Friction and wear properties of copper-based composites reinforced with micro- and nano-sized Al2O3 particles
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2014
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Publishing House Petroleum-Gas University of Ploiesti
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Copper-based composites with hard particles are widely applied in electrical sliding contacts such as those in railway overhead current collection system, lead frame in large scale integrated-circuit, welding electrodes, transfer switches and electrical contact material. Powder metallurgy is the most applicable technology way of producing the copper-based composites, especially when the matrix material is reinforced with second phase particles. Two copper-based composites reinforced with micro-sized Al2O3 particles (app. 750 nm in size) and nano-sized Al2O3 particles (less than 100 nm in size), and produced by powder metallurgy technology, were compared with a Cu-Cr-Zr alloy produced by casting technique. The tribological tests were carried-out on ball-on-disc nanotribometer, under the high-load (1 N), low-speed (8 mm/s) dry sliding condition. The addition of micro-sized Al2O3 particles did not showed so beneficiary effect, since this composite had the lowest hardness and wear resistan...ce, and at the same time, the highest coefficient of friction. On the other hand the addition of nano-sized Al2O3 particles increased considerably hardness of composite and improved the wear resistance to a significant extent, and also reduces the coefficient of friction.
Keywords:
copper-based composites / Al2O3 particles / dry sliding / friction / wearSource:
Proceedings of the 8th International Conference on Tribology – BALKANTRIB '14, 2014, 357-364Funding / projects:
- The effect of nano- and microconstituents on the synthesis and characteristics of novel composite materials with metal matrix (RS-MESTD-Basic Research (BR or ON)-172005)
- Investigation and Optimization of the Technological and Functional Performance of the Ventilation Mill in the Thermal Power Plant Kostolac B (RS-MESTD-Technological Development (TD or TR)-34028)
- Development of the tribological micro/nano two component and hybrid selflubricating composites (RS-MESTD-Technological Development (TD or TR)-35021)
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Mašinski fakultetTY - CONF AU - Vencl, Aleksandar AU - Rajkovic, Viseslava AU - Zivic, Fatima PY - 2014 UR - https://machinery.mas.bg.ac.rs/handle/123456789/4342 AB - Copper-based composites with hard particles are widely applied in electrical sliding contacts such as those in railway overhead current collection system, lead frame in large scale integrated-circuit, welding electrodes, transfer switches and electrical contact material. Powder metallurgy is the most applicable technology way of producing the copper-based composites, especially when the matrix material is reinforced with second phase particles. Two copper-based composites reinforced with micro-sized Al2O3 particles (app. 750 nm in size) and nano-sized Al2O3 particles (less than 100 nm in size), and produced by powder metallurgy technology, were compared with a Cu-Cr-Zr alloy produced by casting technique. The tribological tests were carried-out on ball-on-disc nanotribometer, under the high-load (1 N), low-speed (8 mm/s) dry sliding condition. The addition of micro-sized Al2O3 particles did not showed so beneficiary effect, since this composite had the lowest hardness and wear resistance, and at the same time, the highest coefficient of friction. On the other hand the addition of nano-sized Al2O3 particles increased considerably hardness of composite and improved the wear resistance to a significant extent, and also reduces the coefficient of friction. C3 - Proceedings of the 8th International Conference on Tribology – BALKANTRIB '14 T1 - Friction and wear properties of copper-based composites reinforced with micro- and nano-sized Al2O3 particles EP - 364 SP - 357 UR - https://hdl.handle.net/21.15107/rcub_machinery_4342 ER -
@conference{ author = "Vencl, Aleksandar and Rajkovic, Viseslava and Zivic, Fatima", year = "2014", abstract = "Copper-based composites with hard particles are widely applied in electrical sliding contacts such as those in railway overhead current collection system, lead frame in large scale integrated-circuit, welding electrodes, transfer switches and electrical contact material. Powder metallurgy is the most applicable technology way of producing the copper-based composites, especially when the matrix material is reinforced with second phase particles. Two copper-based composites reinforced with micro-sized Al2O3 particles (app. 750 nm in size) and nano-sized Al2O3 particles (less than 100 nm in size), and produced by powder metallurgy technology, were compared with a Cu-Cr-Zr alloy produced by casting technique. The tribological tests were carried-out on ball-on-disc nanotribometer, under the high-load (1 N), low-speed (8 mm/s) dry sliding condition. The addition of micro-sized Al2O3 particles did not showed so beneficiary effect, since this composite had the lowest hardness and wear resistance, and at the same time, the highest coefficient of friction. On the other hand the addition of nano-sized Al2O3 particles increased considerably hardness of composite and improved the wear resistance to a significant extent, and also reduces the coefficient of friction.", journal = "Proceedings of the 8th International Conference on Tribology – BALKANTRIB '14", title = "Friction and wear properties of copper-based composites reinforced with micro- and nano-sized Al2O3 particles", pages = "364-357", url = "https://hdl.handle.net/21.15107/rcub_machinery_4342" }
Vencl, A., Rajkovic, V.,& Zivic, F.. (2014). Friction and wear properties of copper-based composites reinforced with micro- and nano-sized Al2O3 particles. in Proceedings of the 8th International Conference on Tribology – BALKANTRIB '14, 357-364. https://hdl.handle.net/21.15107/rcub_machinery_4342
Vencl A, Rajkovic V, Zivic F. Friction and wear properties of copper-based composites reinforced with micro- and nano-sized Al2O3 particles. in Proceedings of the 8th International Conference on Tribology – BALKANTRIB '14. 2014;:357-364. https://hdl.handle.net/21.15107/rcub_machinery_4342 .
Vencl, Aleksandar, Rajkovic, Viseslava, Zivic, Fatima, "Friction and wear properties of copper-based composites reinforced with micro- and nano-sized Al2O3 particles" in Proceedings of the 8th International Conference on Tribology – BALKANTRIB '14 (2014):357-364, https://hdl.handle.net/21.15107/rcub_machinery_4342 .