Figure 3 | Scientific Reports

Figure 3

From: Guided cracking of electrodes by stretching prism-patterned membrane electrode assemblies for high-performance fuel cells

Figure 3

Morphological features of the generated guided cracks: (a–d) SEM images of the cracks generated after applying strains (S) of ~0.5 and ~1.0 to the prism-patterned MEAs with pitches of 20 μm and 50 μm: (a) P-20 MEA with S ≈ 0.5, (b) P-20 MEA with S ≈ 1.0, (c) P-50 MEA with S ≈ 0.5, and (d) P-50 MEA with S ≈ 1.0. (e,f) Simulations of the stress distributions on the prism-patterned MEAs with pitches of 20 μm (e) and 50 μm (f).

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