Materials Literature
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The world is facing energy crisis and with our fuel resources coming to end, there need to be ways to use wasted and available forms of energy to produce electricity or utilize them to reduce usage of other power hungry devices. To meet the increasing world demand for energy, the rate of depletion of non-renewable ene…
In this study, we present an easy way to create layered-nanoplatelets with well-defined geometry by controlling the cracking process of nanostructured multilayers. The geometrical dimension of layered-nanoplatelets is determined by the multilayer intrinsic size, the total strain, and the elastic mismatch between the s…
Aligned poly(L-lactide) (PLLA)/poly(ϵ-caprolactone) (PCL)/poly(ethylene glycol)(PEG) fibrous membranes were fabricated by electrospinning. Their morphology, thermal stability, mechanical properties, hydrophilic properties and in vitro degradation behaviors were investigated. With increasing the content of PEG, the PLL…
In this work we compare techniques to measure the stress in Cu through silicon via's (TSV's) and study the stress as a function of post-plating anneal time and temperature. Our results show that each technique was able to measure the stresses with good agreement. However, wafer curvature was limited to measuring the i…
The sorption and desorption capacities of two soils (a loamy soddy-podzolic soil and a sandy clay chernozem) were analyzed. Both the entire soils and their particle-size fractions were studied. Samples were taken from the soils of long-term field experiments with fertilizers. A 0.01 M CaCl 2 solution was used as the e…
A series of crysnanoclay-loaded thermoplastic polyurethane (TPU) elastomer/polycarbonate (PC) nanocomposites have been prepared using twin screw extruders. The physicomechanical properties such as tensile behaviors, flexural properties and impact strength of the composites have been reported. Significant improvement i…
Progress evidenced by Moore's Law has driven increased performance at decreased cost per function. Often, the price of this progress is balanced against complexity and time-to-market (both directly impacting cost). Design enablement teams must mitigate these cost factors by delivering accurate process design kits (PDK…
A new method to produce electrically steady ZnO films without any heating process has been developed by using plasma and electron beams to facilitate bonding between the metallic component and the oxygen on coated ZnO films. Both plasma atmosphere and electron beams can function as sources of nonequilibrium bonding en…
The effect of micro-and nanocrystalline structural state on magnetic properties and magnetic entropy (ΔS M ) of Gd is investigated. The marked influence of severe plastic deformation on ΔS M is demonstrated.
The epitaxy of graphene on 3C-SiC/Si (GOS) has attracted much attention owing to its viability to fuse graphene with Si-based technologies. It is known that the surface condition of the 3C-SiC thin film before graphitization plays a decisive role in determining the quality of the GOS film. We have investigated the eff…
Measurements of the Fe K-edge x-ray absorption near edge (XANES) spectra of LnOFeAs (Ln being a lanthanide) high Tc superconductors exhibit significant changes in the pre-edge peak region upon rare earth substitution. Ab initio XANES calculations, based on the local structure centered at the Fe site obtained by crysta…
This study combined self-assembled nanosphere lithography (SANL) and inductively coupled plasma reactive ion etching (ICP-RIE) for fabricating orderly arranged quartz nanocone arrays. We reported a simple process for successfully fabricating quartz subwavelength structure (SWS) substrate, achieving broadband antirefle…
Abstract Three types of AlFePILCs pillared clays have been prepared from Algerian clay precursors. They have been characterized and tested in the Baeyer–Villiger oxidation of cyclohexanone to caprolactone using benzaldehyde and oxygen as oxidant at room temperature. The structural and textural properties of the cataly…
The nature of the contribution (additional to the phonon one) to the permittivity of bismuth ferrite ceramics has been studied using submillimeter and Fourier transform infrared spectroscopy. It has been shown that its numerical value depends on morphological features of samples, and the nature is determined by the de…
The failure rate in one of Hydro-Quebec's power plants is about three times higher than in the rest of the fleet. Over the years a total of 10 failures occurred for the six units of this plant. Spare bars were put in after every failure and the units returned to service. Apart from a few incidents, the failures were a…
This research focuses on the influence of microfillers on mechanical properties, molecular orientation, and fracture behavior of reinforced thermotropic liquid crystalline polymers (LCPs). The LCPs are random copolyesters based on 1,4-hydroxybenzoic acid (B) and 2,6-hydroxynaphthoic acid (N) with composition 73:27 mol…
A compact coil setup, in conjunction with a high power current pulser, is presented; developed especially for time- and spin-resolved photoemission spectroscopy measuring the sample in magnetic remanence at room temperature. A novel approach is presented where the sample is switched in the stray field of a coil pair.…
TiB 2 -(W,Ti)C composites with (Ni,Mo) as sintering additive have been fabricated by hot-pressing technique, and the microstructure and mechanical properties of the composites have been investigated. (Ni,Mo) promotes grain growth of the composites. In the case of 7vol.% (Ni,Mo), the grain size decreases consistently w…
We report an experimental study on shearing a monolayer of monodisperse bubbles floating on liquid in a narrow-gap Couette device. The bubbles in such a "bubble raft" coalesce only if the shear rate exceeds a threshold value. This is in contrast to the conventional wisdom that bubbles and drops coalesce for gentler co…
Abstract We were able to reduce process time in fabricating a liquid crystal display by using a blue‐phase liquid crystal having a characteristic texture. Further, we fabricated a liquid crystal display using the blue‐phase liquid crystal and an oxide semiconductor for an element substrate.