Verification for Particle Size Distribution of Ultrafine Powders by the SAXS Method

The Dividing Distribution Function (DDF) method is one of the methods by which the particle size distribution of ultrafine powder can be evaluated from its small-angle X-ray scattering (SAXS) data. In this paper, the particle size distributions of many different samples were reported, and the reliability of DDF was proved by TEM. For a series of samples, the specific surfaces were measured by the BET method, and also calculated from their particle size distributions obtained by SAXS determination. The two sets of results are systemically compared.