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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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Selective Laser Sintering of Binary Metallic Powder [PDF]
, 1990 A selective laser sintering technique has been used to process metal powders and powder blends. Precursor powders include copper, tin, a 70Pb-30Sn solder and their blends.
Bourell, D.L., Manriquez-Frayre, J.A.
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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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Direct Metal Laser Fabrication of Cu Slabs from Powder Precursor: Surface Depth of Melt and Furnace Temperature Issues [PDF]
, 2006 A DMLF processing unit based on a raster-scanned 80 W CO2 laser beam has been developed to process single layers of metallic powder precursor. The process chamber provides atmosphere control (high vacuum and inert gas refill) besides temperature ...
Larraín, Tomás +3 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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Preparation and properties of carbon nanotubes electroless copper plating composite paste
Xi'an Gongcheng Daxue xuebao, 2021 In order to improve the interfacial wettability of carbon nanotubes (CNTs) and Cu matrix, and to improve the dispersity and binding force between CNTs and Cu matrix, the copper composite paste with excellent electrical conductivity was prepared ...
Yufan WANG +7 more
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Electrodeposition of Copper Powder
Transactions of The Electrochemical Society, 1944 A new type of copper powder has been produced. Powder production is made a part of the process of electrolytic refining of copper. In a sense, therefore, the powder is a by‐product of the refining operation. Great potential economy is possible, but can be realized only with large‐scale production of this powder which in turn awaits development of uses ...
W. H. Osborn, S. B. Tuwiner
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Исследование ультрадисперсных оксидов меди, полученных плазмодинамическим методом [PDF]
, 2011 The synthesis of copper oxides has a great importance due to the fact these materials are widely used in superconductors manufacturing. It’s known that properties of materials in nanodispersed conditions are improved.
Ansari, Junaid +12 more
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Journal of Materials Research and Technology, 2023 Cu-1.3 wt%Ni-1.0 wt%Co-0.9 wt%Si-0.1 wt%Mg alloy strip with 10 mm in thickness produced by heating-cooling combined mold (HCCM) horizontal continuous casting was cold rolled.
Jinhui Hu +6 more
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Sintering kinetics of the powder during fields-activated micro-forming and sintering (Micro-FAST) of copper micro-gears [PDF]
, 2014 Forming of micro-components from powder with fields-activated sintering technology (FAST) renders different forming and sintering mechanisms, comparing to that occurring during the forming of macro-sized components with a similar technology. Establishing
Huang, Kunlan, Qin, Yi, Yang, Yi
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