Abstract Polyurea as one kind of polymer is widely used in the field protective under blast and impact loading. matrix with nanofillers has superior mechanical properties than pure polyurea. In this work, order to develop polyurea thermal stability high properties, using Silicon carbide (SiC) nanofillers, nanocomposites different content SiC nanoparticles were prepared via in-situ polymerizatio...

This study investigates the effects of micro- and nano-sized SiC powder on the rheological behavior of Al based feedstocks for powder injection molding (PIM).  Different compositions of Al feedstocks with additions of micro and nano-SiC powder were prepared and their rheological properties were measured with a rotational rheometer. The effects of SiC content and shear rate were investigated and...

The present review on some metal oxide nanoparticles used for pressure sensor, various metal oxide containing such as (SnO2, ZnO, Al2O3, WO3, Fe2O3, Ga2O3, TiO2 and SiC, ...etc.) responds detection pressure measure in kbar unit through oxygen activity as oxidation or reduction process of an integrated in devices sensor (MEMS, CMOS, MOX and MOXQ1D...etc.) that devices measuring of pressure as st...

Effective control of melting and solidification behaviours of materials is significant for numerous applications. It has been a long-standing challenge to increase the melted zone (MZ) depth while shrinking the heat-affected zone (HAZ) size during local melting and solidification of materials. In this paper, nanoparticle-induced unusual melting and solidification behaviours of metals are report...

Amorphous hydrogenated carbons and their alloys with silicon are discussed as candidate carriers of Extended Red Emission. In this respect, their photoluminescence spectra are too blue, weak and broad. By contrast, crystalline nanoparticles of pure silicon are shown to satisfy the constraints of available observations. Such dust can plausibly condense, even in carbonrich circumstellar shells, i...

We investigate the small-particle phonon-polariton response of several microstructures that are made of silicon carbide (SiC). Phonon polaritons can be excited in a wavelength region between 10 and 12 mm. Simple structures such as elliptical cylinders support phonon polaritons at two wavelengths, which depend on the axis ratio of the particle. In particles with a more irregular shape such as re...

Light emission from a quantum well-dot structure comprising amorphous Si nanoparticles (∼1.4 nm) embedded in SiC/SiN(x) multilayers (a few tens nm thick for individual sublayers) was investigated. Strong blue-green photoluminescence was measured at room temperature on the as-deposited samples and the spectral profile shows some markedly modulated features. It displays flattened profiles of roug...

Laser ablation in liquid (LAL) sampling method transformed hard-to-digest materials to soluble particles, and thus allowed for smooth decomposition by acid digestion. LAL sampling is useful to generate nanoparticles from samples with less contamination. After acid digestion, trace elements in the LAL-sampled particles were analyzed by solution nebulization inductively coupled plasma mass spectr...

The properties of semiconductor materials can be strongly affected by the addition metallic nanoparticles. Here we investigate SiC + Au and Si3N4 thin films prepared magnetron sputtering deposition followed thermal annealing. influence gold on optical electrical is explored. We show formation self-assembled nanoparticles in Si3N4, with size arrangement determined annealing conditions. Both SiC-...

The low hardness and strength of aluminum, which limits its use in many industrial applications, could be increased through the addition of nanoparticles. However, the appropriate processing method and parameters should be carefully selected in order to achieve the desired improvement in properties. In this work, aluminum was reinforced with low weight fraction (1 wt.%) of SiC nanoparticles and...