TY - JOUR N2 - Eutectic copper oxides (Cu2O) crystallize during the copper solidification process in the ETP grade copper which leads to high oxygen concentrations in interdendritic spaces. It has been experimentally found that they can be regular or elongated, and their size reaches several micrometres. During the multi-cage hot rolling process, homogenization of the oxide distribution in the entire volume of the wire rod occurs. This process is carried out in the soft copper matrix. Throughout the drawing process the fragmentation of oxides transpires along with changes in the shape from angular to more oval in a degree depending on the size of the deformation (wire diameter). Microcracks, fissures and local stress fields in the reinforced copper matrix arise around the oxide particles. The article presents the results of research on the evolution of copper oxides in ingots, wire rods and wires. The results of investigations of the wires properties and the limitations of the drawing process, especially of microwires, are presented. L1 - http://journals.pan.pl/Content/113622/PDF/AMM-2019-4-53-Zasadzinska.pdf L2 - http://journals.pan.pl/Content/113622 PY - 2019 IS - No 4 EP - 1616 DO - 10.24425/amm.2019.130134 KW - Cu-ETP KW - Eutectic copper oxides (Cu2O) KW - evolution of Cu2O KW - fragmentation of oxides A1 - ZasadziƄska, M. A1 - Knych, T. PB - Institute of Metallurgy and Materials Science of Polish Academy of Sciences PB - Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences VL - vol. 64 DA - 2019.12.12 T1 - The Morphology of Eutectic Copper Oxides I (Cu2O) in The Processing of Wire Rod and Wires made from ETP Grade Copper SP - 1611 UR - http://journals.pan.pl/dlibra/publication/edition/113622 T2 - Archives of Metallurgy and Materials ER -