Materials Literature
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Nanoindentation is used to study the mechanical properties at the nanoscale of the ternary Agx(As0.33S0.67)100−x glassy system for 0 ≤ x ≤ 25. Direct evidence for phase separation of a Ag-poor and a Ag-rich phase in the composition range 2 ≤ x ≤ 20 is provided. The volume of the Ag-rich phase increases with x and perc…
We describe a photoresponse measurement study on a pyrene linked ZnS nanoparticles decorated single walled carbon nanotube (SWNT) field-effect transistor (FET). We observed that the photocurrent response in the system is based on the semiconducting property of the SWNT. It was found that both the organic molecule link…
ABSTRACT The aliphatic‐aromatic copolyesters are becoming more important due to their desirable mechanical properties and biodegradability. In this study, a series of Poly(butylene succinate‐co‐terephthalate) (PBST) of various monomer compositions were synthesized from succinic acid (SA), dimethyl terephthalate (DMT),…
Pb0.4Sr0.6TiO3 (PST) thin films were deposited on high resistivity silicon substrate by radio frequency magnetron sputtering. A pure perovskite phase was obtained at a low post annealing temperature of 650 °C. The relative dielectric constant, loss factor, tenability, and figure of merit were determined over a large f…
The helical flexoelectro-optic effect shows interesting in-plane electro-optic switching behavior due to flexoelectric coupling with applied electric fields. Previous understanding of the behavior has been generally based on an analytic approach that makes certain assumptions about the uniformity of the helical struct…
It is shown that the Mott criterion expressed by the simple relation a B(n c)1/3 ≈ 0.25 turns out to be quite successful in describing metal–insulator phase transitions not only in heavily doped semiconductors, but also in transition metal oxides such as VO2 and V2O3. It is found in this article that, in the case of a…
Abstract Multilayer films consisting of a core layer of nylon 6 sandwiched between two linear low‐density polyethylene layers were produced using a semi‐industrial cast film extrusion line. The core film was produced at different draw ratios from neat nylon and nylon/clay nanocomposite resins. The objective was to ass…
[1] Partial melting is an important geological process that affects physical, chemical and rheological properties of rocks. Here, atomic scale simulations are used to study the structure and transport properties of ultrathin melt films between olivine grains, which is a simple model system of a partially molten perido…
Using a quantitative phase-field model, a systematic investigation of cellular growth in directional solidification is carried out with emphasis on the selection of cellular tip undercooling, tip radius, and cellular spacing. Previous analytical models of cellular growth are evaluated according to the phase-field simu…
The concept of elastic domains is extended to heterophase ferroelectric epitaxial films undergoing phase transformation. Equilibrium nanostructure of ferroelectric phases forming heterophase polydomains, including their relative domain fraction, the distortion of phases, and the orientation of domain interfaces, is de…
A novel solid oxide fuel cell (SOFC)/gas turbine (GT) hybrid cycle system with CO2 capture is proposed based on a typical topping cycle SOFC/GT hybrid system. The H2 gas is separated from the outlet mixture gas of SOFC1 anode by employing the advanced ceramic proton membrane technology, and then, it is injected into S…
The plasmonic 2D W-shape and 3D inverted pyramidal nanostructures with and without the tips are studied. The effects of the tip height and tip tilt angle on the near field enhancement and far field radiation pattern are discussed in this paper. The localized hot spots are found around the pits and the radiation patter…
The nonlinear dielectric properties of BiFeO3 ceramics as a function of temperature were investigated. The present results demonstrate a high dielectric tunability in quite low range of the bias electric fields over a broad temperature interval around the room temperature. The non-linear permittivity-field response re…
Ultrasound (20 kHz, 29 W·cm(-2)) is employed to form three types of erbium oxide nanoparticles in the presence of multiwalled carbon nanotubes as a template material in water. The nanoparticles are (i) erbium carboxioxide nanoparticles deposited on the external walls of multiwalled carbon nanotubes and Er(2)O(3) in th…
TiO(2) anatase thin films grown by pulsed laser deposition are investigated by high resolution transmission electron microscopy and high angle annular dark field scanning transmission electron microscopy. The analyses provide evidence of a peculiar growth mode of anatase on LaAlO(3) and SrTiO(3) characterized by the f…
Ag 2 S nanorods and nonoparticles have been successfully prepared using chemical method. Silver nitrate with molar concentration of 0.1 M and thiourea with different molar concentration were used as a source of Ag ++ and S ++ ions, respectively. The pH of solution was in range of 10-11. Scanning electron microscopy (S…
Deuteration of macromolecules is an important technique in neutron protein crystallography. Solvent deuteration of protein crystals is carried out by replacing water (H(2)O) with heavy water (D(2)O) prior to neutron diffraction experiments in order to diminish background noise. The effects of solvent deuteration on th…
We determined experimentally the complex transient optical dielectric function of a well-characterized polyelectrolyte/gold-nanoparticle composite system over a broad spectral range upon short pulse laser excitation by simultaneously measuring the time-dependent reflectance and transmittance of white light pulses with…
Nonlinear free and forced oscillation of microscale simply supported beams is investigated in this paper. Introducing a material length scale parameter, the nonlinear model is conducted within the context of non-classical continuum mechanics. By using a combination of the modified couple stress theory and Hamilton’s p…
Finding on the one-dimensional purified aligned carbon nanotubes (ACNT) was prepared using botanical hydrocarbon: camphor powder in a two-stage catalytic chemical vapor deposition will be presented. For the first time, the hydrocarbon source and catalyst were patterned in different alumina boats in the system. The gro…