Microstructure and properties of Cu-Al₂O₃ composites prepared by powder metallurgy
by M. Besterci, L. Kovac
International Journal of Materials and Product Technology (IJMPT), Vol. 18, No. 1/2/3, 2003

Abstract: A review starting from material science trough production technology to testing properties of the Cu-Al₂O₃ system, based on several years of research and development in materials research, is presented. Microstructural design, microstructure evaluation by different methods, first the importance of correct secondary phase particle spatial distribution evaluation, influence of microstructure on properties, and modifications of production technology, are described. Evaluations are compared to microstructural parameters of a real material: volume fraction, distribution calculations, as well as interparticle distance. Strength and plastic properties at room and higher temperatures are presented and the failure mechanism described. A simplified model of the failure mechanism is proposed. Influence of dispersed Al₂O₃ particles on recrystallisation is characterised, too.

Online publication date: Sun, 21-Sep-2003

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