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Original scientific paper

EFFECT OF PARTICLE SHAPE AND SIZE OF COPPER POWDERS ON THE PROPERTIES OF SINTERED PARTS

By
Ivana Marković ,
Ivana Marković
Contact Ivana Marković

Technical Faculty in Bor, University of Belgrade, Belgrade, Serbia

Stevan Trujić ,
Stevan Trujić

TECHNICAL FACULTY IN BOR, University of Belgrade, Belgrade, Serbia

Dragan manasijević ,
Dragan manasijević

Technical Faculty in Bor, University of Belgrade, Belgrade, Serbia

Ljubiša Balanović ,
Ljubiša Balanović

Technical Faculty in Bor, University of Belgrade, Belgrade, Serbia

Uroš Stamenković ,
Uroš Stamenković

Technical Faculty in Bor, University of Belgrade, Belgrade, Serbia

Milijana Mitrović
Milijana Mitrović

Technical Faculty in Bor, University of Belgrade, Belgrade, Serbia

Abstract

The particle shape and size of the starting powders represent the most important physical properties, on which the quality of the compacts and final sintered products depends. Two types of powder were analyzed in the paper - electrolytic copper powder with a dendritic particle shape and water-atomized copper powder with an irregular particle shape. The starting powders were sieved through a sieve system with openings of 45 μm, 80 μm, and 120 μm. The characterization of the obtained fractions of both powders was performed by determining the shape and dimensions of the particles using SEM microscopy in combination with ImageJ software, and the apparent density and flow rate were determined using the Hall flowmeter funnel. Pressing of each powder fraction was done using a pressure of 600 MPa. The compacts were further sintered at 1000°C for 2 hours to obtain the final sintered parts. After sintering, their density, hardness, and electrical conductivity were determined and their microstructure was analyzed. The results indicate a great influence of the characteristics of the starting powders on the properties of the final parts obtained by the powder metallurgy route. The particle shape of the powders had a more pronounced influence compared to the particle size.

References

Chang, C.-C., & Wu, M.-R. (2017). Effects of particle shape and temperature on compaction of copper powder at micro scale. In MATEC Web of Conferences (Vol. 123, p. 00011). https://doi.org/10.1051/matecconf/201712300011
Delavari, M., Salarvand, A., Rahi, A., & Shahri, F. (n.d.). The effect of powder metallurgy process parameters on mechanical properties of micro and nano-iron powder. In International Journal of Engineering, Science and Technology (Vol. 3, Issue 9, pp. 86–94). https://doi.org/https://doi.org/10.4314/ijest.v3i9.7
Edosa, O. O., Tekweme, F. K., & Gupta, K. (2022). A Review on the Influence of Process Parameters on Powder Metallurgy Parts,. In Eng. Appl. Sci. Res (Vol. 49, Issue 3, pp. 433–443). Faculty of Engineering,  Khon Kaen University, Muang, Khon Kaen, 40002 Thailand.
International Standards Office, ISO 3923- 1:2008, Metallic Powders - Determination of Apparent Density - Part 1: Funnel Method, Geneva: ISO. 2008. (n.d.).
International Standards Office, ISO 4490:2018, Metallic Powders - Determination of Flow Rate by Means of a Calibrated Funnel (Hall Flowmeter), Geneva: ISO. 201. (n.d.).
Kumar, N., Bharti, A., Dixit, M., & Nigam, A. (2020). Effect of Powder Metallurgy Process and its Parameters on the Mechanical and Electrical Properties of Copper-Based Materials: Literature Review. In Powder Metallurgy and Metal Ceramics (Vol. 59, Issues 7–8, pp. 401–410). https://doi.org/10.1007/s11106-020-00174-1
Neikov, O. D., & Naboychenko, S. S. (2009). Handbook of Non-Ferrous Metal Powders: Technologies and Applications. Elsevier.
Sanchez, F., Bolarinl, A. M., Molera, P., Mendoza, J. E., & Ocampo, M. (2003). Relationship Between Particle Size and Manufacturing Processing and Sintered Characteristics of Iron Powders. In Rev. Latinoam. de Metal. y Mater (Issue 1).
Thummler, F., & Oberacker, R. (1993). An Introduction to Powder Metallurg. The Institute of Materials, London, UK.
Uslan, I., Usta, Y., & Saritas, S. (2006). The Effects of Powder Morphology on the Apparent Density and the Flow Rate of Metal Powders. In Powder Metallurgy World Congress & Exhibition.
Vlachos, N., & Chang, I. T. H. (2011). Investigation of flow properties of metal powders from narrow particle size distribution to polydisperse mixtures through an improved Hall-flowmeter. In Powder Technology (Vol. 205, Issues 1–3, pp. 71–80). https://doi.org/10.1016/j.powtec.2010.08.067
Yadroitsev, I. (2009). Selective laser melting: Direct manufacturing of 3D-objects by selective laser melting of metal powders.
(N.d.). https://doi.org/https://doi.org/10.4314/ijest.v3i9.7.

Citation

Funding Statement

The research presented in this paper was done with the financial support of the Ministry of Science, Technological Development and Innovations of the Republic of Serbia, with the funding of the scientific research work at the University of Belgrade, Technical Faculty in Bor, according to the contract with registration number 451-03-47/2023-01/200131.

Authors retain copyright. This work is licensed under a Creative Commons Attribution 4.0 International License. Creative Commons License

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