Nanocomposite magnet

Details Nanocomposite magnet Nanocomposite magnet

2007-08-28

2007-08-28

Sheehan, John P. (Department: 1742)

Metal treatment

Stock

Magnetic

C148S301000

Reexamination Certificate

active

10432862

ABSTRACT:
A nanocomposite magnet has a composition represented by (Fe1-mTm)100-x-y-z-nQxRyTizMn, where T is at least one of Co and Ni, Q is at least one of B and C, R is at least one rare earth element that always includes at least one of Nd and Pr and optionally includes Dy and/or Tb, and M is at least one element selected from the group consisting of Al, Si, V, Cr, Mn, Cu, Zn, Ga, Zr, Nb, Mo, Ag, Hf, Ta, W, Pt, Au and Pb. The mole fractions x, y, z, m and n satisfy 10 at %<x≦20 at %, 6 at %≦y<10 at %, 0.5 at %≦z≦12 at %, 0≦m≦0.5 and 0 at %≦n≦10 at %, respectively. The nanocomposite magnet has an oxygen content of at most about 1,500 ppm by mass.

REFERENCES:
patent: 4585473 (1986-04-01), Narasimhan et al.
patent: 4597938 (1986-07-01), Matsuura et al.
patent: 4664724 (1987-05-01), Mizoguchi et al.
patent: 4770723 (1988-09-01), Sagawa et al.
patent: 4802931 (1989-02-01), Croat
patent: 4836868 (1989-06-01), Yajima et al.
patent: 4845837 (1989-07-01), Lloyd
patent: 4851058 (1989-07-01), Croat
patent: 4935074 (1990-06-01), De Mooij et al.
patent: 4994109 (1991-02-01), Willman et al.
patent: 5022939 (1991-06-01), Yajima et al.
patent: 5049203 (1991-09-01), Mukai et al.
patent: 5049208 (1991-09-01), Yajima et al.
patent: 5190684 (1993-03-01), Yamashita et al.
patent: 5209789 (1993-05-01), Yoneyama et al.
patent: 5225004 (1993-07-01), O'Handley et al.
patent: 5230749 (1993-07-01), Fujimura et al.
patent: 5240513 (1993-08-01), McCallum et al.
patent: 5595608 (1997-01-01), Takebuchi et al.
patent: 5597425 (1997-01-01), Akioka et al.
patent: 5665177 (1997-09-01), Fukuno et al.
patent: 5666635 (1997-09-01), Kaneko et al.
patent: 5725792 (1998-03-01), Panchanathan
patent: 5834663 (1998-11-01), Fukuno et al.
patent: 5858123 (1999-01-01), Uchida et al.
patent: 5872501 (1999-02-01), Hamano et al.
patent: 5905424 (1999-05-01), Panchanathan
patent: 6022424 (2000-02-01), Sellers et al.
patent: 6172589 (2001-01-01), Fujita et al.
patent: 6183571 (2001-02-01), Inoue et al.
patent: 6183572 (2001-02-01), Panchanathan et al.
patent: 6280536 (2001-08-01), Inoue et al.
patent: 6302972 (2001-10-01), Hirosawa et al.
patent: 6332933 (2001-12-01), Ma et al.
patent: 6352599 (2002-03-01), Chang et al.
patent: 6386269 (2002-05-01), Kanekiyo et al.
patent: 6471786 (2002-10-01), Shigemoto et al.
patent: 6478889 (2002-11-01), Kanekiyo
patent: 6648984 (2003-11-01), Takaki et al.
patent: 6706124 (2004-03-01), Kanekiyo et al.
patent: 6790296 (2004-09-01), Kanekiyo et al.
patent: 6796363 (2004-09-01), Arai et al.
patent: 6814776 (2004-11-01), Kanekiyo et al.
patent: 6890392 (2005-05-01), Kanekiyo et al.
patent: 2001/0015239 (2001-08-01), Kanekiyo
patent: 2002/0017339 (2002-02-01), Kanekiyo et al.
patent: 2002/0117235 (2002-08-01), Kanekiyo et al.
patent: 2003/0136468 (2003-07-01), Kanekiyo et al.
patent: 2004/0051614 (2004-03-01), Kanekiyo et al.
patent: 2004/0099346 (2004-05-01), Nishiuchi et al.
patent: 2004/0134567 (2004-07-01), Kanekiyo et al.
patent: 2004/0194856 (2004-10-01), Miyoshi et al.
patent: 2005/0040923 (2005-02-01), Miyoshi
patent: 197 39 959 (1998-03-01), None
patent: 0 197 712 (1986-03-01), None
patent: 0 197 712 (1986-10-01), None
patent: 0 302 395 (1989-02-01), None
patent: 0 529 148 (1993-03-01), None
patent: 0 632 471 (1995-01-01), None
patent: 0 874 375 (1998-10-01), None
patent: 0 959 478 (1999-11-01), None
patent: 1 018 751 (2000-07-01), None
patent: 1 061 532 (2000-12-01), None
patent: 1 158 545 (2001-11-01), None
patent: 1 207 537 (2002-05-01), None
patent: 1 371 434 (2003-12-01), None
patent: 199904 (1989-01-01), None
patent: 59-046008 (1984-03-01), None
patent: 60-009852 (1985-01-01), None
patent: 61-140350 (1986-06-01), None
patent: 62-062503 (1987-03-01), None
patent: 63-155601 (1988-06-01), None
patent: 63-190138 (1988-08-01), None
patent: 63-301505 (1988-12-01), None
patent: 64-000703 (1989-01-01), None
patent: 64-007501 (1989-01-01), None
patent: 64-007502 (1989-01-01), None
patent: 64-081301 (1989-03-01), None
patent: 01-100242 (1989-04-01), None
patent: 01-162702 (1989-06-01), None
patent: 01-204401 (1989-08-01), None
patent: 02-247307 (1990-10-01), None
patent: 02-298003 (1990-12-01), None
patent: 2-298003 (1990-12-01), None
patent: 3-260018 (1991-11-01), None
patent: 3-261104 (1991-11-01), None
patent: 03-264653 (1991-11-01), None
patent: 04-147604 (1992-05-01), None
patent: 05-269549 (1993-10-01), None
patent: 05-315174 (1993-11-01), None
patent: 06-32471 (1994-02-01), None
patent: 06-140235 (1994-05-01), None
patent: 06-338407 (1994-12-01), None
patent: 7-122412 (1995-05-01), None
patent: 07-226312 (1995-08-01), None
patent: 08-053710 (1996-02-01), None
patent: 08-124730 (1996-05-01), None
patent: 8-162312 (1996-06-01), None
patent: 08-162312 (1996-06-01), None
patent: 08-167515 (1996-06-01), None
patent: 08-322175 (1996-12-01), None
patent: 09-155507 (1997-06-01), None
patent: 09-155513 (1997-06-01), None
patent: 09-260122 (1997-10-01), None
patent: 10-53844 (1998-02-01), None
patent: 10-088294 (1998-04-01), None
patent: 10-261515 (1998-09-01), None
patent: 10-280010 (1998-10-01), None
patent: 10-282790 (1998-10-01), None
patent: 11-8109 (1999-01-01), None
patent: 11-071646 (1999-03-01), None
patent: 11-101607 (1999-04-01), None
patent: 11-206075 (1999-07-01), None
patent: 11-323509 (1999-11-01), None
patent: 2000-079449 (2000-03-01), None
patent: 2000-079451 (2000-03-01), None
patent: 2000-234137 (2000-08-01), None
patent: 2000-235909 (2000-08-01), None
patent: 2000-348919 (2000-12-01), None
patent: 2001-244107 (2001-09-01), None
patent: 2002-64009 (2002-02-01), None
patent: 2002-80921 (2002-03-01), None
patent: 2002-175908 (2002-06-01), None
patent: 2002-212686 (2002-07-01), None
patent: 2002-234137 (2002-08-01), None
patent: 2002-239688 (2002-08-01), None
patent: 2002-302702 (2002-10-01), None
patent: 100201601 (1999-03-01), None
patent: 2 136 069 (1999-09-01), None
patent: WO99/21196 (1999-04-01), None
patent: WO 00/03403 (2000-01-01), None
patent: WO 00/52715 (2000-02-01), None
patent: WO 00/45397 (2000-08-01), None
patent: WO 00/52713 (2000-09-01), None
patent: WO 01/68297 (2001-09-01), None
patent: 2002-64009 (2002-02-01), None
patent: WO 02/067275 (2002-08-01), None
patent: WO 02/093591 (2002-11-01), None
Coehoorn et al., “Novel Permanent Magnetic Materials Made by Rapid Quenching” Journal de Physique, Colloque C8, Supplément au No. 12, Tome 49, Dec. 1988, pp. 669-670.
Chang et al., “The Effects of Refractory Metals on the Magnetic Properties of Properties of α-Fe/R2Fe14B-Type Nanocomposites” IEEE Transactions on Magnetics, vol. 35, No. 5 Sep. 1999, pp. 3265-3267.
Yao, J.M. et al, “Coercivity of Ti-modified (α-Fe)-Nd2Fe14B Nanocrystalline Alloys”, Journal of Applied Physics, Nov. 15, 1994, pp. 7071-7073, vol. 76, No. 10, American Institute of Physics, Woodbury, New York, USA.
Chang et al., “High Performance α-Fe/Nd2Fe14B-type Nanocomposites”, pp. 121-123, Jan. 1998, Applied Physics Letters, vol. 72, No. 1.
Chiriac, et al., “Nd8Fe73Co5Hf2B12strip cast alloy”, Journal of Applied Physics, vol. 87 No. 9, May 2000, pp. 5338-5340.
Lewis L H et al; “Compositional Clustering in ND2FE14B Melt-Spun Ribbons” Journal of Applied Physics, American Institute of Physics. New York, US, vol. 87, No. 9, May 1, 2000, pp. 4735-4737.
Chang et al., “Magnetic and Microstructure Studies of Boron-Enriched(Nd0.95La0.05))11Fe76.5—xCoxTi2B10.5(x=0-15) Melt-Spun Ribbons”, pp. 3312-3314, Sep. 2000, IEEE Transactions on Magnetics, vol. 36, No. 5.
Chang et al., “The Effect of La-Substitution on the Microstructure and Magnetic Properties of Nanocomposite NdFeB Melt Spun Ribbons”, pp. 65-70, Mar. 1997, Journal of Magnetism and Magnetic Materials, vol. 167, Nos. 1-2.
Chang et al., “High Performance α-Fe/R2Fe14B-Type Nanocomposites with Nominal Compositions of (Nd,La)9.5Fe78 xCoxCr2B10.5”, Journal of Magnetism and Magnetic Materials, vol. 189, No. 1, (1998), pp. 55-61.
Chang, et al.,

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