Fig. 1 ( a ) The textile architecture of the 3D textile SiC/SiC CMCs and ( b ) Z -fiber is introduced to suture the fabric up and down along the thickness direction and perpendicular to the warp and weft yarn More

Fig. 2 Microstructure of the 3D textile SiC/SiC CMCs observed by 3D X-ray tomography visualization. Dark and light represent the weft fibers and warp fibers, respectively. More

Fig. 3 The load configuration of the three-point bend flexure experiments; the region represented by the dashed line is the region of interest for DIC analysis. Here, the supporting span, L S , is 50 mm, and both the load nose radius, r L , and the support radius, r S , are 2 mm. More

Fig. 4 ( a ) SEM micrograph of a polished SiC/SiC composite (failure specimen) cross section, ( b ) fiber debonding and crack propagation in fracture surfaces of the compress side, ( c ) fiber pull-out in fracture surfaces of the tensile side, and ( d ) fracture origins in partially fibers associa... More

Fig. 5 Schematic illustration of the damage sequence of the SiC/SiC CMCs under three-point flexural loading: ( a ) crack nucleation, ( b ) crack propagation at the highest shear location, and ( c ) crack progressive propagation driven by shear stress and the needle cracks present at the highest be... More

Fig. 6 Stress–strain curves of SiC/SiC CMC specimens tested using a three-point bend configuration at room temperature. Distinction between the different domains of the curves, namely, the first nonlinear part and the second quasi-linear part More

Fig. 7 Displacement fields of the specimen in the XY plane under different loadings, generated by DIC. The bending center is marked by dotted lines, which is the location of the loading pin. More

Fig. 8 Evolution of the flexural strain field ε x x with increasing applied stress. The dotted lines represent the location of the loading pin. More

Fig. 9 Normalized strains ( ε x x ( I / M ) ) along the direction of thickness ( Y ) More

Fig. 10 The relationship between E and the applied stress and similar results were reported by Liu et al. [ 29 ] for 3D four-step braided SiC/SiC CMCs More

Fig. 11 Flexural loading-induced damage variation as a function of the applied stress for the SiC/SiC CMCs More

Fig. 12 Flexural loading-induced damage evolution with the energy density release rate Y for the SiC/SiC CMCs under flexural loading More

Fig. 1 The initial microstructure of the received titanium alloy More

Fig. 2 The charts of the experimental process: ( a ) specimen dimensions, ( b ) temperature control curve, ( c ) high-temperature test machines, ( d ) specimens before and after testing, and ( e ) metallographic observation equipment of XRD and EBSD More

Fig. 3 The XRD data for the received material More

Fig. 4 The initial microstructure of α -phase by EBSD Z -axis map: ( a ) inverse pole figure and ( b ) pole figure More