Materials Literature
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A sol-gel method has been developed for the synthesis of composite materials analogous to the previously reported and commercialized silica polyamine composite (SPC) materials made from amorphous silica. Monolithic xerogels were formed using a two-step procedure with no templating agent using acid catalyzed followed b…
Abstract Polyamide (PA) fabric loaded with magnetite (Fe 3 O 4 ) nanoparticle film was prepared by a simple chemical coprecipitation method. The surface morphology, chemical and phase constituents, crystalline structure, magnetic behavior, thermal stability, and mechanical properties of the Fe 3 O 4 ‐coated fabric wer…
In the present work, we have studied the effect of Fe composition on the superconducting properties, such as transition temperature (Tc), upper critical field (Hc2), and irreversibility field (Hirr) of FeSe1/2Te1/2. The polycrystalline samples have been prepared via solid state reaction route with nominal compositions…
The electronic, physical and optical properties of single-walled carbon nanotubes (SWNTs) are governed by their diameter and chirality, and thus much research has been focused on controlling the diameter and chirality of SWNTs. To date, control of the catalyst particle size has been thought to be one of the most promi…
Thin film Bi 2 Te 3 /Sb 2 Te 3 multilayers are thought to possess a high thermoelectric figure of merit. Our work describes how multilayers can be fabricated using electrodeposition, an inexpensive and scalable synthesis route. We address the challenge of simultaneously maintaining satisfactory stoichiometry, crystall…
Silica nanotubes with mesopores perforating the wall were synthesized on the channel surface of porous anodic alumina (PAA) or polycarbonate membranes via interfacial growth. Transmission and scanning electron microscopy characterizations indicated that the mesopore orientation can be regulated from perpendicular to t…
The highly luminescent bimetallic cyanide materials, Gd(terpy)(H(2)O)(NO(3))(2)M(CN)(2) (M = Au, Ag; GdAu and GdAg, respectively) are quick and easy to synthesize under ambient conditions. A characteristic feature exhibited by both solid-state compounds is an intense red emission when excited with UV light. Additional…
High energy diffraction microscopy is used to measure the crystallographic orientation and evolution of lattice strain in an Al Li alloy. The relative spatial arrangement of the several pancake-shaped grains in a tensile sample is determined through in situ and ex situ techniques. A model for crystal plasticity with c…
[100]-oriented KTa 1− x Nb x O 3 ( x =0.32) relaxor ferroelectric crystals have been studied by acoustic emission (AE) count rate in the temperature range from 200 K to 700 K. Burns temperature T d =620 K ( = 1.7 −1 ) and intermediate temperature T * =310 K ( = 3.1 −1 ) as well as both the tetragonal-cubic T T-C =259…
Quantum oscillations in the linear chain of coupled orbits: The organic metal with two cation layers θ-(ET)4CoBr4(C6H4Cl2), Audouard, A., Fortin, J.-Y., Vignolles, D., Lyubovskii, R. B., Drigo, L., Duc, F., Shilov, G. V., Ballon, G., Zhilyaeva, E. I., Lyubovskaya, R. N., Canadell, E.
Abstract Zinc oxide is a widely used compound in the rubber industry due to the excellent properties that it shows as activator, and consequently, its role in the mechanism of accelerated sulfur vulcanization has been extensively studied. Due to the increased concern about its environmental effects, several research s…
Abstract To investigate the interfacial compatibility of wood flour/polypropylene (PP) composite, compressive stress relaxation curves at different temperatures (26, 40, and 60°C) were determined at various wood contents (0, 20, 30, 40, 50, 60, and 70%) without coupling agent and further determined at wood contents of…
A variety of nanowires can be grown in a tube furnace via the transport of evaporated species by a carrier gas toward substrates. The insufficient understanding and the resulting limited control typical for this research area motivated us to systematically study the distribution of the growth species in such processes…
We studied the nucleation and growth of nano‐sized crystals on two glass‐ceramic systems: a conventional lithium‐aluminosilicate ( LAS ) and a ( M g, Z n) spinel. We combined several techniques: in situ Small Angle Neutron Scattering ( SANS ), Differential Scanning Calorimetry ( DSC ), Scanning Electron Microscopy ( S…
Internal elastic strains and textures are measured using monochromatic x-ray diffraction in -Fe plastically deformed up to 17.5 GPa and 600 K in the deformation-DIA. We observe the development of a strong 0 0 0 1 compression texture along with a strongly non-linear behavior of 0 0 0 2 lattice strains. We then use an e…
The crystal structure of the inclusion complex of β-cyclodextrin with lipoic acid was determined from laboratory powder diffraction data. Thermogravimetric data was used to estimate the number of water molecules in the crystal structure. Lipoic acid is included in β-cyclodextrin through its primary face with the five-…
Zein is a hydrophobic protein produced from maize and has great potential in a number of industrial applications such as food, food coating and food packaging. The objectives of this study are to determine the effects of montmorillonite on the wettability and microstructure properties of zein/montmorillonite nanocompo…
The nature of the repulsive Coulomb barrier in isolated molecular polyanions is studied by means of the photodetachment dynamics of the S(1) excited state of the fluorescein dianion which is bound solely by the repulsive Coulomb barrier. Photoelectron spectra reveal a feature at a constant electron kinetic energy, reg…
Sheets of single-layer carbon with a variety of bonding patterns may have properties similar to the wonder material graphene, according to new computer simulations.
Electrospinning is a well-known process for producing submicrometer fibers, which have wide applications in many fields, especially in tissue engineering scaffolds and drug-delivery systems. This paper presents the formation of drug-loaded electrospun twin fibers. The correlations between the twin fiber formation and…