In many industrial applications powdered materials are used for the manufacturing and development of commodities, products, parts, tools, instruments, etc. Examples are in powder metallurgy, in the development of gas sensors, solar cells, thermal barrier coatings, catalysts, pigments, and pharmaceuticals. While in some applications, particle size and size distribution, and particle crystallinity and grain size may be immaterial or irrelevant, in some other applications particle characteristics may play an important role in the characteristics and quality of the final products. It is generally agreed upon that no matter the particles are crystalline or amorphous, as the particle size decreases, the particle reactivity increases. Nanocrystalline materials (grain size < 100 nm), either in bulk or powder form, compared to the polycrystalline materials have enhanced properties, such as hardness, yield strength, corrosion resistance, etc. Therefore, nanocrystalline nanoparticles (grain and particle size < 100 nm), such as quantum dots have superior properties.
Spray Pyrolysis Flame Front Barium Titanate Droplet Surface Emulsion Droplet
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