Abstract
The isothermal section of the Lu–Fe–Ga ternary system at 773 K was investigated and constructed based on X-ray powder diffraction analysis. Thirteen binary compounds, Lu2Fe17, Lu6Fe23, LuFe2, LuGa3, LuGa2, Lu3Ga5, LuGa, Lu3Ga2, Lu5Ga3, Fe3Ga, Fe6Ga5, Fe3Ga4, FeGa3, nine ternary solid solutions, T1-LuFe2–1.43Ga0–0.57, T2-LuFe1.34–0.92Ga0.68–1.08, T3-LuFe0.52–0.26Ga1.48–1.74, T5-LuFe2.04–1.72Ga0.96–1.28, T6-Lu6Fe23–21.4Ga0–1.6, T7-Lu2Fe17–14.5Ga0–3.5, T8-Lu2Fe12.9–8.1Ga4.1–8.9, T9-LuFe6.8–5.5Ga5.2–6.5, T10-LuFe5.2–4.5Ga6.8–7.5, and two ternary compounds, T4-LuFe2.35Ga0.65 and T11-Lu2FeGa8 have been confirmed. The structures of the five new ternary compounds or solid solution T2, T3, T4, T5 and T8 are determined by Rietveld refinement method.
Acknowledgements
The work was supported by the National Natural Science Foundation of China (Grant Nos. 50871070, 51171117, and 51101103) and Shenzhen Science and Technology Research (Grant No. JC200903120081A).