Purpose: The aim of this paper is to present a modern manufacturing method of production
and compare the thermal, mechanical, properties of composite materials with aluminium
alloy matrix reinforced by Al2O3 particles.
Design/methodology/approach: The material for investigation was manufactured by the
method of powder metallurgy (consolidation, pressing, hot concurrent extrusion of powder
mixtures of aluminium EN AW-AlCu4Mg1 (A) and ceramic particles Al2O3). The amount of the
added powder was in the range of 5 mass.%, 10 mass.% and 15 mass.%.
Findings: The received results concerning the enhancement of hardness, which show
the possibility of obtaining the MMC composite materials with required microstructure,
influencing the properties of the new elaborated composite materials components.
Concerning the thermal properties, especially the linear thermal expansion coefficient was
measured, as well as the dilatometric change of the sample length was analysed.
Practical implications: Concerning practical implications it can be stated that the tested
composite materials can be applied among others in the transportation industry, but it
requires additional research.
Originality/value: The received results show the possibility of obtaining new composite
materials with controlled and required microstructure with possible practical implications.