SPARK PLASMA SINTERING THE COMPOSITES OF BIMODAL COPPER POWDERS

E Grigoryev, P Nefedova
unpublished
The present work is devoted to analysis of relations between the physical, mechanical properties and microstructure of the material produced by spark-plasma sintering (SPS) of bimodal copper powders. The used starting powders were bimodal mixtures of nano-and micro-sized copper powders, including the pre heat treatment of these powders in a hydrogen atmosphere. As a result, it was studied the influence of sintering parameters on the final density, microstructure and mechanical properties of
more » ... l properties of bimodal copper sintered compacts. It was also produced a comparison of physical and mechanical properties of sintered samples obtained by SPS and by hot pressing (HP) from these bimodal copper powders.
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