Fig. 2.

Primary structural, mechanical and biodissolution characterization of the sintered bioceramic scaffolds with increased side-wall pore height. (A) SEM images of the top-view surface morphology (I1, II1, III1, IV1) and comparison with the surface mcirostructures before (I2, II2, III3, IV2) and after (I3, II3, III3, IV3; insets showing the face-scannning EDX spectra) soaking in SBF; (B) SEM images of the side-wall morphology of the scaffolds (The green frames showing the side-wall macropores; The crossing double-arrows displaying the pore struts with width × height of ~490 × 290 μm; The white arrow showing the height of side-wall macropores); (C) Stress-strain curves of the scaffolds and peak strength (inset); (D) Mass decrease of the scaffolds with different during immersion in Tris buffer for a long time stage; (E–G) Changes in ion concentrations in Tris buffer during immersion process.