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Title:
NANOCOMPOSITE PERMANENT MAGNETS
Document Type and Number:
WIPO Patent Application WO2005066980
Kind Code:
A3
Abstract:
A nanocomposite, rare earth permanent magnet comprising at least two rare earth- or yttrium-transition metal compounds. The nanocomposite, rare earth permanent magnet can be used at operating temperatures of about 130 to about 300 °C and exhibits improved thermal stability when compared with Nd2Fe14B-based magnets. Methods of making the nanocomposite, rare earth permanent magnets are also shown.

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Inventors:
LIU SHIQIANG (US)
LEE DON (US)
Application Number:
PCT/US2004/043993
Publication Date:
September 15, 2005
Filing Date:
December 30, 2004
Export Citation:
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Assignee:
UNIV DAYTON (US)
LIU SHIQIANG (US)
LEE DON (US)
International Classes:
H01F1/00; H01F1/055; H01F1/057; H01F1/08; H01F41/02; (IPC1-7): H01F1/057; H01F1/055; H01F41/02; H01F1/08; H01F1/00
Domestic Patent References:
WO2003085683A12003-10-16
Foreign References:
EP0957495A21999-11-17
US20020036367A12002-03-28
EP0156482A11985-10-02
Other References:
LIU W ET AL: "Phase transformation, structure and magnetic properties of Nd-Fe-B-V alloys and their nitrides prepared by mechanical alloying", JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, ELSEVIER SCIENCE PUBLISHERS, AMSTERDAM, NL, vol. 219, no. 3, 11 September 2000 (2000-09-11), pages 253 - 259, XP004208745, ISSN: 0304-8853
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