Xinjiang Zhang

Super‐Stretchable Spring‐Like Carbon Nanotube Ropes

Spring-like carbon nanotube ropes consisting of perfectly arranged loops are fabricated by spinning single-walled nanotube films, and can sustain tensile strains as high as 285%.

Microstructure, mechanical and oxidation properties of in-situ synthesized (Y2O3 + TiC)/Ti-4.5Si composites

Abstract (Y2O3 + TiC)/Ti-4.5Si composites have been in-situ synthesized using arc-melting technology. Y2O3 and TiC particles grow in near-equiaxed and dendritic shapes, which are distributed uniformly in Ti-4.5Si matrix including the network Ti + Ti5Si3 eutectic cells. From hardness and compressive tests at room temperature, (Y2O3 + TiC)/Ti-4.5Si composites show the higher hardness and compressive strength compared with the unreinforced and single TiC reinforced Ti-4.5Si matrix. The introduction of in-situ Y2O3 and TiC particles influenced the oxidation behavior of the matrix. The excellent oxidation resistance of Y2O3 and TiC particle reinforced composites is attributed to lower growth rate, dense oxide scale and stronger adherence of oxide scale.