Abstract Titanium diboride (TiB 2 ) is considered a promising material for wettable cathodes in aluminum electrolysis. The demand associated with the development of inert anode technologies to eliminate CO emissions caused by conventional reduction process. has been given special attention due its superior properties, such as high wettability, good electrical conductivity, wear resistance, and ...

It is well established that the superconductivity in the recently discovered superconducting compound MgB2 resides in the quasi-two-dimensional band (sigma band) and three-dimensional band (pi band). We demonstrate that, due to such band structure, the anisotropic Ginzburg-Landau theory practically does not have a region of applicability, because gradient expansion in the c direction breaks dow...

A new dimensionless relationship for analysis of ballistic penetration data is derived and applied to polycrystalline ceramic materials. Targets consist of ceramic tiles backed by thick metallic plates within which residual penetration depths have been reported in experimental studies. Particular ceramics analyzed here are lowand high-purity alumina, aluminum nitride, boron carbide, silicon car...

Ultra-refractory diborides are currently studied mainly as thermal protection materials for aerospace and military applications. However, their favourable properties (very high melting points and good thermo-mechanical properties at high temperatures) can be advantageously exploited to increase the operating temperature of thermodynamic solar plants in concentrating solar power systems. This pa...

Abstract Now a days, the Zn-Al-Cu alloy-based composites have great impact on modern trends for bearing applications because of its reliable mechanical performance. In this paper characteristics as cast hybrid metal matrix been investigated, well influence reinforcements Silicon Carbide (SiC) and Titanium Diboride (TiB 2 ) composite. The ultrasonic assisted stir casting technique has adopted fa...

Nanoparticles of titanium diboride (TiB2) coated with a conductive polymer and subjected to an oxidizing agent was carried out in this research. TiB2 nanoparticles polypyrrole (PPy) were studied using XRD TEM techniques. Nitrogen adsorption desorption properties are covered modified understand better the surface zone, structural features, pore geometries nanoparticles. The water-based hazardous...

A phase field framework of elasticity, inelasticity, and fracture mechanics is invoked to study the behavior ceramic materials. Mechanisms addressed by theory include deformation twinning, dislocation slip, amorphization, anisotropic cleavage fracture. Failure along grain boundaries resolved explicitly, whereWeibull statistics are used characterize surface energies such boundaries. Residual str...

We report on tunneling and Andreev-reflection conductance spectra of 39 K superconducting magnesium diboride, obtained with Pb and Au counter-electrodes. Two distinct steps at close to 2.7 and 7.1 meV appear in a low-resistance metallic-type Au-MgB2 junction characteristic, whereas a tunneling-like spectrum measured for the same junction, annealed by the application of dc current, exhibits only...