X-ray diffraction (XRD), current–voltage (IV), capacitance–voltage (CV), deep-level transient Fourier spectroscopy (DLTFS) and isothermal transient spectroscopy (ITS) techniques are used to investigate the thermal annealing behaviour of three deep levels in Ga0.986In0.014As heavily doped with Si (6.8× 1017 cm−3) grown by molecular beam epitaxy (MBE). The thermal annealing was performed at 625 ◦...

We report experimental data of creep cavity shrinkage for dispersion-strengthened-cast aluminum with about 23 vol pct submicron Al2O3 dispersoids, annealed isothermally or subjected to thermal cycling without applied stress. Thermal cycling is found to increase the rate of densification by a factor of 3 to 5.5 relative to isothermal annealing at the upper cycling temperature, allowing for recov...

In the application of UREX+1 process, technetium will be separated together with uranium and iodine within the first process step. After the separation of uranium, technetium and iodine must be immobilized by their incorporation in a suitable waste storage-form. Based on recent activities within the AFCI community, a potential candidate as waste storage form to immobilize technetium is to alloy...

Thermal annealing strongly impacts the nano- and microstructure of conjugated polymers. Despite the fundamental importance for the resulting optoelectronic behavior of this class of materials, the underlying crystallization processes have not received the same attention that is encountered in other disciplines of materials science. The question arises whether classical treatment of nucleation a...

in this paper, a non-isothermal two-phase flow in the cathode gas diffusion layer (gdl) of pem fuel cell is modeled. the governing equations including energy, mass and momentum conservation equations are solved by numerical methods. also, the optimal values of the effective parameters such as the electrodes porosity, gas diffusion layer (gdl) thickness and inlet relative humidity are calculated...

The problem of phase stability is one the key problems in study high-entropy alloys. Here we address this issue for a heat-resistant TiZrHfNb alloy with bcc structure. evolution structure studied during isothermal annealing at T=400 o C. It was found that as-cast consists two coexisting phases similar unit cell parameters. This state homogenized annealing. Still, highly stressed nanostructured ...

Secondary recrystallization id grain-oriented silicon steel is studied by the high-temperature background damping. Abnormal grain growth involves an abrupt drop of the background. The temperatures of initiation and completion of the secondary recrystallization are, thus, determined for the sane sample from the definite change in background with increasing temperature. The background measured on...

CPA is a class of isothermal amplification reactions that is carried out by a strand displacement DNA polymerase and does not require an initial denaturation step or the addition of a nicking enzyme. At the assay temperature of 63°C, the formation of a primer-template hybrid at transient, spontaneous denaturation bubbles in the DNA template is favored over re-annealing of the template strands b...

A review of the formation processes for nickel silicide is given to assess the limitations of using the silicide for sub-65 nanometer technologies. Various aspects attributed to the NiSi formation process are described and addressed by using a two-step process sequence for annealing. The focus of this study was to develop a process sequence with three principal steps to achieve low resistivity ...