Materials Literature
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Ti-6Al-4V alloy is widely used in Aerospace applications owing to its high specific strength, low coefficient of thermal expansion and good corrosion resistance. Presence of interstitial elements in the alloy has some significant effects on its properties. However the poor notch toughness and cryogenic ductility restr…
Synthesis, photophysical and metal ion recognition properties of a series of amino acid-linked free-base and Zn-porphyrin derivatives (5-9) are reported. These porphyrin derivatives showed favorable photophysical properties including high molar extinction coefficients (>1 × 10(5) m(-1) cm(-1) for the Soret band), quan…
In this work, we studied the efficiency of corrosion inhibition of carbon steel XC70 in H2SO4 0.5 M aqueous solution using ferrocenyl derivatives synthesized in our laboratory, this compound is: 3-(ferrocenylmethylamine)benzonitrile. The inhibitory potential of this compound was determined by electrochemical technique…
Abstract The X-ray absorption fine structure (XAFS) spectroscopy was used to analyze the chemical state conversion of the Ni species in SiO2-supported Ni catalysts which were prepared by the impregnation method with various Ni loadings. The in situ XAFS measurements revealed that the calcined NiO species was quantitat…
Self‐assembled lipidic amphiphile systems can create a variety of multi‐functional soft materials with value‐added properties. When employing natural reagents and following biocatalytic syntheses, self‐assembling monomers may be inherently designed for degradation, making them potential alternatives to conventional an…
Abstract Carbon deposition during CO methanation from biomass‐derived gas is a significant challenge in terms of catalyst lifetime. It results from the severe reaction conditions imposed by the presence of unsaturated hydrocarbons in the gasified feedstock. This work investigated the structure of boron‐modified Ni/Al…
A novel dendritic star-copolymer, generation 3 poly(propylene thiophenoimine) (G3PPT)-co-poly(3-hexylthiophene) (P3HT) star co-polymer on gold electrode (i.e., Au|G3PPT-co-P3HT) was used as a sensor system for the determination of phenanthrene (PHE). The G3PPT-co-P3HT star co-polymer was synthesized via in situ electr…
The nucleation and growth of electrodeposited Mn oxide rods has been investigated by preparing deposits on Au coated Si at varying deposition times between 0.5 s and 10 min. The deposits were investigated using high resolution scanning and transmission electron microscopy. A model for the nucleation and growth of Mn o…
Structure reconstruction from statistical descriptors, such as scattering data obtained using x-rays or neutrons, is essential in understanding various properties of nanocomposites. Scattering based reconstruction can provide a realistic model, over various length scales, that can be used for numerical simulations. In…
Chemical reactions create far-from-equilibrium materials by mastering self-assembly [Also see Report by Boekhoven et al. ]
Double perovskites, pyrochlores are having matching thermal expansion co-efficient with bond coat and may act as candidate materials for an intermediate layer between bond coat and top coat in Thermal Barrier Coatings. Hot corrosion stability of double perovskites and pyrochlores is also important for enhanced thermal…
The coating quality of nickel is important factor in improvement of wettability of carbon fibers to be used as reinforcing material in the production of carbon fiber reinforced metal matrix composites. In this research work, Polyacrylonitile (PAN) based carbon fibers have been Ni coated in Sodium hypophosphite reduced…
Many nanoparticle applications require molecular adlayers that impart desirable interfacial characteristics. Such characteristics are crucial in controlling the interaction of the nanoparticle with the environment or other nanoparticles; however, departures from bulk values are expected for adlayer properties and in s…
Lead Free Ferroelectric Na 0.5 Bi 0.5 TiO 3 (NBT) Ceramic has been synthesized using sol gel method. The prepared NBT samples have been sintered at different temperatures 850°C, 950°C, 1050°C and 1150°C to achieve best sintering temperature. Structural analyses have been carried out using XRD and FTIR measurements. XR…
An understanding of the plastic deformation behavior of Ti6Al4V (Ti64) is of great interest because it is used in aerospace applications due to its high specific strength. In addition, Ti alloys have limited slip systems due to hexagonal crystal structure; hence twinning plays an important role in plastic deformation.…
Notice of Violation of IEEE Publication Principles"Accurate New Methodology in Scanning Thermal Microscopy"by Abdelhak Saci, Jean-Luc Battaglia, and Indryaush Dein the IEEE Transactions on Nanotechnology, vol. 14, no. 6, November 2015, pp. 1035-1039After careful and considered review of the content and authorship of t…
Novel polyurethane (PU) catiomers with high urethane density are explored as templates for self-assembling into drug-carrying nanomicelles via a salting-out method. The micelles sizes, the salting-out efficiency, and drug encapsulation efficiency have been analyzed by dynamic light scattering and UV–vis. The ratio cat…
ABSTRACT 9 H ‐carbazole‐9‐ethyl and 9 H ‐carbazole‐9‐hexyl‐terminated polyhedral octasilicate (OS)‐core dendrimers, denoted as OS‐C2‐Cz and OS‐C6‐Cz, respectively, were prepared by ring‐opening reaction and subsequent condensation of octakis(propenyl succinicanhydrido)polyhedral octasilicate (OS‐SA) with 9 H ‐carbazol…
Various complex self-assembled morphologies of lamellar- and cylinder-forming block copolymers comprising poly(dimethylsiloxane)-b-polylactide (PDMS-b-PLA) confined in cylindrical channels were generated. Combining top-down lithography with bottom-up block copolymer self-assembly grants access to morphologies that are…
Abstract The relationship between the microstructure and magnetic properties of Nd–Fe–B sintered magnet compressed by shock wave with 6.26 GPa ≤ p ≤ 7.16 GPa was investigated. It reveals that Nd–Fe–B magnets show a demagnetization behavior after compressed by shock wave. The intergranular fracture is the main occurrin…