AN INNOVATIVE METHOD FOR THE FABRICATION OF COMPOSITE RODS REINFORCED WITH WASTE MATERIALS

The paper presents the results of examinations of composite samples in which the reinforcement is waste fly ash from power plants, while matrix is aluminum (99,98 wt.%). The agglomerates of master composite obtained by mechanical alloying were subjected to hot plastic consolidation to transform the powder into a solid material, and thus formed compacts were heated to a temperature of 350-400°C and extruded by KOBO^® method. The obtained cylindrical samples were analyzed by computed tomography, which revealed a satisfactory level of the distribution of the reinforcing phase at a 25 wt.% fly ash concentration, and absence of the areas characterized by too high concentration of ceramic particles, which may act as a source of the adverse phenomenon of agglomeration. An improvement in the mechanical properties of composite samples was achieved compared with the sole matrix material.

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