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AbstractAbstract
[en] Ferromagnetic compositions having intrinsic magnetic coercivities at room temperature of at least 1,000 Oersteds are formed by the controlled quenching of molten rare earth -transition metal alloys. Hard magnets may be inexpensively formed from the lower atomic weight lanthanide elements and iron. The preferable compositions lie within: at least one of Fe, Ni, Co (20 to 70 atomic percent); and at least one of Ce, Pr, Na, Sm, Eu, Tb, Dy, Ho, Er, Tm, Y (80 to 30 atomic percent). (author)
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Source
22 Dec 1982 (APP); 16 Jun 1981 (PR); 9 p; GB PATENT DOCUMENT 2100286/A/; US PRIORITY 274070; Priority date: 16 Jun 1981 (PR)
Record Type
Patent
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