High-Pressure High-Temperature Synthesis of ϵ-Fe2IrN0.24
A high‐pressure high‐temperature synthesis involving initial reaction, nitrogen depletion and annealing yields a new ϵ‐type iron iridium nitride. Energy dispersive X‐ray spectroscopy of metallographic samples evidence a main phase having a molar metal ratio of Fe:Ir = 2:1 within experimental error....
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Veröffentlicht in: | Zeitschrift für anorganische und allgemeine Chemie (1950) 2014-04, Vol.640 (5), p.814-818 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | A high‐pressure high‐temperature synthesis involving initial reaction, nitrogen depletion and annealing yields a new ϵ‐type iron iridium nitride. Energy dispersive X‐ray spectroscopy of metallographic samples evidence a main phase having a molar metal ratio of Fe:Ir = 2:1 within experimental error. Chemical analyses and thermogravimetric measurements quantify the nitrogen content to 1.07 wt % (x = 0.24) and 1.2 wt % (x = 0.27), respectively. Above 750 K, the phase Fe2IrN0.24 decomposes into solid solutions ϵ‐Fe(Ir) and γ‐Fe(Ir) involving the release of N2 at ambient pressure. Magnetic susceptibility data suggest long‐range antiferromagnetic ordering at TN = 27 K. |
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ISSN: | 0044-2313 1521-3749 |
DOI: | 10.1002/zaac.201300609 |