Nano fibers produced by electrospinning are of industrial and scientific attention due to their special characteristics such as long length, small diameter and high surface area. Applications of electrospun structures in nanotechnology are included tissue scaffolds, fibers for drug delivery, composite reinforcement, chemical sensing, enzyme immobilization, membrane-based filtration, protective ...

Aligning multiwall carbon nanotubes (MWNTs) with the direction of load is desirable for maximizing tensile reinforcement in composites. This has been accomplished by spinning composite fibers containing MWNTs[1]. The shear and elongational flow fields inherent to fiber processing cause the MWNTs to align with the fiber axis. Efficient stress transfer from the matrix to the MWNTs is also a cruci...

In cement composites, usually, reinforcement is provided to restrict the crack development and their further propagation under service conditions. Typically, reinforcements utilized in cementitious composites range from nanometer scale millimeter by using nano-, micro-, millimeter-sized fibers particles. These provide arresting mechanisms at nano/microscale growth of cracks loads, but synthesis...

Nowadays, SiC is one of the refractory materials which is used widespread because of its unique properties like structural stability in high temperatures. SiC nano whiskers are important in reinforcement of different kinds of composites like ceramic base materials, thanks to their outstanding mechanical, thermal, and chemical properties like low expansion coefficient, high thermal resistant, hi...

Abstract To effectively reduce the field concentration around a hole or crack, an anti-plane shear problem of nano-elliptical nano-crack pasting reinforcement layer in one-dimensional (1D) hexagonal piezoelectric quasicrystal (PQC) is investigated subject to remotely mechanical and electrical loadings. The surface effect dielectric characteristics inside are considered for actuality. By utilizi...

Abstract Aluminum oxide (Al 2 O 3 ) nanoparticles are capable of improving the material characteristics if reinforced to soft and low strength material. The major limitation in utilization Al alloy 6061 medium heavy stress applications such as automobile, defense, transportations, aerospace is hardness strength. In order overcome deficiency Al6061, nano-Al Al6061 matrix nanocomposite (AMNC) was...