Kinetics of codeposition nanocrystalline Ni-Cu alloys with Al particles

COLL 443

Xinwei Cui, xinweic@ualberta.ca and Weixing Chen. Department of Chemical and Materials Engineering, University of Alberta, 114 St - 89 Ave, NW, Edmonton, AB T6G 2G6, Canada
Ni/Cu-Al nanocrystalline alloy matrix/metal particle composite coatings have been direct-current (DC) electroplated via sediment codeposition (SCD) technique. Al content could be obtained as high as 31 vol% in the nanocrystalline alloy matrix. A theoretical model of codeposition has been developed to provide a more complete insight to the mechanism of metal particle codeposition than Guglielmi's model. The model gives a more general expression relating volume percent of embedded particles to current density. Hydrodynamic effects have also been considered in this model.
 

Electrochemistry-Enabled Nano S&T
9:00 AM-11:20 AM, Thursday, April 10, 2008 Morial Convention Center -- Rm. 229, Oral

Division of Colloid & Surface Chemistry

The 235th ACS National Meeting, New Orleans, LA, April 6-10, 2008