A variety of binary intermetallic compounds of late transition metals with low-melting post-transition metals have been synthesized in bulk quantities by reacting molten metal dispersions with fine metal powders in hot polyalcohol solvents. Fourteen distinct intermetallics were formed using this technique: SbSn, FeSn2, Cu6Sn5, CoSn3, Ni 3Sn4, FeGa3, NiGa4, Cu 9Ga4, CoGa3, Ni2In3, InSb, In5Bi3, InBi, and Bi3Ni. Notable among these are a low-temperature phase (α-CoSn3), textured intermetallic powders with anisotropic morphologies (α-CoSn3 and FeSn2), and superconductors (Bi3Ni and In 5Bi3). Reaction pathway studies suggest that the molten low-melting metals diffuse into the larger higher melting powders, forming intermetallic compounds directly in a liquid-phase medium from bulk-scale powders of the constituent elements.
All Science Journal Classification (ASJC) codes
- Chemical Engineering(all)
- Materials Chemistry