naa a22 4500 510822045 CHVBK 20180411083537.0 cr unu---uuuuu 180411e20130601xx s 000 0 eng 10.1007/s12541-013-0116-9 doi (NATIONALLICENCE)springer-10.1007/s12541-013-0116-9 Electrochemical deposition of metal ions as a low energy alternative to conventional methods [Elektronische Daten] [Abhimanyu Bhat, David Bourell] Electrochemical infiltration of copper in porous graphite and silicon carbide is reported. A theoretical model based on Butler-Volmer equation was made to predict reaction rates across the porous preforms. Electrolytic infiltration was carried out on laser sintered graphite and silicon carbide parts using a flow through set up. The operating parameters of the laser sintering process were changed to increase porosity. Results of infiltration experiments were compared with electrolytic infiltration of graphite felt under same conditions. Triton X-100 was used as a wetting agent to improve the wettability of the porous parts with the electrolyte. It was found that a high conductivity electrolyte is required for uniform distribution of copper inside the pore network of the porous graphite and silicon carbide. Electrodeposition was carried out at small currents to avoid high potential drop and hydrogen evolution reaction during the deposition process. The electrolyte was flowed through the porous parts to achieve steady state conditions. The electrolytic infiltration process resulted in reduction of porosity fraction in graphite felt by 26% and 14% in 84% porous graphite. This study shows that electrochemical deposition of metals in the pore network of a highly porous material is possible. Korean Society for Precision Engineering and Springer-Verlag Berlin Heidelberg, 2013 Electrodeposition nationallicence Laser Sintering nationallicence Infiltration nationallicence x : distance into the porous part in the direction of flow nationallicence η : overpotential in the electrolyte nationallicence j(x) : Reaction current density as a function of x nationallicence κ : electrical conductivity of the electrolyte nationallicence σ : electrical conductivity of porous part nationallicence ɛ : porosity volume fraction nationallicence µ : dynamic viscosity of the electrolyte nationallicence L : thickness of porous part nationallicence θ : contact angle of electrolyte with graphite nationallicence Bhat Abhimanyu Laboratory for Freeform Fabrication, The University of Texas at Austin, University Station, MC C2200, 78712, Austin, Texas, USA aut Bourell David Laboratory for Freeform Fabrication, The University of Texas at Austin, University Station, MC C2200, 78712, Austin, Texas, USA aut International Journal of Precision Engineering and Manufacturing Korean Society for Precision Engineering 14/6(2013-06-01), 881-889 2234-7593 14:6<881 2013 14 12541 https://doi.org/10.1007/s12541-013-0116-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s12541-013-0116-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Bhat Abhimanyu Laboratory for Freeform Fabrication, The University of Texas at Austin, University Station, MC C2200, 78712, Austin, Texas, USA aut NATIONALLICENCE 700 1- Bourell David Laboratory for Freeform Fabrication, The University of Texas at Austin, University Station, MC C2200, 78712, Austin, Texas, USA aut NATIONALLICENCE 773 0- International Journal of Precision Engineering and Manufacturing Korean Society for Precision Engineering 14/6(2013-06-01), 881-889 2234-7593 14:6<881 2013 14 12541 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer