Abstract
The paper was aimed at investigation of preparation of nanocrystalline powder copper Cu - 5 vol.% CuO.Al₂O₃ by a modified mechanical-chemical method, analysis of structural characteristics and evaluation of mechanical and electrical properties of the compact material prepared by extrusion of this mixture.
The composite material prepared by the mentioned method exhibits high strength properties and good electric conductivity. The optimum use of this material is anticipated in applications which require preservation of these properties, even at elevated temperatures, for example in electrotechnical industry.

Key words
nanocrystalline powder copper Cu - 5 vol.% CuO.Al₂O₃, structural characteristics, strength properties, electric conductivity

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