
Kaneko et al., "Magnetic Materials", Nov. 1977.
"Magnetic Materials of Modern Age", edited by Mito-Kato-Gijutsu Kyokai, Jun. 5, 1981.

Affiliated with

Also associated with

Rating

Permanent magnet does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Permanent magnet, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Permanent magnet will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2396491