Abstract
The process of rapid rate sintering of dispersed powders is studied. It is shown that rapid rate sintering results in high density and uniform fine-grained microstructure of the sintered materials. Structure evolution of porous powder packing is analyzed from the viewpoint of the statistics of randomly packed particles with varying average relative density. A new mechanism of rotational rearrangement controlled through grain boundary diffusion and providing uniform densification along with reduction in inter-particle distance is proposed. The advanctages of non-isothermal and rapid heating sintering are discussed.
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Institute for Problems of Materials Science, Ukraine National Academy of Sciences, Kiev. Translated from Poroshkovaya Metallurgiya, Nos. 7–8(408), pp. 30–39, July–August, 1999.
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Skorokhod, V.V. Rapid rate sintering of dispersed systems: Theory, processing, and problems. Powder Metall Met Ceram 38, 350–357 (1999). https://doi.org/10.1007/BF02676168
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DOI: https://doi.org/10.1007/BF02676168