The Preparation of an Ultrafine Copper Powder by the Hydrogen Reduction of an Ultrafine Copper Oxide Powder and Reduction Kinetics. [PDF]
Materials (Basel)Ultrafine copper powders were prepared by the air-jet milling of copper oxide (CuO) powders and a subsequent hydrogen (H2) reduction. After milling, the particle size and grain size of CuO powders decreased, while the specific surface area and structural microstrain increased, thereby improving the reaction activity.
Li S +7 more
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Preparation of coated copper powder and its electromagnetic absorption property
Xi'an Gongcheng Daxue xuebao, 2023 In order to improve the application of copper powder in the field of microwave absorption, nickel coated copper powder and silver coated nickel coated copper composite powder were prepared by electroless plating method using copper powder as raw material.
LIU Yi +3 more
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The effect of the particle shape and structure on the flowability of electrolytic copper powder. I. Modeling of a representative powder particle [PDF]
Journal of the Serbian Chemical Society, 2003 One of the most important properties of copper powder is its flowability which depends on the shape and the structure of the powder particles. A procedure for the determination of a representative powder particle permitting the free flow of copper powder
EVICA R. IVANOVIC +5 more
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“Turbulent” electrical transport in copper powders [PDF]
Europhysics Letters (EPL), 2004 Compressed copper powder has a very large electrical resistance (1MOhm), due to the oxide layer on grains (100 micro m). We observe that its voltage-current U-I characteristics are nonlinear, and undergo an instability, from an insulating to a conductive state at relatively small applied voltages. Current through the powder is then noisy, and the noise
Falcon, Eric +2 more
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Fabrication and Characterization of Highly Pure and Fine Copper Powder by Electrodeposition [PDF]
Engineering and Technology Journal, 2005 Electrodeposition is a candidate method for producing fine and pure copper powder , which have a wide range of uses in different fields such as in applications of aerospace , atomic energy , defense , electronics , paints , plastics , cutting tools , ...
Haidar Hussein +3 more
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Metals, 2022 Nano-sized spherical copper powder has important applications in the fields of microelectronic devices, highly efficient catalysts and lubricant additives.
Haibo Wu +4 more
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Catalytic activity of sulfuric acid on the morphology of electrochemically obtained copper powder
Zaštita Materijala, 2015 The subject of the research is influence of sulfuric acid on morphology of electrochemically obtained copper powder during galvanostatic electrolysis mode.
Miomir G. Pavlović +2 more
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Effect of Particle Size and Shape on Properties of Copper – Graphite Composites [PDF]
Engineering and Technology Journal, 2015 The present work aims to study the effect of particles shape and size of copper powder on physical, mechanical properties and wear resistance of copper-13vol%graphite composites prepared by powder metallurgy technique.Spherical and dendritic copper ...
Abbas Abdulkareem Hussein +2 more
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Laser Powder Bed Fusion of Metal Coated Copper Powders
Materials, 2020 Laser powder bed fusion (L-PBF) of copper alloys with high copper content is difficult due to the high infrared reflectivity and thermal conductivity of these alloys. In this study a simple and scalable method for coating copper powder with tin and nickel is presented, and suggested as an alloying strategy for such alloys.
Viktor Lindström +6 more
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Impact of the vibrocathode on the patterns and properties of electrolytic copper powders
Advanced Engineering Research, 2015 Methods for obtaining ultrafine copper powders from the etching waste of the printed circuit boards are described. Modes of obtaining copper powder in the anode-synthesized chloride-ammonium electrolyte using vibrocathode that allows intensifying the ...
Marina V Korchagina +2 more
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