To obtain antioxidative micrometer copper powder.Copper was plated with silver by substitutional reaction method. The effects of concentrations of argentamine,concentration of gelatin,and reaction temperature on reaction were studied.The powders were examined by SEM and XRD.SEM spectra is containing Ag and Cu peak which shows Cu-Ag bimetallic powder structure is surface-decorating.XRD spectra is containing Cu,Ag peak and not Cu 2O peak,the result shows the ...