| This article presents the development of nanoparticle form measurement for process characterization of the nanoparticle fabrication process known as the submerged arc nanoparticle synthesis system (SANSS) to prepare nanoparticles with desired particle roundness. An in-process sample preparation and particle sizing system using dynamic light scattering principle was developed to analyze the particle shape properties and characterize the nanoparticle synthesis process. The particle shape contours are measured by a transmission electron microscope with optical magnification of x100k to quantify the nanoparticle sphericity. Significant amount of the particle measurement for each experiment was performed to ensure data accuracy. The experimental results revealed that the discharge pulsed peak current plays the most significant effect on the sphericity of the TiO2 particles and the best sphericity of prepared nanoparticles can be achieved approximately 1%. |
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