The effect of particle structure on apparent density of electrolytic copper powder

Pavlović, Marko; Pavlović, Lj.J.; Ivanović, Evica R.; Radmilović, V.; Popov, Konstantin

doi:10.2298/jsc0112923p

Cited by 34 publications

(39 citation statements)

References 4 publications

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“…99.33% of the theoretical density was achieved with the composite made of 10 µm, spherical Cu particles. On the other hand, particles having dendritic shape should have less density (the more regular the shape, the denser the powder [24]) compared to that of spherical structure.…”

Section: Evaluation Of Compositesmentioning

confidence: 99%

Effect of size and shape of metal particles to improve hardness and electrical properties of carbon nanotube reinforced copper and copper alloy composites

Uddin

Mahmud

Wolf

et al. 2010

Composites Science and Technology

210

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This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. AbstractUtilizing the extra-ordinary properties of carbon nanotube (CNT) in metal matrix composite (MMC) for macroscopic applications is still a big challenge for science and technology. Very few successful attempts have been made for commercial applications due to the difficulties incorporating CNTs in metals with up-scalable processes. CNT reinforced copper and copper alloy (bronze) composites have been fabricated by well established hot-press sintering method of powder metallurgy. The parameters of CNTmetal powder mixing and hot-press sintering have been optimized and the matrix materials of the mixed powders and composites have been evaluated. However, the effect of shape and size of metal particles as well as selection of carbon nanotubes has significant influence on the mechanical and electrical properties of the composites. The hardness of copper matrix composite has improved up to 47% compared to that of pure copper, while the electrical conductivity of bronze composite has improved up to 20% compared to that of the pure alloy. Thus carbon nanotube can improve the mechanical properties of highly-conductive low-strength copper metals, whereas in lowconductivity high-strength copper alloys the electrical conductivity can be improved.

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Section: Evaluation Of Compositesmentioning

confidence: 99%

Effect of size and shape of metal particles to improve hardness and electrical properties of carbon nanotube reinforced copper and copper alloy composites

Uddin

Mahmud

Wolf

et al. 2010

Composites Science and Technology

210

View full text Add to dashboard Cite

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“…The distance between anodes was 60 mm from center of each anode. The electrodes in the cell were parallel with each other [12,14].…”

Section: Methodsmentioning

confidence: 99%

“…These factors influence an increase of powder particles dispersity and their more dendritic structure. It leads to a reduction of particle size and apparent density and to enlargement of specific area [12].…”

Section: Size and Shapementioning

confidence: 99%

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Characterization of copper powder particles obtained by electrodeposition as function of different current densities

Maksimović

Pavlović²,

Pavlović³

et al. 2009

J Appl Electrochem

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Technological properties of powders depend on their granulometry and morphology. Very often one method is inadequate for characterization of powder particles. This article studied different methods intended for clear definition of the copper powder granulometric and morphological properties. Quantitative microstructural analysis, sieve analysis, and XRD analysis of copper powder as well as scanning electron microscopy analysis of the copper powder particles were performed. It was determined that selected stereological parameters, such as area, perimeter, and shape factor (roundness) show a linear decreasing dependence of current density, while the morphology was changed from massive to branched 3D dendrites. XRD analysis indicated that the crystallite sizes shows a linearly increasing dependence on current density. The shape factor could be a useful parameter for description of powder morphologies deposited by different regimes.

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“…The 0.1 mol NaOH solution was then used for neutralizing any remaining sulfuric acid. In addition, the 0.1 mol solution of benzoic acid was introduced to purify the remaining acid to prevent grain oxidation during the washing operation [22][23]. After washing, all of the samples were dried at 110-120°C under nitrogen gas atmosphere and milled by a high-energy mill to introduce agglomeration.…”

Section: Rw Conditionmentioning

confidence: 99%

Comparison of effective parameters for copper powder production via electrorefining and electrowinning cells and improvement using DOE methods

Akbarzadeh

Shakib

2011

Int J Miner Metall Mater

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The influences of cupric ion concentration (5-35 g/L), current density (500-2000 A/m 2 ), circulation rate of the electrolyte solution (15-120 mL/min), and temperature (25-60°C) on the physical and chemical properties of copper powders obtained in electrolysis cells were investigated. Two industrial processes, electrorefining (ER) cells with a synthetic electrolyte and electrowinning (EW) cells with an original solution of copper mineral leaching, were utilized to produce copper powders. Finally, the statistical full factorial method of design of experiments (DOE) was employed to investigate the interaction or the main effects of processes. The results show that increasing the copper concentration and temperature can increase the grain size, apparent density, and electrical energy consumption. On the other hand, increasing the current density and circulation rate of the electrolyte can decrease them. This production process is optimized via DOE to control the interactive and main effects to produce copper powders with favorable properties.

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The effect of particle structure on apparent density of electrolytic copper powder

Cited by 34 publications

References 4 publications

Effect of size and shape of metal particles to improve hardness and electrical properties of carbon nanotube reinforced copper and copper alloy composites

Effect of size and shape of metal particles to improve hardness and electrical properties of carbon nanotube reinforced copper and copper alloy composites

Characterization of copper powder particles obtained by electrodeposition as function of different current densities

Comparison of effective parameters for copper powder production via electrorefining and electrowinning cells and improvement using DOE methods

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