The Laser Ablation of Microparticle Aerosol (LAMA) process provides a method for generating high yields of aerosolized nanoparticles (NPs) that are then accelerated through a nozzle and impacted onto substrates. The p...
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The Supercritical Water-cooled Reactor (SCWR) and Lead-cooled Fast Reactor (LFR) are among the six reactor concepts identified by the Generation IV initiative for the next generation nuclear reactors. materials degrad...
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In this article we have highlighted the energy benefits that are achieved using different compositions of organic waste mixtures. Since these types of materials have high calorific values, and combustion of hydrocarbo...
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In this article we have highlighted the energy benefits that are achieved using different compositions of organic waste mixtures. Since these types of materials have high calorific values, and combustion of hydrocarbons releases energy, they may be regarded as attractive raw materials and can act as a source of supplementary energy in EAF steelmaking. In this study, combustion of coke/waste plastics and coke/rubber mixtures was investigated. Our previous work reported slag foaming phenomena while using waste plastics. This study will report on the fundamental understanding of combustion of organic waste materials.
The present study describes the recent investigation of boronized surface coating on Steel, Ni super alloy and pure Tantalum. The coatings were produced by thermo-chemical treatment with an original technology powder ...
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The present study describes the recent investigation of boronized surface coating on Steel, Ni super alloy and pure Tantalum. The coatings were produced by thermo-chemical treatment with an original technology powder mixture at the temperature range of 850-1050°C. Metallographic examination, X-ray diffraction (XRD) and microhardness testing were used to determine the characteristics of the diffusion layer compared with the substrate. The continuous weighting method and the potentiodynamic polarization measurements were used to investigate the corrosion resistance of the specimen surface before and after boronizing. Also, the high temperature oxidation method detected by differential thermal analysis (TGA) was used to observe the oxidation resistance of unboronized and boronized specimens. It was shown that the boronizing process created a boride layer with a thickness of 10-80 μm depending on substrates, temperatures, and times, with microhardness of about 8-10 times greater than that of the substrate. The corrosion resistance of the boronized coating was determined to be 6-10 times higher than that of the substrate. As well, the oxidation resistance of the boronized coating was 3-5 times better than that of the substrate.
Fluorocarbon plasma etching of Si/SiGe heterostructures is demonstrated as a method for fabrication of quantum devices with vertical sidewalls. The heterostructures consist of layers of Si and SiGe, and anisotropic et...
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A dielectrophoretic, DEP, force induced assembly technique was used to achieve close-packed 2D colloidal photonic crystals on a substrate. The experimental tests were conducted on 5.3 μm carboxyl fictionalized polyst...
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Cover: The picture illustrates that the addition of dual wall carbon nanotubes (DWNTs) to PVDF leads to stable solutions, which results in nanocomposite films with good dispersion, and improved mechanical, electrical,...
Cover: The picture illustrates that the addition of dual wall carbon nanotubes (DWNTs) to PVDF leads to stable solutions, which results in nanocomposite films with good dispersion, and improved mechanical, electrical, dielectric and electromechanical properties as compared to the pure PVDF. These property enhancements may open the way to the development of improved piezoelectric materials for sensors and actuators. Further details can be found in the article by A. Almasri, Z. Ounaies, * Y. S. Kim, and J. Grunlan on page 123.
Protein membranes have been prepared by mixing gelatin (G) with Bombyx mori silk fibroin (SF) and using aqueous methanol (MeOH) to induce SF crystallization. Amorphous blends of these polymers appear quasi-homogeneous...
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Substantial R&D activities are presently under way toward the development of advanced pulsed-laser-based production tools and processes that can enable sophisticated yet effective crystallization of Si films for m...
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