Aligned Sm{sub 2}Fe{sub 17{minus}{delta}}M{sub {delta}}C{ital {sub x}}N{ital {sub y}} (M=metal) magnet produced by post-sintering-gas-solid reaction

Journal Article · Mon Mar 31 23:00:00 EST 1997 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.365426· OSTI ID:496498

Chen, X; Altounian, Z; Stroem-Olsen, J O ^[1]

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1. Department of Physics, Center for the Physics of Materials, McGill University, 3600 University Street, Montreal H3A 2T8, Quebec (Canada)

The principle is discussed for nitriding a sintered Sm{sub 2}(Fe,M){sub 17}C{ital {sub x}} (M=metal) intermetallic compound. It is found that a bulk anisotropic magnet with the main composition of Sm{sub 2}(Fe,M){sub 17}C{ital {sub x}}N{ital {sub y}} can be formed with a density of about 90{percent} of full density. The physical integrity of the magnet is retained. As an example, an anisotropic magnet with the composition of Sm{sub 2}Fe{sub 16.6}Cr{sub 0.4}C{sub 1.2}N{ital {sub y}} shows a coercivity of 6.3 kOe, a remanence, {ital M{sub r}}, of 790 G, and an energy product of 15 MGOe at room temperature. {copyright} {ital 1997 American Institute of Physics.}

• OSTI ID: 496498
• Report Number(s): CONF-961141--
• Journal Information: Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 8 Vol. 81; ISSN JAPIAU; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CARBIDES
CHROMIUM ALLOYS
COERCIVE FORCE
DENSITY
FERROMAGNETIC MATERIALS
IRON ALLOYS
IRON COMPOUNDS
NITRIDATION
NITRIDES
PERMANENT MAGNETS
SAMARIUM ALLOYS
SAMARIUM COMPOUNDS
SINTERING
STOICHIOMETRY