Classification charts composites

Apart from density and particle size, several other solid properties, including angularity, surface roughness and composition may also significantly affect the quality of fluidization. However, in many cases Geldart s classification chart is still a useful starting point to examine, fluidization quality of a specific gas-solid system. 

Over the years, scientists have developed a very detailed and somewhat complex system for the classification of meteorites. It is based on the chemical composition and (to a somewhat lesser degree) the physical characteristics of meteorites. The chart below summarizes the main elements of the system. 

To better identify the boundaries of the oil-in-water phase and how its characteristics vary with small fluctuations in composition, we extended our analyses of the ternary phase diagram to include more detailed characterization of each phase and a higher resolution map of the oil-water phase. Two lipids— DOPA, an anionic lipid, and lecithin, a zwitterionic neutral lipid—were compared to determine the effect of lipid head group. Five different characterization methods were employed (1) visual classification of the phases, (2) buoyant density, (3) fluorescence quenching, (4) FT-IR, and (5) Cryo-TEM. The rationale for each technique is summarized in Table 15.2. A flow chart for utilizing the information obtained from these methods was developed to objectively evaluate the oil-in-water phase (Fig. 15.5). 

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