The preparation of dendrite- and needle-shaped alloy particles coated on copper powders by polyvinylpyrrolidone in displacement reaction and thermal conductivity on composites' characterization

Fig. (a) shows that the dendritic-shaped particles coated on the surface of copper powder by a displacement reaction, Fig. (b) shows that the EDX spectra exhibit the characteristic peaks that correspond to the Cu and Ag atoms present in the dendritic-shaped particles formed.