Here, we demonstrate that this challenge can be overcome by architecting a gradient structure featuring a surface layer of nacre-like nanolaminates followed by multi-variant twinned structure in pure titanium. The polarized accommodation of highly regulated grain boundaries in the nanolaminated layer to ...
Compared to a homogeneous CG structure (with an average grain size of 35.4 ± 8.5 μm), the tensile strength of the surface-nanolaminated gradient Ti is improved by ≈100 MPa with no sacrifice in ductility (Supplementary Fig.2a). As shown in Fig.2a, for the same fatigue life,...
4b). In Griffith’s theory of brittle fracture, the energy dissipated by radial cracks in glass layers is \({E}_{dis}=2n\varGamma h{r}_{f}\), where \(\varGamma\)is the material fracture (surface) energy, h is the thickness, \({r}_{f}\) is the length of crack propagation ...
Inspired by nacre's sophisticated "brick-and-mortar" structure, multilayered polyether amine (PEA)/graphene oxide (GO) hybrid building blocks were incorporated onto the surface of carbon fiber via Layer-by-Layer (LbL) assembly to strengthen and toughen the interphase of composites. Impressive ...
Surface functionalizationSilane couplingMechanical characterizationAlumina platelet reinforced epoxy matrix composites with an architecture resembling to natural nacre were fabricated by a hybrid conventional method called Hot-press Assisted Slip Casting process (HASC). Correlation between processing parameters, ...
In order to get a closed-form solution for BDTS model, a special loading case of equal curvature is considered in this section, which means the nacre-like structure is constrained to a cylindrical surface. In this case, the derivative of deflection is represented as−dwdx=βm(xm)=xmR=xR...
(1), and it has poor impact resistance. A strategyto improve strength and impact resistance istempering, in which compressive stresses arecreatedatthesurfaceofthecomponenttohindercrack initiation,increasingstrength to twoto fivetimes that of annealed glass (2). However, frac-turing tempered glass ...
Composites reinforced via mechanical interlocking of surface-roughened microplatelets within ductile and brittle matrices Load-bearing reinforcing elements in a continuous matrix allow for improved mechanical properties and can reduce the weight of structural composites. As th... R Libanori,D Carnelli,N ...
2.2. Fabrication of Nacre-Like HA/Polymer Composites The slurry was poured into the PDMS molds with a slope angle of 10◦ and covered with silicone to obtain a flat surface at the bottom of the sample. Freezing started at the top line of the copper wedge and ended at the other side ...
4k 3D animation of wavy surface forms ripples like in fluid surface and the folds like in tissue. White pearly silky fabric forms beautiful folds in the air in slow motion. Animated texture. Author credit line ID 158603389 © Aleksei Burakov | Dre...