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Erschienen in:
2005 | OriginalPaper | Buchkapitel
Hydride Phases in Sm2Fe17-NH3 System
verfasst von : V. N. Fokin, M. Yu. Shuľga, B. P. Tarasov, E. E. Fokina, I. I. Korobov, A. G. Burlakova, S. P. Shilkin
Erschienen in: Hydrogen Materials Science and Chemistry of Carbon Nanomaterials
Verlag: Springer Netherlands
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The interaction of the intermetallic compound Sm2Fe17 with ammonia was investigated at an initial pressure of ammonia of 0.6–0.8 MPa in an interval of the temperatures of 150–500°C in the presence of 10 mass% (from the quantity of intermetallide entered in reaction) of NH4Cl as a process activator. It was established that depending on temperature of interaction in Sm2Fe17-NH3 system there is both the process of hydrogenation with a formation of hydride phase of initial intermetallic compound, and the disproportionation process with an isolation of hydride phase of new intermetallide SmFe3. The reaction products are the high-dispersed powders. The magnetic properties of products of an interaction of Sm2Fe17 with ammonia were investigated.