Materials Literature
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In this paper changes in the appearance of 100% cotton ring spun yarns due to several yarn-to-yarn abrasion cycles before rupture are characterized. Different pictorial indexes for four different yarn counts are evaluated. The process of abraded yarns is defined by image processing techniques. The comparison between t…
Lignocellulose represents a key sustainable source of biomass for transformation into biofuels and bio-based products. Unfortunately, the recalcitrance of lignocellulosic biomass poses a major challenge for its sustainable and cost-effective utilization. Overcoming the recalcitrance is therefore an important priority…
Poly(ethylene terephthalate) (PET)/clay, PET/poly(ethylene glycol‐co‐1,3/1,4‐cyclohexanedimethanol terephthalate) (PETG), and PET/PETG/clay nanocomposites were fabricated using the twin‐screw extrusion technique. The spherulitic morphologies, thermomechanical, mechanical, and gas‐barrier properties, as well as the eff…
Low-melting zinc-borate glass was added to the cordierite/Al2O3 composite in order to improve the sintering facility of Al2O3 and formation of nano-sized spinel crystal of high thermal conductivity. Increasing the ZnO/B2O3 ratio in the zinc-borate glass increased the ZnAl2O4 spinel and decreased the Al4B2O9 crystal pe…
A facile approach was employed for the preparation of stable luminescent nanocomposites of CdS quantum dots (QDs) and polyacrylamide (PAM) through the cross coupling chemistry. Initially, CdS QDs were synthesized in a well controlled manner using 3-mercaptopropionic acid as a capping agent. Then, carboxylic acid group…
Semiconducting carbon nanotubes (CNTs) are considered as one of the most promising candidates to replace silicon in future nano-electronics. Single-walled carbon nanotubes (SWNTs) have been used as an active channel material in field-effect transistors (FETs). The nanotube-based circuits show great potential in future…
ABSTRACT Poly(o‐phenylenediamine) (PoPD) film has been electrochemically prepared on Pt electrode in an acetonitrile–water medium containing o‐phenylenediamine (oPD) monomer and (±)‐10‐camphorsulfonic acid (HCSA) by using the cyclic voltammetry (CV). The PoPD film (PoPD–CSA) has been characterized by FTIR, CV, EIS, FE…
The magnetoelectric (ME) effect in a piezoelectric/piezomagnetic (PE/PM) composite cylinder, which is induced by a torsional deformation, is investigated. Both the PE and PM layers are circumferentially polarized. For a specific applied magnetic field, the displacement component in the PM layer is analytically present…
ABSTRACT Not much effort has been focused towards the development of hydrogels that swell in nonpolar solvents. We have synthesized a new set of polyelectrolyte hydrogels and demonstrated their ability to absorb a less‐polar or nonpolar organic solvent, as well as their ability to resist gel‐collapse in a predominantl…
Abstract BACKGROUND As the strongest natural estrogen, 17β‐estradiol (E2) which occurs in water through drainage of municipal and industrial wastewater treatment plants, may represent a serious health risk to humans, even at extremely low concentrations (ng L‐1). To reduce the amount of E2 in an aqueous system, KMnO4‐…
The possibility of refining the grain structure of a commercial Al-Mg-Si alloy was evaluated using asymmetric rolling (ASR) and accumulative roll bonding (ARB) in the severe plastic deformation (SPD) regime. Bars of annealed alloy having a thickness of 10 mm were asymmetrically rolled down to a thickness of 0.23 mm wi…
Gut in Form: Filme von hochverzweigten Polycumaraten können unter Einstrahlung von UV-Licht eine reversible [2+2]-Cycloaddition eingehen und verhalten sich wie photomechanische Elastomere. Ausgehend von der Form A werden die photonisch und thermisch gespeicherten Formen B und C erhalten. Durch Bestrahlen mit Licht kan…
Rare earth (RE)-doped lanthanide vanadate phosphors for multicolor display applications were synthesized with different activator ions by using a solid-state reaction method. The effects of activator ions on the structural, morphological, and optical properties of lanthanide vanadate phosphors were investigated. X-ray…
Substructure characteristics in hot worked Alalloys are very important for modelingmechanical properties during hot forming,and also in the product. In contrast to simplegrain shape in etched-optical microscopy(EOM), polarized optical microscopy (POM)significantly confirmed subgrain presence inbetter detail than x-ray…
This article has been retracted.
Cu2ZnSnS4 (CZTS) thin film applicable to an absorber material in compound thin film solar cells was deposited by a single quaternary sputtering target containing four components--Cu, Zn, Sn, and S-and its material properties were investigated. A single quaternary sputtering target was fabricated by sequential powder m…
This study investigates the grafting of poly-sodium styrene sulfonate (pNaSS) from trichlorosilane/10-undecen-1-yl 2-bromo-2-methylpropionate functionalized Si and Ti substrates by atom transfer radical polymerization (ATRP). The composition, molecular structure, thickness, and topography of the grafted pNaSS films we…
The performance of dual-zone structured catalytic reactors in natural gas steam reforming under typical commercial operating conditions is evaluated by means of detailed Computational Fluid Dynamics (CFD) simulations, including detailed reaction kinetics. A hybrid CFD model is developed, combining a porous medium type…
Polymer- und Komposit-Mikropartikel können ohne Lösungsmittel oder Prozessflüssigkeiten durch die Nutzung superamphiphober Oberflächen synthetisiert werden. In dieser Methode werden die abweisenden Eigenschaften superamphiphober Schichten gegenüber Monomeren und Polymerschmelzen und die extrem niedrige Haftung von Par…
Here we report direct observations of spatial movements of nanodroplets of Pb metal trapped inside sealed carbon nanocontainers. We find drastic changes in the mobility of the liquid droplets as the particle size increases from a few to a few ten nanometers. In open containers the droplet becomes immobile and readily…