Nitrogen-induced degradation of Nd sub 2 Fe sub 14 B

Nitrogen-induced degradation of Nd sub 2 Fe sub 14 B

Although calculations of interstitial site dimensions suggest that R sub 2 Fe sub 14 B compounds (R = rare earth) should not be able to absorb N atoms to form R sub 2 Fe sub 14 B-N sub x nitrides, several literature reports of nitrogenation and improved magnetic properties have appeared. We found th...

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Veröffentlicht in:Journal of magnetism and magnetic materials 1997-07, Vol.177-181 (2), p.985-986
Hauptverfasser: Gray, E M, Blach, T P
Format: Artikel
Sprache:eng
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Zusammenfassung:Although calculations of interstitial site dimensions suggest that R sub 2 Fe sub 14 B compounds (R = rare earth) should not be able to absorb N atoms to form R sub 2 Fe sub 14 B-N sub x nitrides, several literature reports of nitrogenation and improved magnetic properties have appeared. We found that Nd sub 2 Fe sub 14 B does absorb a considerable amount of nitrogen, up to N/M = 0.26, decomposing the Nd sub 2 Fe sub 14 B to nanocrystalline Fe and unidentified nitride and other species.
ISSN:0304-8853