Particulate binary mixtures: Dependence of packing porosity on particle size ratio

Binary mixtures with significant size ratios are scarcely studied. Yet, contaminants of chromatographic columns or ion-exchange resins have size ratios of delta 0.0035. For delta < 0.0035, the small particles form a monosized dense packing and both wedging and wall effects become negligible.FCT, FEDE