The microwave absorption properties of Ni/(C, silicides) nanocapsules prepared by an arc discharge method have been studied. The composition and the microstructure of the Ni/(C, silicides) nanocapsules were determined by means of X-ray diffraction, X-ray photoelectric spectroscopy, and transmission electron microscope observations. Silicides, in the forms of SiOx and SiC, mainly exist in the sh...

Metal, typically gold [Au], nanoparticles [NPs] embedded in a capping metal contact layer onto silicon carbide [SiC] are considered to have practical applications in changing the barrier height of the original contacts. Here, we demonstrate the use of silver [Ag] NPs to effectively lower the barrier height of the electrical contacts to 4H-SiC. It has been shown that the barrier height of the fa...

The focus of this project was the characterization and growth of 3C-silicon carbide (b-SiC) nanowires using the vapor-liquid-solid method. Chemical vapor deposition (CVD) occurred at temperatures ranging from 1050oC to 1100oC using silane and propane as precursor gases. Experimentation with various surface preparations, including metal catalysts such as nickel (Ni) and aluminum (Al) deposited b...

A study has been presented on the effects of intrinsic mechanical parameters, such as surface stress, surface elastic modulus, surface porosity, permeability and grain size on the corrosion failure of nanocomposite coatings. A set of mechano-electrochemical equations was developed by combining the popular Butler-Volmer and Duhem expressions to analyze the direct influence of mechanical paramete...

• ZrB2-SiC ceramics were joined using Ni foil filler and spark plasma sintering. Joining mechanisms of identified. Mechanical tests performed to evaluate the mechanical properties fabricated joints. Oxidation behaviour joint was characterised analysed over a wide range temperature. is crucial for ultra-high temperature (UHTCs) be used in demanding environments due difficulty manufacturing large...