TECHNOLOGICAL ASPECTS OF THE SYNTHESIS OF METAL MATRIX COMPOSITES REINFORCED WITH CENOSPHERES

The paper presents a method of casting metal matrix composite materials based on light alloys reinforced with cenospheres. The cenospheres, which are product of fly ash processing by flotation, were formed into the porous ceramic shaped elements and subjected to pressure infiltration with liquid metal on a specially designed hydraulic press. Studies have shown that proper selection of process parameters, such as squeeze pressure, temperature of alloy and ceramic preform is necessary to obtain satisfactory properties of the ready composite products.

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