Materials Literature
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The pressure dependence of the crystal and molecular structure of the bis-1,2,3-thiaselenazolyl radical dimer [ 1b ] 2 has been investigated over the range 0–11 GPa by powder diffraction methods using synchrotron radiation and diamond anvil cell techniques. At ambient pressure, the dimer consists of a pair of radicals…
Crystallization behaviour of polylactic acid/cellulose (PLA/CELL) and linear low-density polyethylene/cellulose (LDPE/CELL) composites was studied by differential scanning calorimetry (DSC) and polarized light microscopy equipped with hot-stage. The effect of addition of cellulose on thermal properties of PLA/CELL and…
We report the electrical, magnetic, and thermal properties of the \ensuremath{\delta}-FeZn${}_{10}$ phase in the zinc-rich domain of the Fe-Zn system. The \ensuremath{\delta}-FeZn${}_{10}$ phase possesses high structural complexity typical of complex metallic alloys: a giant unit cell comprising 556 atoms, polyhedral…
Sodium-montmorillonite (Na + -MMT) was intercalation modified with octadecyl trimethyl ammonium chloride (OTAC) in aqueous suspension via an ion exchange mechanism. Fourier transform infrared spectroscopy (FTIR) study indicates that OTAC is successfully intercalated into Na + -MMT layers and/or adsorbed on the surface…
In this work, we report on utilization and optimization of the focused-ion-beam technique for the fabrication of nanostructures on Al 2 O 3 waveguides for applications in integrated photonic devices. In particular, the investigation of the effects of parameters such as ion-beam current, dwell time, and scanning strate…
Abstract This trend article describes some recent work related to the development of flame retardancy of six common plastic materials, polypropylene, polystyrene, poly(methyl methacrylate), unsaturated polyester, polyurethane, and epoxy resin. Conventionally, a single fire retardant element is used to achieve fire ret…
The application of porous silicon as a template for the fabrication of nanosized copper objects is reported. Three different types of nanostructures were formed by displacement deposition of copper on porous silicon from hydrofluoric acid-based solutions of copper sulphate: (1) copper nanoparticles, (2) quasi-continuo…
Abstract Manufacturing strategy is of prime importance for the appropriate incorporation of filler into a polymeric matrix, and this in particular refers to nanofillers. Herein, direct‐graphite nanoplatelets are used as filler in polystyrene. The as‐received filler material contained microscopic size agglomerates form…
Nanocomposites of high performance polyimide and modified multiwalled carbon nanotube were prepared via in situ polymerization technique. Neat fluorinated polyimide was synthesized from the reaction between 4,4′-(hexafluoroisopropylidene) diphthalic anhydride and 2-(3,5-diaminophenyl)-benzimidazole. Polyimide/modified…
We report the inelastic neutron scattering study of spin dynamics in EuCu(2)(Si(x)Ge(1-x))(2) (x = 1, 0.9, 0.75, 0.6), performed in a wide temperature range. At x = 1 the magnetic excitation spectrum was found to be represented by the double-peak structure well below the energy range of the Eu(3+) spin-orbit (SO) exci…
Polyaspartic acid (PASP) has important roles in scale decentralisation, scale inhibition and corrosion inhibition. Investigation on the microscopic interaction between PASP and calcium carbonate (CaCO3) will be helpful for understanding its scale inhibition mechanism and can provide a theoretical guidance to developin…
We present the high pressure dielectric spectroscopy (up to 4.2 GPa) and ultrasonic study (up to 1.7 GPa) of liquid and glassy propylene carbonate (PC). Both of the methods provide complementary pictures of the glass transition in PC under pressure. No other relaxation processes except α-relaxation have been found in…
New approaches that allow precise spatiotemporal control of gene expression in model organisms at the single cell level are necessary to better dissect the role of specific genes and cell populations in development, disease, and therapy. Here, we describe a new optochemogenetic switch (OCG switch) to control CreER/lox…
Noble-metal-free functional oxides are active catalysts for CO oxidation at low temperatures. Spinel-type cobalt oxide (Co 3 O 4 ) nanoparticles can be easily synthesized by impregnation of activated carbon with concentrated cobalt nitrate and successive carbon burn off. Mean size and particle size distribution can be…
Effect of normal load and sliding distance on the room temperature dry sliding wear behavior of a Ti-50.3 at% Ni alloy against a bearing steel was studied. The wear tests were conducted using a pin-on-disk tribometer under normal loads of 20, 40, 50, 60 and 80 N for sliding distances up to 1000 m. The wear results sho…
Fully bleached kraft bamboo pulp (BPFs), fully bleached kraft softwood pulp (SPFs), and bleached cotton linter pulp (CPFs), which have different crystallinities, were oxidized in the TEMPO-NaBr-NaClO system with ultrasonic treatment for producing nanocrystals. The carboxylate content of nanocrystals made from BPFs, SP…
This paper presents potential carbon nanoelectronic applications in battery-powered mobile devices such as mobile phones and laptop computers. Based on the physical behavior of carbon nanotubes (CNTs) and graphene and the specific requirements for portable consumer electronic devices, the main challenges and restricti…
Abstract Porous MgTi 2 O 5 ceramics with pseudobrookite‐type structure have been prepared by in situ processing (viz. reactive sintering). In this communication, further studies have been carried out in order to evolve the porous MgTi 2 O 5 , viz., (1) X‐ray absorption fine structure (XAFS) study of porous MgTi 2 O 5…
A series of bismaleimide monomers (BMI) with various structures containing flexible linkages was prepared and structural characterization of these compounds was carried out by elemental analysis, Fourier transform infrared spectroscopy, and 1H−NMR spectroscopy. The thermal behavior of these monomers (BMI(1–4)) was inv…
Abstract A diffusion‐driven mineralization approach for the fabrication of calcium carbonate on and in regenerated and functionalized cellulose membranes was investigated. Calcium dichloride was used as the cation source. Ammonium carbonate was applied in a gas‐phase diffusion and sodium carbonate in a liquid continuo…