Magnetic rare earth/iron/boron and rare earth/cobalt/boron hydri

Details Magnetic rare earth/iron/boron and rare earth/cobalt/boron hydri Magnetic rare earth/iron/boron and rare earth/cobalt/boron hydri

1985-06-19

1987-05-05

Doll, John

Compositions

Magnetic

Chromium or chromium compound containing

252 6255, 252 6257, 252 6258, 252 6259, 148302, 423276, 420900, 420302, 420 83, C01G 3702

Patent

active

046630660

ABSTRACT:
New magnetic hydride Nd.sub.2 Fe.sub.14 BH.sub.x (0<x<5) and family corresponding to other rare earths and yttrium. Possible substitution of Fe by Co. Preparation from Nd.sub.2 Fe.sub.14 B by hydrogenation (ambient temperature; pH.sub.2 >20 bar), which can be reversed to give powdered Nd.sub.2 Fe.sub.14 B. Remarkable magnetic properties.

REFERENCES:
K. Oesterreicher and H. Oesterreicher, "Structure and Magnetic Properties of Nd.sub.2 Fe.sub.14 BH.sub.2.7 " Phys. Stat. Sol. (a) K61-K64.
Arthur L. Robinson, Science, "Powerful New Magnetic Material Found", pp. 920-922, vol. 223, Mar. 2, 1984.
L'Heritier et al., C. R. Acad. Sci. Ser. 2, 1984, vol. 299, No. 13, pp. 849-852.

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