Materials Literature
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In this paper, interfacial healing was achieved in carbon fiber composites <italic>via</italic> local heating generated by photothermal effect of gold nanoparticles (Au NPs).
This paper presents the results of a quantitative and qualitative monitoring system for switchgear with full electrical isolation using fiber-optic technology that aims to help in the automation of substations. The remote sensors were installed near each phase of the switchgear and they are powered only by the optical…
Based on the generalized Langevin equation for the momentum of a Brownian particle a generalized asymptotic Einstein relation is derived. It agrees with the well-known Einstein relation in the case of normal diffusion but continues to hold for sub- and super-diffusive spreading of the Brownian particle's mean square d…
Pseudoternary phase diagrams of the PtO x –CaO–TiO x system were constructed using first-principles theoretical methods to interpret experimental observations of phase formation and evolution in Pt-doped CaTiO 3 made by aberration-corrected scanning transmission electron microscopy. In this system, promoted as a self-…
Reversible tuning of localized surface plasmon resonances is achieved with strong resonance intensity in the near-IR region using hydrogen uptake into dimeric nanostructures of Pd–Ag layered nanodots. The resonance feature in the present dimer is characterized by hybridized plasmon modes between two adjacent Pd–Ag lay…
Synthesis of two different functional polyurethane dendrimers in a three step divergent method and their application is described.
In the present investigation, skin collagen fiber (CF) with a well defined hierarchical 3D fibrous structure was employed for the bio-inspired fabrication of high-performance microwave absorption materials. The hierarchical 3D structure of the CF was retained in the CF@Ni-Fe-P composites, and the formation of the Ni-F…
A carbon film was electrochemically deposited on 304 stainless steel by reduction of carbonate ions in molten LiCl-KCl-K 2 CO 3 . A Cr-O-C interlayer was prepared by a joint process of thermal exposure of the steel in air and subsequent electrochemical reactions in molten salt for the enhancement of adhesion between t…
A compressive split Hopkinson pressure bar (SHPB) was used to investigate the dynamic mechanical behavior of graphene (GR) reinforced polyurethane (PU) composites (GR/PU) at high strain rates ranging from approximately 1500 s−1 to 5000 s−1. Four types of GR/PU composites with different GR contents: 0.25% GR, 0.5% GR,…
The structural and magnetic properties of Fe(3-x)ZnxO4(x: 0, 0.1, 0.2, 0.5, 1) nanoparticles, prepared by wet chemical method, have been studied by X-ray diffraction (XRD), scanning electron microscopy (SEM), Mössbauer spectroscopy, and magnetization measurements. The nanoparticles are polyhedrical-shaped with a narro…
In this study, the effects of the degree of hydrolysis on the interfacial and emulsifying properties of soybean peptides were evaluated based on surface and interfacial tension, dynamic light scattering (DLS), and freeze-fracture transmission electron microscopy (FF-TEM) analyses. Of the five evaluated soybean peptide…
Abstract Time‐resolved photoluminescence from Si nanocrystals produced by 1100 C thermal annealing of SiO /SiO multilayers were investigated by tunable laser excitation, achieving a detailed excitation/emission pattern in the visible and UV range. The emission lineshape is a gaussian curve inhomogenously broadened bec…
Both transverse and axial growth modes were discovered in the CVD synthesis of molybdenum oxide (MoO <sub>3</sub> ) 1D structures using alkali metal based catalysts. A modified vapor–solid–solid (VSS) mechanism was proposed.
The effects of strain and confinement on the energy levels and emission spectra of dome-shaped, Ge-core-Si-shell nanocrystals (NCs) with diameters ranging from 5 to 45 nm are investigated with atomistic models. For NCs with base diameters ≥15 nm, the strain-induced increase in the energy gap is ∼100 meV. The increase…
A stepped nonlinear solution method based on differential susceptibility is presented for the quasi-magnetostatic analysis of nonlinear magnetic materials. The stepped solver is applicable to hysteretic materials and supports a permanent magnetization. A locally corrected Nyström discretization of the magnetostatic vo…
The intermediate effective Hamiltonians are designed to provide M exact energies and the components of the corresponding eigenvectors in the N-dimensional model space, with N > M. The effective Hamiltonian is not entirely defined by these N × M conditions, and several dressings of the Hamiltonian matrix in the model s…
Abstract Durch die Reaktion von 1,1,3,3‐Tetraphenyl‐1,3‐disilanol (LH 2 ) mit n ‐Butyllithium und CrCl 2 bildet sich ein einkerniger Cr II ‐Komplex 1 , der bei niedrigen Temperaturen mit O 2 zu einem einkernigen Cr III ‐Superoxid‐Komplex [L 2 CrO 2 (THF)][Li 2 THF 3 ] ( 2 ) weiterreagiert. Durch Kristallstrukturanalys…
Peptide-functionalized polymeric nanoparticles were designed and self-assembled into continuous nanoparticle fibers and three-dimensional scaffolds via ionic complementary peptide interaction. Different nanoparticle compositions can be designed to be appropriate for each desired drug, so that the release of each drug…
Two types of externally plasticized cellulose acetate (CA) were chemically modified using 4,4'-methylene diphenyl diisocyanate (MDI) as crosslinking agent. Crosslinking was performed in the molten state by means of melt mixing in an internal mixer. The viscoelastic properties of the non-crosslinked, externally plastic…
Atomic and electronic properties of armchair graphene nanoribbons under uni-axial strain are studied by ab initio calculations. Calculations for 5-, 6- and 7-armchair graphene nanoribbons show that at the equilibrium state, the difference in bond lengths in each ribbon is about 0.65 nm. The total energy of AGNRs depen…