X-ray diffraction studies of the Hg–In alloy system

The Hg–In phase diagram was investigated by X-ray diffraction up to 55 at.% In. In the range 0–17 at.% In β phase, a primary solid solution of In in Hg was found. There is evidence for a β_t phase at 17 at.% In for which a tetragonal b.c. cell (a = b = 3.48, c = 3.310 Å) is proposed. At 50 at.% In the alloy crystallizes with a rhombohedral cell (a₀ = 3.008 Å, α = 73°20′). These results correct some previous published phase-diagrams and are consistent with residual resistivity curves.