Materials Literature
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The corrosion property of carbon steel was evaluated using an autoclave under CO(2)-saturated water phase and water-saturated CO(2) phase with impurities (O(2) and SO(2)) at 80 bar CO(2) and 50 °C to simulate the condition of CO(2) transmission pipeline in the carbon capture and storage (CCS) applications. The results…
A stoichiometric derivative of graphene with a fluorine atom attached to each carbon is reported. Raman, optical, structural, micromechanical, and transport studies show that the material is qualitatively different from the known graphene-based nonstoichiometric derivatives. Fluorographene is a high-quality insulator…
The present paper reports, for the first time, the processing, characterization and wear property of a novel HDPE–decagonal quasicrystal (QC) composite prepared by compression molding. The composites were prepared at 130°C and an applied pressure of 0.735 MPa with different holding time to obtain a fully dense product…
Poly(anhydride-esters) based on 5-aminosalicylic acid (5-ASA) were synthesized via solution polymerization. This polymerization method produced polymers with higher molecular weights and better solubility in organic solvents, relative to polymers produced by melt condensation polymerization. Three synthetic steps were…
The spin states and electronic structure of layered perovskite ${\text{La}}_{1.5}{\text{Ca}}_{0.5}{\text{CoO}}_{4}$ are investigated using full-potential linearized augmented plane-wave method. All the computational results indicate that the ${\text{Co}}^{2+}$ ion is in a high-spin (HS, ${t}_{2g}^{5}{e}_{g}^{2}$) stat…
The energetics and structure of various types of single extrinsic Ti defects in NaAlH(4) bulk and (001) slab at the hydriding/dehydriding critical point environment were studied systematically. It is found that the most favorable situation is Ti substituting Al at the subsurface (Ti(Al)(2nd)), which has the highest co…
We measure, simulate, and analyze the optical transmission through arrays of Ag nanorod pairs and U-shaped nanostructures as a function of polarization and angle of incidence. The bianisotropic nature of the metamaterials is exhibited in data and in simulations, and we argue that the electric field rather than the mag…
Enhanced photocatalytic properties of oriented films of rutile nanorods have previously been observed when the polarization of UV light is parallel to the rutile c axis. To reach a better understanding of this effect, we report here an investigation, in the dark and under UV-light irradiation, of the electrical resist…
Ionocovalency (IC), a quantitative dual nature of the atom, is defined and correlated with quantum-mechanical potential to describe quantitatively the dual properties of the bond. Orbiotal hybrid IC model scale, IC, and IC electronegativity scale, X(IC), are proposed, wherein the ionicity and the covalent radius are d…
In this study, a family of defect-free and structurally analogous sheet-tube frameworks (STFs) constructed by tailored graphene sheets and (3n, 3n) armchair single-walled carbon nanotubes (SWCNTs) was proposed. First-principles calculations have been employed to investigate the structural and electronic properties of…
Quasicrystalline as well as crystalline faceted single grains of four phases were obtained during directional crystallisation of an Al–Cu–Fe alloy by the Bridgman technique. The monoclinic λ phase, Al13(Cu, Fe)4, dominating at high temperatures formed single-crystal lamellae 0.5 mm to 1 mm thick. A second type of attr…
Abstract Solution and dispersion copolymerizations of N ‐phenylmaleimide (PMI) with either styrenics or alkyl vinyl ethers (AVEs), systems with a tendency to give alternating polymers, were investigated with the goal of producing high glass transition particles. Equimolar solution copolymerization of PMI with styrenic…
A severe irradiation accident involving a victim occurred in April 2009 in South America. The victim has found a (192)Ir source fallen from a gammagraphy device and has put it in the left pocket of his pants. Very quickly, an erythema and a blister appeared on the left leg of the victim involving hospitalisation. Foll…
Creation of higher-ordered polymeric architectures composed of alternative assemblies of single-walled carbon nanotubes (SWNTs) and fibrous porphyrin J-aggregates can be easily achieved utilizing the cationic semi-artificial polysaccharide which can act not only as a tubular host for SWNTs but also as a one-dimensiona…
Sacrower See is a eutrophic lake with annually laminated sediments extending back to A.D. 1868. Analysis of annual layers revealed multi-decadal periods of distinct diatom assemblages at A.D. 1868–1875, 1876–1940, 1941–1978, and 1979–2000. Detrended correspondence analysis performed on individual seasonal sediment lay…
The development of protein-based materials with diverse mechanical properties will facilitate the realization of a broad range of potential applications. The recombinant Drosophila melanogaster transcription factor Ultrabithorax self-assembles under mild conditions in aqueous buffers into extremely extensible material…
LiBH 4 doped with 1.6 mol % well-dispersed C 60 is studied with solid-state nuclear magnetic resonance (NMR). Variable-temperature hydrogen NMR shows large changes between the data upon first heating and after exposure to 300 °C. After heating, a large fraction on the order of 50% of the hydrogen signal appears in a m…
This study demonstrates the first use of a dielectric constant meter, coupled with an automated data logging module, for in situ monitoring of solution crystallization processes. The results show that this in situ measurement could detect not only the cloud point that corresponds to the onset of nucleation but also th…
Abstract Ring‐opening polymerization of 1,4‐dioxan‐2‐one in bulk was initiated by three titanium alkoxides, titanium dichlorodiisopropoxide (TiCl 2 (O i Pr) 2 ), titanium chlorotriisopropoxide (TiCl(O i Pr) 3 ), and titanium tetraisopropoxide (Ti(O i Pr) 4 ). The results indicate that the polymerization rate increased…
Abstract The aim of this study was to examine the properties of polyester nanofibers produced by the electrospinning method. Solvent‐spun nanofibers with different concentrations of poly(ethylene terephthalate) (13, 16, and 20 wt %) were produced. The morphology and surface energy of the fibers were analyzed by scanni…