A silicon photodiode coated with an interface-engineered Mo/Si multilayer was developed as a polarization sensitive detector. The Mo/B4C/Si multilayer was designed to reflect 13.5-nm extreme-ultraviolet (EUV) radiation at an incident angle of 45 degrees, at which the maximum polarization sensitivity occurs. The sensitivity of this specially coated photodiode and its polarization responses were ...

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...

Zirconium diboride ceramics with and without carbon boron carbide nanopowder additives were prepared by ball milling ZrB2 grinding media pressureless sintering. Additions of up to 1 wt% nano-B4C 0.5 C made the powder. The materials then sintered between 1800 2300 °C for 90 360 min in an Ar/10H2 atmosphere. After sintering at 2200 min, densities ranged from 88.3 90.7% 0–1.0% addition. Carbon add...

Our previous constitutive model for fully dense ceramics has been extended to include A1203 (AD999) and Si3N4; there are now parameters for seven materials. New experimental data, such as spall and double-shock wave-profiles for SiC and B4C, have been successfully simulated. Additional experiments are proposed which should help elucidate the remaining problems.

In Korea, an accelerator-driven system (ADS) called HYPER (Hybrid Power Extraction Reactor) is being studied for the transmutation of the radioactive wastes. HYPER is a 1 000 MWth leadbismuth eutectic (LBE)-cooled ADS. In this paper, the neutronic design characteristics of HYPER are described and its transmutation performances are assessed for an equilibrium cycle. The core is loaded with a duc...