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. 2024 Feb 22;15(3):302. doi: 10.3390/mi15030302

Figure 18.

Figure 18

Main sample preparation steps: (a) plain copper sample after CNC cutting; (b) production of channels; (c) coated sample using a mixture of epoxy glue and silica aerogel particles; (d) bi-conductive sample prepared through manual sanding; (e) final bi-conductive sample prepared through electrodeposition [94].