An X-ray diffraction investigation of molten indium-nickel alloys by the partial interference function method

Abstract

Using the assumption that the partial interference functions of a molten alloy are independent of concentration, the unlike partial, IInNi(K), has been calculated from the total X-ray interference functions obtained for the three compositions 34, 50 and 75 at.% nickel at 970, 992 and 963 degrees C, respectively. The mean value of the first peak position of IInNi(K) is at 2.81 AA-1. Earlier work on the unlike partial interference functions from various liquid alloys is reviewed and it is shown that the comparison of the first peak position of this function with those of the other two partial interference functions of the alloy system can give an indication of the degree of order in the liquid alloy. It is found that the indium-nickel alloy system deviates from a disordered mixture and behaves in a similar way to copper-indium alloys and some containing groups I and IV elements.