Materials Literature
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A physical vapour condensation method is employed to fabricate the silicon nanoparticles at different heating rates. We have grown silicon nanoparticles at two different heating rates i.e., 10°C/min and 20°C/min. It is observed that the nanoparticles synthesise at low heating rate (10°C/min) are more uniform and spher…
The subsolidus phase relations in the Bi4Ti3O12-Ag/Ag2O-TiO2 system were determined by means of solid-state reaction, X-ray diffraction and scanning electron microscopy. The rutile and anatase phases showed different chemistries when reacting with the Ag/Ag2O-Bi2O3, and the Ag0.5Bi8.5Ti7O27 phase can be obtained from…
The degradation of a thermal barrier coating (TBC) system is dominated by the formation and growth of a thermally grown oxide (TGO) layer between the ceramic topcoat and metallic bond coat, leading to a separation near the ceramic/bond coat interface during service. Crack propagation in a thermally sprayed TBC normall…
This paper addresses the problem of optimizing metalization patterns of back-end connections for the power-MOSFET based driver since the back-end connections tend to dominate the on-resistance Ron of the driver. We propose a heuristic algorithm to seek for better geometric shapes for the patterns targeting at minimizi…
L'étude porte sur la caractérisation microstructurale d'un matériau polymère par la spectroscopie Raman. Les objectifs du travail sont de justifier l'utilisation de la spectroscopie Raman comme une technique fiable pour la caractérisation des matériaux polymères et de mieux comprendre la formation des structures hétér…
Novel polypyrrole-polylactide blends were fabricated and characterized using compression molding, salt leaching, and in situ polymerization. Open-porous polylactide samples were fabricated using compression molding and salt leaching techniques with varying salt-to-polymer mass ratios of 3:1, 6:1, and 9:1. The samples…
The Boiling Heavy Water Reactor Blowdown 16 Experiment, which was performed in the Marviken experimental facility, was simulated with the CONTAIN and ASTEC CPA codes. The main purpose of the work was the assessment of the codes for simulating thermal-hydraulic phenomena in a BWR containment at accident conditions. Sim…
20 - nm -thick Ti0.94Fe0.06O2∕Ti0.94Mn0.06O2 (TFO/TMO) superlattice films, where each alternating layer is about 0.27nm thick, were prepared at 500°C by pulsed-laser deposition on (11¯02)-sapphire substrates with and without atomic flatness. The authors then investigated structural and ferromagnetic properties of thes…
As an energy absorption member, fiber-reinforced composites (FRPs) are more favorable because they are light in weight and possess better energy absorption capabilities as compared to their metal counterparts. However, the energy absorbing mechanisms of FRP are complicated owning to the multi-micro fractures. Therefor…
We report the first lateral current injected photonic crystal light emitting diodes. The devices utilize a transverse junction that is created using selective ion implantation. Electrical and spectral properties showing the influence of the photonic crystal are reported.
TadashiOhtakeandKazufumiOgawa fqddvCedferfdcfeCe G(JJrJJrg77g7J7gJgrIrJUJ7J1 2277-2 C07JgW757-03 Three Chemically-Adsofbed(CA)monolayershavingchalconylgroupswereprepared foruseasaliquidcrystal(LC)alignmentlayerhavinganin-Planeanisotropyandbeing Photo-CrOSSlinked by theirradiation oflinearly polarized UVlightThe surfac…
An evaluation of the effect of nitridation temperature on interface layer (IL) quality of Hf-silicate gate dielectric prepared by the atomic layer deposition method has been reported. An increase in IL density and IL roughness was observed by x-ray reflectivity as the nitridation temperature was increased. X-ray photo…
The dynamics of photoinduced dichroism has been experimentally and theoretically (on the basis of the Dumont model) investigated in several ridge-shaped azopolymers. This dynamics was used to reconstruct the dynamics of change in the concentration of trans -isomers and anisotropy of their angular distribution, thickne…
We have developed a continuous composition spread-pulsed laser deposition (CCS-PLD) system of scanning laser for exploring new functional complex metal oxides. Our new CCS-PLD system is based on a precisely controlled synchronization between the laser firing, target exchange, linear mask motion and mirror swinging, an…
Displacement of actin filament and its binding proteins in mouse myoblasts under locally applied deformation was analyzed by manual method or digital image correlation method. Cyotoskeletal components labeled by immunofluorescent technique or green fluorescent protein-fused protein were deformed via the movement of a…
The phase components and microstructure of as-cast Ti 41.5 Cu 37.5 Ni 7.5 Zr 2.5 Sn 5 Hf 5 Si 1 glass forming alloy was investigated by differential scanning calorimetry (DSC), scanning electron microscopy and in-situ neutron diffraction studies. For diameters above 3 mm the samples present small crystals identified a…
Dense (1010cm-2) quantum dots (QDs) were grown in inverted pyramidal recesses by OMCVD. The high uniformity of the QD arrays is demonstrated by micro-photoluminescence spectra having linewidth as small as 6.5 meV and AFM measurements.
The Boiling Water Reactor (BWR) shroud support dissimilar metal (DM) joints, which are made of Alloy182 nickel based alloy weld material, are susceptible to Intergranular Stress Corrosion Cracking (IGSCC). IGSCC of these weld joints is an industry wide issue that is receiving constant attention from both power plant o…
The blinking statistics of single CdSe/ZnS quantum dots can be modified and controlled by an optical mirror. We study the modified statistical and correlation properties of single quantum dots as a function of dot-mirror distance.
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