Materials Literature
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A facile, rapid, and scalable electrophoretic deposition approach is developed for the fabrication of large-area chemically derived graphene films on conductive substrates based on the electrophoretic deposition of graphene oxide and reduced graphene oxide components. Two distinctive approaches for fabricating conform…
The recent discoveries of novel nanocomposite and doped lead chalcogenide-based thermoelectric materials have attracted great interest. These materials exhibit low thermal conductivity which is closely related to their lattice dynamics and thermodynamic properties. In this paper, we report a systematic study of electr…
This paper examines the impact responses of reinforced concrete (RC) beams through an experimental study and presents an analytical model developed to predict the maximum midspan deflection and maximum impact load, which aids as an important performance index to evaluate the damage levels of RC beams when subjected to…
Neutron powder-diffraction-based atomic pair distribution functions (PDFs) are reported from the new wide-angular-range chopper spectrometer ARCS at the Spallation Neutron Source at Oak Ridge National Laboratory. The spectrometer was run in white-beam mode with no Fermi chopper. The PDF patterns of Ni and Al 2 O 3 wer…
Carbon nanotubes functionalized with sulfonated polyether-ether-ketone are investigated using solid state nuclear magnetic resonance. Carbon and proton NMR experiments of the sulfonated polymer chains covalently grafted on the nanotube surface reveal a distribution of diamagnetic shifted lines. These experimental resu…
A facile strategy was developed here to prepare cross-linked polymeric nanocapsules (CP nanocapsules) with silica nanoparticles as templates. The silica nanoparticle@cross-linked polymer nanoparticles were prepared by the encapsulation of the silica nanoparticles by the one-pot approach via surface-initiated atom tran…
Threshold current density of switching was found to grow several decades at constant threshold electric field with reducing interelectrode distance. Data are compared with predictions of various switching theories. Experimental estimate of current density in an electronic filament is reported based on a programming "d…
Due to different interface densities and arrangements, the compacted type nanocomposites may yield even lower thermal conductivity than embedded type nanocomposites. In this paper, the phonon transport and thermal conductivity in compacted type nanocomposites (nanowires and nanoparticles) are investigated using a dete…
The selective synthesis of new types of alumosiloxanes can be achieved by the reaction of the bicyclic compound Al 2 [(OPh 2 Si) 2 O] 3 ·2 Et 2 O ( 3 ) with water in donor solvents like acetone or THF, leading to the polycyclic THF adduct [(Ph 2 SiO) 8 (AlO 1,5 ) 4 ]·2 THF, ( 7 ), and to the polycyclic alumosiloxane […
Simulation of contrast formation in Auger electron imaging of surfaces is helpful for analyzing scanning Auger microscopy/microanalysis (SAM) images. In this work, we have extended our previous Monte Carlo model and the simulation method for calculation of scanning electron microscopy (SEM) images to SAM images of com…
The effect of thermal annealing within the incommensurate phase (memory effect) on thermal expansion of ferroelectric-semiconductor crystal TlGaSe2 has been investigated. Strong transformation of linear expansion coefficients both in the layers plane and in the direction perpendicular to the layers has been observed f…
Phase field method has been used to simulate the vortex structures in BaTiO3 (BTO) nanoparticles. Through the modulation of the gradient coefficients, vortices are found to transform in a path of monoclinic MA→orthorhombic→monoclinic MC→tetragonal. Although the gradient coefficients vary significantly, the change in g…
Abstract Ti‐based polyhedral silsesquioxanes (Ti‐POSSs) have been prepared and dispersed in polystyrene (PS), by in situ polymerization, and the resulting materials have been characterized by several experimental techniques including both scanning (SEM) and transmission (TEM) electron microscopy, wide angle X‐ray diff…
Using simulations, we construct the effective dynamics in metabasin space for a Lennard-Jones glass former. Metabasins are identified via a scheme that measures transition rates between inherent structures and generates clusters of inherent structures by drawing in branches that have the largest transition rates. This…
This paper proposes approaches to create shaped woven textiles (SWTs) for seamless woven fashion by designing diverse simple weaves and applying their dimensional changes. A widespread stretch material (spandex) was selected as the main fillings for shape changes. The research introduces the four design parameters of…
ADVERTISEMENT RETURN TO ISSUEPREVCommunication to the...Communication to the EditorNEXTElectroactive Block Copolymer Brushes on Multiwalled Carbon NanotubesDaisuke Izuhara and Timothy M. Swager*View Author Information Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, M…
We measured the anisotropic magnetoresistance (AMR) and the planar Hall effect (PHE) in a [001] oriented epitaxial thin film of La0.7Ca0.3MnO3 (LCMO) as a function of magnetic field, temperature, and current direction relative to the crystal axes. We find that both AMR and PHE in LCMO depend strongly on the current or…
The flow field inside an air-jet loom main nozzle is studied numerically, by means of a two-dimensional model implemented in the commercial computational fluid dynamics (CFD) code Fluent. In order to determine which physical model could allow a better prediction of the nozzle behavior, preliminary simulations were car…
When deposited on a hydrophobic rough surface, a small water drop looks like a small pearl. In this study we investigate the conditions to observe such a phenomenon when the roughness of the substrate, of fractal nature, consists of nanofeatures obtained by the ion track etching technique. The surface roughness was ch…
This paper reviews the main physical problems and the most important results related to the emission properties of carbon nanotubes (CNT) and cathodes on their basis. The phenomenon of electrical field amplification in the vicinity of a nanotube tip of various structures is studied quantitatively. The physical mechani…