Materials Literature
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In this paper, the dynamics of phase coarsening at ultrahigh volume fractions (0.9≤VV≤0.96) is first studied based on two-dimensional phase-field simulations by numerically solving the time-dependent Ginzburg–Landau and Cahn–Hilliard equations. It is shown that the cubic average radius of particles is approximately pr…
The effects of magnetic field on the martensitic transition have been studied in Ni45Co5Mn38Sb12. We find a large field-induced irreversibility in this system, as revealed by the field dependence of resistivity, magnetization, and heat capacity data. At the critical temperature, the field-induced conversion of the mar…
Abstract Lightweight composites are preferred for automotive applications due to the weight restrictions and also due to the presence of inherent voids that can enhance the sound absorption of these composites. The density of the reinforcing materials plays a crucial role in such lightweight composites. Milkweed is a…
A simulation model to investigate the statistical property of electrical breakdown is presented based on the field-assisted percolation model for dielectric breakdown, by expressing the disorder in morphology as randomly distributed trap barriers. The effects of sample area and large defects on the statistical propert…
Abstract Nucleophilic substitution reactions of 5,10,15‐tris(pentafluorophenyl)corrole ( 1 ) with amines were examined as a post‐modification route to functional corroles. Reaction of 1 with an excess of amine nucleophiles led to exclusive formation of 5,10,15‐tris(4‐amino‐2,3,5,6‐tetrafluorophenyl)‐substituted corrol…
Bicontinuous, interfacially jammed emulsion gels (bijels) represent a class of soft solid materials in which interpenetrating domains of two immiscible fluids are stabilized by an interfacial colloidal monolayer. Such structures can be formed by arrested spinodal decomposition from an initially single-phase colloidal…
Single-walled carbon nanotube field-effect transistors (CNT-FETs) were characterized before and after gamma radiation treatment using noise spectroscopy. The results obtained demonstrate that in long channel CNT-FETs with a length of 10 μm the contribution of contact regions can be neglected. Moreover, radiation treat…
The density functional theory is used to explore structural properties of alkyl-thiolate (RS) monolayers on Au(111) and Cu(111). RS adsorption drives pronounced, albeit qualitatively different, reconstruction of both surfaces. On Au(111), the stable structure comprises RS−Au−RS complexes with RS in atop positions, whe…
We investigated vacancies, antisites, and nitrogen substitutional defects in ZnO single-walled zigzag and armchair nanotubes using spin-polarized density-functional calculations. We found that all defects introduced defect levels in the band gap. Among the investigated defects, oxygen vacancy had the lowest formation…
Abstract The mechanical behavior of polymer materials is strongly dependent on polymer structure and morphology of the material. The latter is determined mainly by processing and thermal history. Temperature‐dependent on‐line X‐ray scattering during deformation enables the investigation of deformation processes, fatig…
We present direct measurements of the kinetics of surface relief gratings (SRGs) formation in amorphous AsxSe100−x (20≤xAs≤50) thin films. SRGs are induced in different holographic schemes of recording using near-band-gap light and their growth is further facilitated by illumination with an interference pattern and ob…
This paper reports dynamic behavior of a liquid-state accelerometer prototype, which uses a liquid marble as the inertial proof mass. The governing equation is developed in comparison with the solid-state proof mass in a conventional accelerometer. Numerical analysis and experimental validation show that with appropri…
Organically functionalised supertetrahedral clusters: Two novel coordination polymers, consisting of chiral helical nanotubes and of composite layers, have been obtained by linkage of gallium-sulfide supertetrahedral clusters and dipyridyl ligands (see picture).
We report synthesis and luminescent characteristics of core-shell nanostructures of silicon and silicon oxide having two different morphologies—spherical (nanodot) and rodlike (nanorod), prepared by controlled oxidation of mechanically milled crystalline silicon and by exfoliation of the affected layer of porous silic…
We have used scanning gate microscopy to explore the local conductivity of a current-annealed graphene flake. A map of the local neutrality point (NP) after annealing at low current density exhibits micron-sized inhomogeneities. Broadening of the local e-h transition is also correlated with the inhomogeneity of the NP…
A novel optically transparent membrane composed of porphyrin-clay mineral complexes was developed. Reversible solvatochromism behavior of the membrane was successfully observed, due to an orientation change of porphyrin in the clay interlayer space. The lambda(max) value of porphyrin was 423 nm in acetone, while it wa…
Around 2003, the first concerns related to potential environmental exposure and related effects of engineered nanoparticles (ENPs) were raised in the scientific literature. Today it is evident that the widespread and diverse use of products containing ENPs, as well as the expected increase in the number of such produc…
Due to flexoelectricity, a cholesteric liquid crystal unidirectionally aligned in a sandwich cell, with its helix lying parallel to the confining cell substrates, exhibit a flexoelectro-optic response when subjected to an electric field applied perpendicular to the helix axis. The clarity of the flexoelectro-optic res…
Layer-by-layer (LbL) assembly was used to generate transparent, highly conductive thin films containing carbon nanotubes. Three different types of nanotubes were used, (1) multiwalled carbon nanotubes (MWNTs), (2) a mixture of single, di-, and triwalled nanotubes, also known as few-walled carbon nanotubes, and (3) pur…
Matrix-assisted laser desorption/ionization-ion mobility-mass spectrometry (MALDI-IM-MS) was used to analyze low mass gold-thiolate fragments generated from thiolate-protected gold nanoparticles (AuNPs). This is the first report of using gas-phase structural separations by IM-MS for the characterization of AuNPs, reve…