Materials Literature
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For phase-change memory to be considered a true universal memory it would have to combine MLC storage, for low cost per bit, with adequately high endurance and at least moderate data retention. However, this appears to be particularly difficult to achieve, because of phenomena such as material segregation, which comes…
The influence that manufacturing processes have on electrical steel properties is investigated. The investigation is carried out by considering changes in measured electromagnetic quantities and the changes to parameters of a physics-based hysteresis model. The parameters of an inverse Jiles-Atherton hysteresis model…
De-oiled cakes could be a potential source of renewable energy that can supply liquid and gaseous fuels through thermo-chemical conversion processes. Thermal properties and reaction kinetics of de-oiled cakes play prominent role in design, operation, and modeling of these systems. In the present work, thermogravimetri…
Zinc oxide (ZnO) powders were synthesized by a simple precipitation and a hydrothermal process at the temperature range RT-100°C. In precipitation process, the powders were formed by mixing aqueous solutions of zinc nitrate with NaOH aqueous solution under controlled process conditions such as precursor concentration,…
Natural fibre-reinforced composites were prepared using a lignin-phenolic resol binder, in which 30 wt.-% of the phenol was substituted by a modified lignosulfonate from renewable resources. The reinforcement of the lignin phenolic binder matrix was accomplished by different natural fibres. The non-woven flax, flax/wo…
Metal corrosion resulting from microbial processes constitutes a serious expense in many industrial applications. Oil pipelines are plagued by these events leading not only to economic losses but also severe environmental consequences. Therefore, our understanding of the microorganisms that contribute to metal corrosi…
Abstract The ability to modulate fluorescence intensity with a light signal enables a variety of applications based on fluorescence imaging. One approach to fluorescence photomodulation involves using a photochromic moiety that responds to a light signal in conjunction with a nearby fluorophore. We employ conjugated p…
Abstract Photochromic diarylethene derivatives bearing hydrophilic N , N ‐bis(2‐(2‐(2‐methoxyethoxy)ethoxy)ethyl)sulfonamide (SO 2 NTEG 2 ) ( 1 – 3 ) or myo ‐inositol ( 4 – 6 ) substituents were synthesized. Although the solubility in aqueous solution of the derivatives containing the four tri(ethylene glycol) chains…
In the present study, we propose a new fragmentation criterion for the explosion phase to take account of the effect of partial fuel melt solidification on the rapid fragmentation process. This new criterion judges whether or not the explosive fragmentation can occur by comparing the impact stress induced by vapor fil…
The influence of various layered silicates: sepiolite (needle-like structure), halloysite (nanotube structure) or organomodified montmorillonite (lamellar structure) in combination with phosphorous flame retardants [ammonium polyphosphate (APP) and aluminum diethylphosphinate (OP)] on the properties and morphologies o…
The propagation of acoustic waves in two-fraction liquid mixtures containing vapor-gas bubbles of different dimensions and composition with phase transitions in each fraction is investigated. The system of differential equations of the mixture motion is presented and the dispersion equation is derived. The evolution o…
Magnetic field sensors are an important application for magnetoelectric composite materials. In these devices the external magnetic field is converted into an electric voltage. The sensitivity of the sensor is known to depend on different factors, including geometrical and material parameters. This work deals with the…
Electroswitching of emission and coloration was achieved by a combination of a luminescent Eu(III) complex and an electrochromic molecule of diheptyl viologen (HV 2+ ), in order to utilize them as novel display devices with dual emissive-reflective modes. The coloration was associated with the HV 2+ electrochromism. E…
We have prepared an all-solid-thin film electrochromic device (ECD), consisting of layers ITO / NiO / ZrO2 / WO3 / ITO using the PVD method. The WO3 is used as an electrochromic layer, NiO as an ion-storage layer, and ZrO2 as a solid electrolyte layer in the all-solid-thin film ECD. The optical transmittance varied be…
Bacterial are highly transmitted in our environment and have been identified as a primary contributor to the problem of indoor air quality and consequently lead to the illness of the occupants. Recently, nanotechnology represents an innovative approach to develop new formulations based on metallic nanoparticles with a…
NO x reduction by low temperature oxidation using ozone produced by a dielectric barrier discharge generator is investigated for different process parameters in a 6 m long reactor in serpentine arrangement using synthetic dry flue gas with NO x levels below 500 ppm, flows up to 50 slm and temperatures up to 80 °C. The…
Cu interconnects are used in semiconductor devices and their dimensions are downscaled markedly. Cu interconnects are fabricated by a damascene process, and it becomes difficult to fill Cu into trenches and vias structures by electroplating below the 20 nm feature size. We evaluated the process integration for Cu inte…
We report the experimental results on the magnetism of curvature-induced helical carbon nanotubes (HCNTs). It is demonstrated that without any magnetic impurities in the sample, the as-prepared HCNTs show clear ferromagnetism with a Curie point as high as 970 K.
In this work, the comparison effect of mica and talc as filler in EPDM composites on curing, tensile, thermal properties was studied. EPDM/mineral fillers composites were compounded using two roll mill at various filler loading (i.e., 100/0, 100/10, 100/15, 100/30, 100/50, 100/70) and curing characteristics were carri…
Solid polymer blend electrolyte system is formed using polyvinyl alcohol (PVA) and polyethylene oxide (PEO) as the host polymers. The blend films are plasticized using poly ethylene glycol (PEG) and doped with silver nitrate (AgNO3) salt. Aluminum oxide (alumina) (Al2O3) is used as nano-filler in the preparation of th…