Fig. 1: Deformation behavior of the Al2O3-GAP eutectic micropillars.
a Stress–strain curves obtained from the compression test on Pillars e1, e15, and E3. Pillar e1, which showed brittle fracture, is colored blue, while Pillar e15 and E3, which showed plastic deformation, are colored red. The arrows indicate the yield points. SEM images of (b) Pillar e1 and (c) Pillar e15 after compression. d SEM image of Pillar E3 before (left) and after (right) the compression test. Outline of the pillar is traced by white dashed line. e The relationship between θ and the fracture stress of the micropillars showing brittle fracture (plotted by blue triangles) and σ0.1 of the micropillars that display plastic deformation (plotted by red circles or squares). Schematics of the eutectic micropillar at θ = 0°, 45° and 90° are depicted at the bottom. Source data are provided as a Source Data file.
