Influence of the Shape of Copper Powder Particles on the Crystal Structure and Some Decisive Characteristics of the Metal Powders
Authors
Avramović, LjiljanaMaksimović, Vesna M.

Baščarević, Zvezdana

Ignjatović, Nenad

Bugarin, Mile
Marković, Radmila

Nikolić, Nebojša D.
Article (Published version)
Metadata
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Three different forms of Cu powder particles obtained by either galvanostatic electrolysis or a non-electrolytic method were analyzed by a scanning electron microscope (SEM), X-ray diffraction (XRD) and particle size distribution (PSD). Electrolytic procedures were performed under different hydrogen evolution conditions, leading to the formation of either 3D branched dendrites or disperse cauliflower-like particles. The third type of particles were compact agglomerates of the Cu grains, whose structural characteristics indicated that they were formed by a non-electrolytic method. Unlike the sharp tips that characterize the usual form of Cu dendrites, the ends of both the trunk and branches were globules in the formed dendrites, indicating that a novel type of Cu dendrites was formed in this investigation. Although the macro structures of the particles were extremely varied, they had very similar micro structures because they were constructed by spherical grains. The Cu crystallites wer...e randomly oriented in the dendrites and compact agglomerates of the Cu grains, while the disperse cauliflower-like particles showed (220) and (311) preferred orientation. This indicates that the applied current density affects not only the morphology of the particles, but also their crystal structure. The best performance, defined by the largest specific surface area and the smallest particle size, was by the galvanostatically produced powder consisting of disperse cauliflower-like particles.
Keywords:
copper / electrolysis / hydrogen / powder / PSD / SEM / XRDSource:
Metals, 2019, 9, 1, 56-Publisher:
- Basel : MDPI
Funding / projects:
DOI: 10.3390/met9010056
ISSN: 2075-4701
WoS: 000459738500056
Scopus: 2-s2.0-85060198478
Institution/Community
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - JOUR AU - Avramović, Ljiljana AU - Maksimović, Vesna M. AU - Baščarević, Zvezdana AU - Ignjatović, Nenad AU - Bugarin, Mile AU - Marković, Radmila AU - Nikolić, Nebojša D. PY - 2019 UR - https://www.mdpi.com/2075-4701/9/1/56 UR - https://dais.sanu.ac.rs/123456789/4770 AB - Three different forms of Cu powder particles obtained by either galvanostatic electrolysis or a non-electrolytic method were analyzed by a scanning electron microscope (SEM), X-ray diffraction (XRD) and particle size distribution (PSD). Electrolytic procedures were performed under different hydrogen evolution conditions, leading to the formation of either 3D branched dendrites or disperse cauliflower-like particles. The third type of particles were compact agglomerates of the Cu grains, whose structural characteristics indicated that they were formed by a non-electrolytic method. Unlike the sharp tips that characterize the usual form of Cu dendrites, the ends of both the trunk and branches were globules in the formed dendrites, indicating that a novel type of Cu dendrites was formed in this investigation. Although the macro structures of the particles were extremely varied, they had very similar micro structures because they were constructed by spherical grains. The Cu crystallites were randomly oriented in the dendrites and compact agglomerates of the Cu grains, while the disperse cauliflower-like particles showed (220) and (311) preferred orientation. This indicates that the applied current density affects not only the morphology of the particles, but also their crystal structure. The best performance, defined by the largest specific surface area and the smallest particle size, was by the galvanostatically produced powder consisting of disperse cauliflower-like particles. PB - Basel : MDPI T2 - Metals T1 - Influence of the Shape of Copper Powder Particles on the Crystal Structure and Some Decisive Characteristics of the Metal Powders SP - 56 VL - 9 IS - 1 DO - 10.3390/met9010056 UR - https://hdl.handle.net/21.15107/rcub_dais_4770 ER -
@article{ author = "Avramović, Ljiljana and Maksimović, Vesna M. and Baščarević, Zvezdana and Ignjatović, Nenad and Bugarin, Mile and Marković, Radmila and Nikolić, Nebojša D.", year = "2019", abstract = "Three different forms of Cu powder particles obtained by either galvanostatic electrolysis or a non-electrolytic method were analyzed by a scanning electron microscope (SEM), X-ray diffraction (XRD) and particle size distribution (PSD). Electrolytic procedures were performed under different hydrogen evolution conditions, leading to the formation of either 3D branched dendrites or disperse cauliflower-like particles. The third type of particles were compact agglomerates of the Cu grains, whose structural characteristics indicated that they were formed by a non-electrolytic method. Unlike the sharp tips that characterize the usual form of Cu dendrites, the ends of both the trunk and branches were globules in the formed dendrites, indicating that a novel type of Cu dendrites was formed in this investigation. Although the macro structures of the particles were extremely varied, they had very similar micro structures because they were constructed by spherical grains. The Cu crystallites were randomly oriented in the dendrites and compact agglomerates of the Cu grains, while the disperse cauliflower-like particles showed (220) and (311) preferred orientation. This indicates that the applied current density affects not only the morphology of the particles, but also their crystal structure. The best performance, defined by the largest specific surface area and the smallest particle size, was by the galvanostatically produced powder consisting of disperse cauliflower-like particles.", publisher = "Basel : MDPI", journal = "Metals", title = "Influence of the Shape of Copper Powder Particles on the Crystal Structure and Some Decisive Characteristics of the Metal Powders", pages = "56", volume = "9", number = "1", doi = "10.3390/met9010056", url = "https://hdl.handle.net/21.15107/rcub_dais_4770" }
Avramović, L., Maksimović, V. M., Baščarević, Z., Ignjatović, N., Bugarin, M., Marković, R.,& Nikolić, N. D.. (2019). Influence of the Shape of Copper Powder Particles on the Crystal Structure and Some Decisive Characteristics of the Metal Powders. in Metals Basel : MDPI., 9(1), 56. https://doi.org/10.3390/met9010056 https://hdl.handle.net/21.15107/rcub_dais_4770
Avramović L, Maksimović VM, Baščarević Z, Ignjatović N, Bugarin M, Marković R, Nikolić ND. Influence of the Shape of Copper Powder Particles on the Crystal Structure and Some Decisive Characteristics of the Metal Powders. in Metals. 2019;9(1):56. doi:10.3390/met9010056 https://hdl.handle.net/21.15107/rcub_dais_4770 .
Avramović, Ljiljana, Maksimović, Vesna M., Baščarević, Zvezdana, Ignjatović, Nenad, Bugarin, Mile, Marković, Radmila, Nikolić, Nebojša D., "Influence of the Shape of Copper Powder Particles on the Crystal Structure and Some Decisive Characteristics of the Metal Powders" in Metals, 9, no. 1 (2019):56, https://doi.org/10.3390/met9010056 ., https://hdl.handle.net/21.15107/rcub_dais_4770 .