The isothermal section phase diagram of the La–Fe–Ge ternary system at 773 K

The isothermal section of the phase diagram of the La–Fe–Ge ternary system at 773 K was investigated by X-ray powder diffraction (XRD), differential thermal analysis (DTA) and optical microscopy. The existences of 12 binary compounds, La 3Ge, La 5Ge 3, La 4Ge 3, La 5Ge 4, LaGe, La 2Ge 3, LaGe 2− x ,...

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Veröffentlicht in:	Journal of alloys and compounds 2008-10, Vol.465 (1), p.216-221
Hauptverfasser:	Zhuang, Y.H., Chen, X., Yan, J.L., Li, K.F., Ma, C.H.
Format:	Artikel
Sprache:	eng
Schlagworte:	Cross-disciplinary physics: materials science rheology Crystal structure Exact sciences and technology Materials science Metals and alloys Phase diagrams and microstructures developed by solidification and solid-solid phase transformations Phase diagrams of metals and alloys Physics Quenching X-ray diffraction
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Beschreibung
Zusammenfassung:	The isothermal section of the phase diagram of the La–Fe–Ge ternary system at 773 K was investigated by X-ray powder diffraction (XRD), differential thermal analysis (DTA) and optical microscopy. The existences of 12 binary compounds, La 3Ge, La 5Ge 3, La 4Ge 3, La 5Ge 4, LaGe, La 2Ge 3, LaGe 2− x , Fe 3Ge, Fe 5Ge 3, Fe 6Ge 5, FeGe, FeGe 2, were confirmed. Three ternary compounds LaFe 2Ge 2, LaFe 0.6Ge 2 and LaFeGe 3 were confirmed too. Ge in Fe, LaGe, LaGe 2− x and Fe 5Ge 3 and Fe in LaFe 0.6Ge 2 have solid solution phenomenon. This section consists of 18 single-phase regions, 37 two-phase regions, and 20 three-phase regions.
ISSN:	0925-8388 1873-4669
DOI:	10.1016/j.jallcom.2007.10.149