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Features of the plasma processing of agglomerated metal oxide powders and the deposition of coatings of these powders, which consist of hollow spherical particles are considered in a particular case of powdered zirconium dioxide. It is shown that the formation of zirconia splats (melt drops spread over and solidified on a substrate surface) during the collision of hollow drops with the substrate has a more stable character as compared to the case of continuous (dense) particles of the same mass. Advantages of using hollow powders in the thermal spraying of coatings are discussed.
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Солоненко et al. (2008) studied this question.
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