The lithium–indium system

Abstract

A re-examination of the Li–In system, based on thermal and X-ray diffraction analysis of 42 alloys, shows it to be more complex than originally reported. This complexity is more consistent with the analogous Li–Tl and Li–Ga systems. The solid solubility of Li in In is about 1.5 at% Li, while that of In in Li appears to be very low. The homogeneous Li–In phase extends from about 46 at% to between 55 and 63 at% Li, depending on the temperature. Of the 11 new phases, 5 with the nominal compositions Li7In4, Li2In, Li8In3, Li3In, and Li4In(λ) are stable at room temperature, while Li5In2, Li73In27(η), Li11In4, Li4In(κ), Li6In and Li12In occur at higher temperatures.