Materials Literature
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A solid solution of lead zirconate–lead nickel niobate ceramics, Pb[Zr 1− x (Ni 1/3 Nb 2/3 ) x ]O 3 (PZNN) with x = 0.0–0.5, was synthesized via the columbite precursor method. The crystal structures as well as the thermal and dielectric properties were investigated in terms of the lead nickel niobate (PNN) concentrat…
An organic/inorganic nanocomposite of polyethylene (PE) was prepared by compounding techniques. Uniform mono-dispersed spherical MCM-41 nano-particles were modified with polyethylene (PE) prepared by in situ Ziegler—Natta polymerization. The catalyst was first supported on the surface or in the mesopores of MCM-41 par…
A variety of x-ray techniques is employed to investigate sol-gel-synthesized Co- and Mn-doped ZnO films. X-ray diffraction (XRD) shows that the dominant structure is the c -axis orientated wurtzite ZnO. Dopant K-edge extended x-ray absorption fine structure (EXAFS) and x-ray absorption near edge structure (XANES) indi…
Abstract The chelation behavior of poly(2‐hydroxy‐4‐acryloyloxybenzophenone) [poly(2H4ABP) or polymer I ] obtained through the free‐radical polymerization of 2‐hydroxy‐4‐acryloyloxybenzophenone monomer and for crosslinked polymers prepared from the monomer and known amounts of the crosslinker divinylbenzene (DVB) [4 m…
Collagens constitute a large family of extracellar matrix proteins in humans and mammals that provide a structural framework for tissues. A number of hereditary connective tissue diseases are associated with mutations in collagens, including Osteogenesis imperfecta (OI). Collagen-like peptides were synthesized with al…
Si microwell arrays containing Pt–Pd thin film were fabricated by the chemical etching of a Si substrate through a polystyrene honeycomb mask using a patterned metal catalyst. The honeycomb mask, which was formed by the utilization of binary colloidal crystals composed of large silica spheres and small polystyrene sph…
Abstract To produce polyethylene–octene elastomer foams with compression molding, the influences of various activators on the thermal decomposition temperature of the chemical blowing agent azodicarbonamide were investigated with thermogravimetric analysis, which showed that the decomposition temperature of azodicarbo…
Purpose The purpose of this paper is to illustrate the usefulness of inhibitors for the prevention of localised corrosion of carbon steel in a low‐aggressive medium. The efficiencies of two inorganic non‐toxic inhibitors are compared, associated with an oxidant. Design/methodology/approach Many experiments were conduc…
This paper reports on a detailed magnetotransport investigation of the magnetic anisotropies of (Ga,Mn)As layers produced by various sources worldwide. Using anisotropy fingerprints to identify the contributions of the various higher-order anisotropy terms, we show that the presence of both a [100] and a [110] uniaxia…
Abstract The tensile properties of jute make it a suitable raw material for asphalt overlay (A/O) fabric. In this study, the thermal stability of jute under conditions of asphalt overlaying process was investigated and the compatibility of jute with asphalt was assessed through experimentation on jute–asphalt composit…
We report on a systematic study of local structural, magnetic and magneto-optical properties of Mn-doped SiC films synthesized on a 3C–SiC(001) homoepitaxial wafer by an annealing method. A thin Mn layer was deposited on the SiC wafer, and then annealing was performed to diffuse the Mn atoms into the SiC epitaxial lay…
Abstract Binary and ternary blends of PC, ABS, and PMMA were studied. The blends were produced from original and recycled materials by melt mixing in a wide range of compositions. Instrumented Charpy impact testing, tensile testing, rheology investigations, and electron microscopy were carried out to determine the rel…
We demonstrate a robust frustration-driven charge order to superconductivity transition in the half-filled negative-$U$ extended Hubbard model. Superconductivity extends over a broad region of the parameter space. We argue that the model provides the correct insight to understanding unconventional superconductivity in…
Abstract Octa(maleimidophenyl)silsesquioxane (OMPS) was synthesized, characterized, and employed to modify the BT resin which composed of 4,4′‐bismaleimidodiphenylmethane (BMI) and 2,2′‐bis(4‐cyanatophenyl)propane (BCE). The curing reaction between OMPS and BT resin was first investigated. It was found that OMPS accel…
0.98[(K0.4725Na0.4725Li0.055)NbO3]–0.02Ag(Ta1−xSbx)O3 lead-free piezoelectric ceramics were prepared by the conventional mixed-oxide method. The effects of the Sb content on the microstructure and the electrical properties of the ceramics were systematically investigated. The experimental results show that Sb strongly…
The conjugate residual with optimal trial vectors (CROP) algorithm is developed. In this algorithm, the optimal trial vectors of the iterations are used as basis vectors in the iterative subspace. For linear equations and nonlinear equations with a small-to-medium nonlinearity, the iterative subspace may be truncated…
A series of Au/MgO x −TiO 2 with various Mg/Ti molar ratios was prepared to study its catalytic activity for preferential oxidation of carbon monoxide in hydrogen-rich stream (PROX). An incipient wetness impregnation method was used to prepare the MgO x −TiO 2 support, using aqueous solutions of Mg(NO 3 ) 2 on TiO 2 c…
Highly ordered mesoporous Ni nanowires were synthesized by Ni electroless plating on the amine-functionalized SBA-15 (NH 2 −SBA-15) support, followed by removing the silica template with NaOH. The incorporation of amine groups into the pore channels and the subsequent activation of NH 2 −SBA-15 with PdCl 2 acetone sol…
Nanocomposites of Ru-doped cobalt−zirconia (20 wt % Co) were made by rapid and scalable flame spray pyrolysis (FSP). They were characterized by nitrogen adsorption, X-ray diffraction, electron microscopy, and X-ray photoelectron spectroscopy revealing that cobalt clusters were highly dispersed within the zirconia matr…
Gypsum (CaSO(4)center dot 2H(2)O) dehydration kinetics were investigated through energy dispersive X-ray diffraction (EDXD), under reduced pressure (100 Pa), in the temperature range 313-353 K. The process follows the JMAK (Johnson-Mehl-Avrami Kinetic) model. The fitting procedure of the Arrhenius expression provides…