Process for producing permanent magnets and products thereof

Metal treatment – Stock – Magnetic

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

420 83, 420121, 75244, 75245, 75246, H01F 1053

Patent

active

051103770

ABSTRACT:
A process for producing permanent magnet materials, which comprises the steps of:

REFERENCES:
patent: 4402770 (1983-09-01), Koon
patent: 4601875 (1986-07-01), Yamamoto et al.
patent: 4770723 (1988-09-01), Sagawa et al.
patent: 4773950 (1988-09-01), Fujimura et al.
patent: 4792368 (1988-12-01), Sagawa et al.
patent: 4826546 (1989-05-01), Yamamoto et al.
patent: 4859255 (1989-08-01), Fujimura et al.
"Precise Alloy Materials", Beijing Iron and Steel Institute, Mar., 1984, pp. 71-82 and 108-109.
Croat et al, "Pr-Fe and Nd-Fe-based Materials: A New Class of High-Performance . . . ", J. Appl. Phys., 55(6), Mar. 15, 1984.
Chaban et al, "Ternary {Nd,Sm,Gd}-Fe-B Systems", Fed. Dopov. Akad.Nauk, URSR, SerA: Fig-Mat. Tekh, Nauki 1979(10) 873-876.
Leamy et al, "The Structure of Co-Cu-Fe-Ce Permanent Magnets", IEEE Trans. on Mag., vol. MAG-9, No. 3, Sep. 1973.
Melton et al, "An Electron Microscope Study of Sm-Co-Cu-Based Magnetic Materials . . . ", Jour. Appl. Phys., vol. 48(6), Jun. 1977.
Senno et al, "Magnetic Properties of Sm-Co-Fe-Cu Alloys for Permanent . . . ", Japan. J. Appl. Phys. vol. 14 (1975), No. 10.
J. J. Croat, "Preparation and Coercive Force of Melt-Spun Pr-Fe Alloys", Jour. Appl. Phys. Lett. 37(12), Dec. 15, 1980.
Koon et al, "Abstract: A New Class of Melt Quenched Amorphous Magnetic Alloys", J. Appl. Phys. 52(3), Mar. 1981.
Koon et al, "Rare--Earth Transition Metal Exchange Interactions in Amorphous . . . ", J. Appl. Phys. 53(3), Mar. 1982.
Koon et al, "Magnetic Properties of Amorphous and Crystallized . . . ", J. Appl. Phys. Lett. 39(10), Nov. 15, 1981.
Handbook on the Physics and Chemistry of Rare Earths, vol. 2, 1979, Chap. 16, Rhyne, "Amorphous Magnetic Rare . . . ".
Sagawa et al, "Permanent Magnet Materials Based . . . ", The Research Institute for Iron, Steel & Other Metals.
Nezu et al, "Sm.sub.2 (Co,Fe,Cu).sub.17 Permanent Magnet Alloys with Additive . . . ", Magnetic & Electronic Materials Research Labs.
Sagawa et al, "New Material for Permanent Magnets on a Base of Nd and Fe", J. Appl. Phys. 55(6), Mar. 15, 1984.
Kabacoff et al, "Thermal and Magnetic Properties of Amorphous . . . ", J. Appl. Phys. 53(3), Mar. 1982.
Koon et al, Crystallization of FeB Alloys with Rare . . . ", J. Appl. Phys. 55(6), Mar. 15, 1984.
Croat et al, "High-Energy Product Nd-Fe-B Permanent Magnets", J. Appl. Phys. Lett. 44(1), Jan. 1, 1984.
Hadjipanayis et al, "New Iron-Rare-Earth Based Permanent Magnet Materials", J. Appl. Phys. Lett. 43(8), Oct. 15, 1983.
El Masry et al, "Magnetic Moments and Coercive Forces in the Hexagonal Boride . . . ", Magnetic Properties, Bd. 74 (1983).
Stadelmaier et al, "Cobalt-Free and Samarium Free Permanent Magnet . . . ", Dept. of Materials Eng. NC St. Univ., Sep. 1, 1983.
Herbst et al, "Relationships Between Crystal Structure . . . ", Physical Review B., 29, 4176 (1984).
Stadelmaier, "The Neodymium-Iron Permanent Magnet Breakthrough", MMPA Workshop, Jan. 1984.
Topp, "The Chemistry of the Rare-Earth Elements", Elsevier Pub. Co., 1965.
El Masry et al, "Substitution of Iron for Cobalt in Rare Earth . . . ", Dept. of Materials Eng., NC St. Univ., Feb. 1983.
El Masry et al, "Phase Equilibria in the Co-Sm-B System", Jour. of the Less-Common Metals, 96(1984) 165-170.
Robinson, "Powerful New Magnet Material Found", Science, vol. 233, Mar. 7, 1984.
Givord, "Magnetic Properties and Crystal Structure . . . ", Solid State Communications, vol. 50, No. 6, pp. 497-499, 1984.
Nagel et al, "Influence of Cu-Content on the Hard . . . ", IEEE Trans. on Mags., vol. MAG-14, No. 5, Sep. 1978.
Ojima et al, "Magnetic Properties of a New Type of Rare-Earth . . . ", IEEE Trans. on Mags., vol. MAG-13, No. 5, Sep. 1977.
Gupta et al, "Magnetization Process and Reversal . . . ", Jour. of Magnetism and Magnetic Materials 40 (1983) 32-36.
Chikazumi, "Physics of Magnetism", 497-499.
Mainichi Daily News, "Strongest Magnet Unveiled", Saturday, Jun. 4, 1983.
Japanese High Technology, "Request for New Magnetic Material . . . ", vol. 4, No. 5, Aug. 1984.
"Neomax--Neodymium-Iron-Magnet", Sumitomo Special Metals Co., Ltd.
Koo, "Partial Substitution of Sm with Neodymium . . . ", IEEE Trans. on Mags., vol. MAG-20, No. 5, Sep. 1984.
Givord, "Crystal Chemistry and Magnetic Properties . . . ", Report and proceedings of a Workshop in Burssels on Oct. 25, 1984.
Lee, "Hot-Pressed Neodymium-Iron-Boron Magnets", Appl. Phys. Lett. 46(8) Apr. 15, 1985.
Burzo, "Some New Results in the Field of Magnetism . . . ", Lecture, 2nd Int. Conf. on Mag. Mat., Poland, Sep. 1985.
Ormerod, "Processing and Physical Metallurgy . . . ", Report and Proceedings of a Workshop in Burssels on Oct. 25, 1984.
Handbook on the Physics and Chemistry of Rare Earths, vol. 2, Chap. 15, "Magnetostrictive RFe.sub.2 Intermetallic Compounds".
Greedan et al, "An Analysis of the Rare Earth Contribution . . . ", Journal of Solid State Chemistry 6, 387-395 (1973).
Ray et al, "Easy Directions of Magnetization in Ternary . . . ", IEEE Trans. Mags., Sep. 1972.
Lee, "The Future of Rare Earth-Transition Metal Magnets . . . ", J. Appl. Phys. 52(3), Mar. 1981.
Ohashi et al, "Effects of Praseodymium Substitution on Precipitation Hardened Rare Earth Magnets", 493-501.
Handbook on the Physics and Chemistry of Rare Earths, vol. 2, Chap. 14, "Magnetic Properties of Intermetallic . . . ", 1979.
Neumann et al, "Line Start Motors Designed with Nd-Fe-B Permanent Magnets", 76-89.
Hadjipanaysis et al, "Electronic and Magnetic Properties . . . ", Jour. of Mag. and Mag. Mat., 21 (1980) 101-107.
Croat, "Magnetic Hardening of Pr-Fe and Nd-Fe Alloys . . . ", J. Appl. Phys. 53(4), Apr. 1982.
Japanese Publication, "Powder Metallurty-Applied Products (II)-Magnetic Materials".
Japanese Publication, "Magnetic Body Handbook".
Japanese Publication, "Hard Magnetic Material".
Japanese Publication, "Magnetic Materials".
Japanese Publication, "Magnetic Materials of the Modern Age".
Hadjipanayis et al, "Investigation of Crystalline Iron-Platinum Nickel and Amorphous . . . ", Final Technical Report, Mar. 15, 1983.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Process for producing permanent magnets and products thereof 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 producing permanent magnets and products thereof, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for producing permanent magnets and products thereof will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1409860

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.