Preparation of Nanostructured Microporous Metal Foams through Flow Induced Electroless Deposition

Figure 14

Structure of the skin produced on the top and bottom surface of the monoliths after heat treatment. Sample characteristics: [Ni]  =  0.13 M; [P] = 1.26 M; °C, °C/min;  min followed by cooling in air. (a) General appearances of top surfaces of metal disks after heat treatment. (b) Cross-section of the crust. (c) Large pore was formed by the fusion of numerous grains. All the core material in these grains was fused to form one extended core surrounding the large pores. (d) Details of how the core material and grain skin were shared. As a result, the core can be obtained in tubular form with very high porosity.