Abstract
Experimental small-angle x-ray-scattering cross sections from a commercial Li-Al alloy containing a high density of precipitate particles have been analyzed by nonlinear fitting to a theoretical scattering curve based on a hard-sphere-liquid model previously introduced. It was found that the experimental curve was better reproduced when a repulsive step potential that kept the precipitate particles at an average distance greater than their hard-core diameters was used in place of the simple Percus-Yevick model. For the case analyzed, this distance was 1.58 times the particles' hard-core diameter, and the potential repulsive barrier was 0.56kT.
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