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D.c. plasma-spouted/fluidized bed was applied to the granulation of spherical alloy grains from metal powder mixtures. From a mixture of iron powder (d p = 149-210 μm) and aluminum powder (d p = 74-88 μm and 125-149 μm) alloy grains of 1-5 mm in diameter were obtained. The grains exhibited a dense homogeneous core and a porous nonhomogeneous shell structure. The grains were quite...
This paper describes experiments which were conducted to determine the optimum composition of fiberglass reinforced plastic for tracking resistance. The evaluation of tracking resistance was conducted by the inclined plane method and a long-term accelerated voltage test under wet and contaminated conditions. Results show that the components having the greater effect on tracking resistance are glass...
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