The development of one-dimensional nanostructures has revolutionized electronic and photonic industries because their unique properties. present paper reports the low-temperature green synthesis boron carbide nanowires, diameter 14 nm length 2 µm, by condensation method using castor oil as carbon precursor. nanowires synthesized exhibit beaded chain morphology, bandgap energy 2.08 eV revealed t...

Titanium carbide is used as an attractive reinforcement to produce particulate metal matrix composites. One of the problems to use this carbide as a reinforcement in copper-based composites is the lack of wetability in Cu-TiC system. This property improves as the C/Ti ratio in carbide decreases.&#10Problems to use this carbide as a reinforcement in copper-based composites is the lack of wetabii...

To improve the mechanical properties and tribological characteristics of boron carbide (B4C) ceramic, silicon (SiC) as an incorporation phase was added into matrix. The result...

Phonon polaritons are guided hybrid modes of photons and optical phonons that can propagate on the surface of a polar dielectric. In this work, we show that the precise combination of confinement and bandwidth offered by phonon polaritons allows for the ability to create highly efficient sources of polariton pairs in the mid-IR/terahertz frequency ranges. Specifically, these polar dielectrics c...

Additive manufacturing (or 3D printing) opens the possibility of creating new designs and manufacturing objects with new materials rapidly and economically. Particularly for use with polymers and polymer composites, simple printers can make high quality products, and these can be produced easily in offices, schools and in workshops and laboratories. This technology has opened a route for many t...

Intact roots of boron-sufficient squash (Cucurbita pepo L.) plants, plants entering boron deficiency, and plants recovering from boron deficiency were exposed to tritiated thymidine at the end of the treatment period to label the replicating DNA of root tip cells. Using histological sections, autoradiographs of intact root meristems were prepared. The labeling pattern in +B root tips revealed t...

A metal-based matrix is usually used for the fabrication of diamond bits in order to achieve favorable properties and easy processing. In the effort to reduce the cost and to attain the desired bit properties, researchers have brought more attention to diamond composites. In this paper, Fe-based impregnated diamond composites for drill bits were fabricated by using a pressureless infiltration s...

Boron carbide is super-strong and has many important engineering applications such as body armor cutting tools. However, the extended of boron have been limited by its low fracture toughness arising from anomalous brittle failure when subjected to hypervelocity impact or under high pressure. This abnormal directly related formation a tiny amorphous shear band 2–3 nm in width several hundred len...