X-ray diffraction experiments with Bi-In-melts

Using MoK α-radiation and a theta-theta diffractometer from molten In and Bi as well as six molten Bi-In alloys (8; 22; 27; 33.3; 50; and 77 at % Bi)intensity curves were obtained at 100 C above the liquidus temperature. The measurements were performed in the q-region up to 14.5 Angstroem-1. From the Fourier transform of the structure factors coordination numbers Nsup(I)sub(t)sub(o)sub(t) and radii rsup(I)sub(t)sub(o)sub(t) were obtained. The concentration dependency if Nsup(I)sub(t)sub(o)sub(t) and rsup(I)sub(t)sub(o)sub(t) leads to the conclusion, that the Bi-In melts belong to the compound forming melts. (orig.)