Properties of dispersion-hardened copper made by internal oxidation of prealloyed copper powder containing 2.5wt. % Al
Апстракт
Prealloyed copper powder containing 2.5wt. %Al was processed in a planetary ball mill to evaluate matrix hardening due to formation of Al2O3 particles in situ by internal oxidation. After milling, the powders were heat treated in hydrogen in order to reduce copper oxide formed on particle surfaces during milling. The compacts were made by hot pressing. The examinations show that the compacts possess a good combination of high strength and high electrical conductivities. After 5h of milling the microhardness of the prealloyed compact was 3 to 4 times higher than that of the as-received electrolytic copper compacted under the same conditions, while the conductivity was 68% IACS. Also, it was found that the prealloyed compacts preserved much of the hardness after exposure to high temperature in inert atmospheres.
Кључне речи:
copper matrix hardening / dispersion-hardened copper / high energy ball milling / internal oxidation in airИзвор:
Current Research in Advanced Materials and Processes, 2005, 494, 493-497Издавач:
- Trans Tech Publications Ltd, Durnten-Zurich
Институција/група
Tehnološko-metalurški fakultetTY - JOUR AU - Rajković, Višeslava M. AU - Božić, Dušan AU - Vracarić, D AU - Romhanji, Endre PY - 2005 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/852 AB - Prealloyed copper powder containing 2.5wt. %Al was processed in a planetary ball mill to evaluate matrix hardening due to formation of Al2O3 particles in situ by internal oxidation. After milling, the powders were heat treated in hydrogen in order to reduce copper oxide formed on particle surfaces during milling. The compacts were made by hot pressing. The examinations show that the compacts possess a good combination of high strength and high electrical conductivities. After 5h of milling the microhardness of the prealloyed compact was 3 to 4 times higher than that of the as-received electrolytic copper compacted under the same conditions, while the conductivity was 68% IACS. Also, it was found that the prealloyed compacts preserved much of the hardness after exposure to high temperature in inert atmospheres. PB - Trans Tech Publications Ltd, Durnten-Zurich T2 - Current Research in Advanced Materials and Processes T1 - Properties of dispersion-hardened copper made by internal oxidation of prealloyed copper powder containing 2.5wt. % Al EP - 497 SP - 493 VL - 494 DO - 10.4028/www.scientific.net/MSF.494.493 ER -
@article{ author = "Rajković, Višeslava M. and Božić, Dušan and Vracarić, D and Romhanji, Endre", year = "2005", abstract = "Prealloyed copper powder containing 2.5wt. %Al was processed in a planetary ball mill to evaluate matrix hardening due to formation of Al2O3 particles in situ by internal oxidation. After milling, the powders were heat treated in hydrogen in order to reduce copper oxide formed on particle surfaces during milling. The compacts were made by hot pressing. The examinations show that the compacts possess a good combination of high strength and high electrical conductivities. After 5h of milling the microhardness of the prealloyed compact was 3 to 4 times higher than that of the as-received electrolytic copper compacted under the same conditions, while the conductivity was 68% IACS. Also, it was found that the prealloyed compacts preserved much of the hardness after exposure to high temperature in inert atmospheres.", publisher = "Trans Tech Publications Ltd, Durnten-Zurich", journal = "Current Research in Advanced Materials and Processes", title = "Properties of dispersion-hardened copper made by internal oxidation of prealloyed copper powder containing 2.5wt. % Al", pages = "497-493", volume = "494", doi = "10.4028/www.scientific.net/MSF.494.493" }
Rajković, V. M., Božić, D., Vracarić, D.,& Romhanji, E.. (2005). Properties of dispersion-hardened copper made by internal oxidation of prealloyed copper powder containing 2.5wt. % Al. in Current Research in Advanced Materials and Processes Trans Tech Publications Ltd, Durnten-Zurich., 494, 493-497. https://doi.org/10.4028/www.scientific.net/MSF.494.493
Rajković VM, Božić D, Vracarić D, Romhanji E. Properties of dispersion-hardened copper made by internal oxidation of prealloyed copper powder containing 2.5wt. % Al. in Current Research in Advanced Materials and Processes. 2005;494:493-497. doi:10.4028/www.scientific.net/MSF.494.493 .
Rajković, Višeslava M., Božić, Dušan, Vracarić, D, Romhanji, Endre, "Properties of dispersion-hardened copper made by internal oxidation of prealloyed copper powder containing 2.5wt. % Al" in Current Research in Advanced Materials and Processes, 494 (2005):493-497, https://doi.org/10.4028/www.scientific.net/MSF.494.493 . .