Materials Literature
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For over 40 years impurities have been believed to stabilize the ceramic α-Si3N4 but there is no direct evidence for their identity or lattice location. In bulk materials electron microscopy can generally image heavy impurities. Here we report direct imaging of N columns in α-Si3N4 that suggests the presence of excess…
We have developed a novel method to grow thick single crystalline ZnO films for the use of supporting layers by employing nanorod-assisted epitaxial lateral overgrowth (NRELO). The NRELO ZnO films were epitaxially grown on vertically arrayed nanorods at reduced temperatures by metalorganic chemical vapor deposition. T…
In this work, a starch-based polymer, namely a blend of starch-poly(epsilon-caprolactone) was processed by supercritical assisted phase inversion process. This processing technique has been proposed for the development of 3D structures with potential applications in tissue engineering applications, as scaffolds. The u…
Cases are one of the most important types of furniture produced, yet relatively little research has been done on the case rigidity. In this study, types of the fastener properties to overall case rigidity were investigated along with the effect of material type and thickness on stiffness. A total of sixteen cases were…
The dielectric, ferroelectric, and piezoelectric properties of chemical solution deposited xBiInO3–(1−x)PbTiO3 (0.10≤x≤0.35) thin films on platinized silicon substrates were investigated. Using a PbTiO3 seed layer, phase pure xBiInO3–(1−x)PbTiO3 (0.10≤x≤0.35) thin films were prepared. For a 470 nm thick 0.15BiInO3–0.8…
The medium-voltage ASD stator insulation systems operate under greater stress than those using the sine-wave power. The repetitive short rise-time pulses generated by most ASDs cause an additional stress. The pulses are often increased by the effect of the cable between the ASD and motor. It is incumbent on the user a…
The photoinduced charge-transfer process in Rb(0.94)Mn[Fe(CN)(6)](0.98).0.2H(2)O is investigated by observing the valence states of the metal ions by Raman spectroscopy. The sample in the high-temperature phase is irradiated at the ligand to metal, CN(-)-->Fe(III) and charge-transfer band (lambda=395 nm). The Fe(III)-…
An analytical model is presented to describe the effect of carbon nanotube (CNT) swelling upon hydrogenation on the hydrogen storage capacity of single-walled CNT bundles; the model is properly parameterized using atomistic calculations for the relationship between CNT swelling and the degree of hydrogenation as measu…
The reversible proton dissociation and geminate recombination of a photoacid was studied in peptide-based hydrogels over a large concentration range of the self-assembled peptide nanotube (PNT) network. 8-Hydroxypyrene-1,3,6-trisulfonate trisodium salt (HPTS) was used as the photoacid. We found that the proton transfe…
The highly ordered anodic aluminum oxide (AAO) template was prepared with two-step anodization. The AAOtemplate was carried out wet etching process using a mixture of phosphoric acid and chromic acid, NaOH, and H3PO4solutions. The relationship between mass loss of AAO template and etching time was studied. The results…
Abstract The effect of nanoclay loading on the alteration of tensile and dynamic mechanical properties of aramid short fibre‐filled styrene butadiene rubber composites was investigated. In all the composites, 20 phr of N330 black was used. Dynamic mechanical thermal analysis was used to investigate the viscoelastic da…
A series of hexadentate ditopic receptors incorporating benzimidazole moieties have been designed, which are fitted with phosphonic acid or phosphoethylester coordinating units. In addition, poly(oxyethylene) pendants have been introduced on the benzimidazole backbone of two ligands to increase water solubility. The l…
Electrochemical reduction of a solid TiO 2 −ZrO 2 mixture (molar ratio = 1:1) to the TiZr alloys in a consolidated porous structure was studied by constant cell voltage electrolysis in molten CaCl 2 at 900 °C. For the first time, and surprisingly, it was found that tuning the α- and β-phases in the TiZr alloys could b…
The diatomic free radical nitric oxide (NO) plays a crucial role in many physiological functions including vasodilation, angiogenesis, and neurotransmission, as well as some immune responses. NO-mediated processes allude to the possibility that chemical systems capable of generating NO may provide useful therapeutic a…
We show that the high-molecular weight (HMW) protein aggregate of fish otolith matrix is involved in the regulation of crystal polymorphs during otolith biomineralization. Teleost fish otoliths are biominerals that contain calcium carbonate aragonite or vaterite crystals. In a previous study, we identified a novel pro…
This study presents an optically controllable fiber-optic attenuator consisting of side-polished fiber (SPF) with a photoresponsive liquid crystal (LC) overlay operating in the telecommunication wavelength. Attenuation is controlled by a photochemical-induced phase transition of photoresponsive LC, which modulates the…
Abstract Single‐walled carbon nanotubes (SWNTs) are a promising material for future nanotechnology. However, their applications are still limited in success because of the co‐existence of metallic SWNTs and semiconducting SWNTs produced samples. Here, electrochemical etching, which shows both diameter and electrical s…
Dissipative particle dynamics simulations of a mesoscale model are performed to investigate the concentration dependence of surfactant adsorption on small-diameter carbon nanotubes and their bundles. Adsorption is found to follow fundamentally different mechanisms in the two cases because of the heterogeneity of the b…
Novel flower-like vanadium carbide (V8C7) hierarchical nanocrystals have been successfully synthesized in a large-scale hydrothermal process using a mixture of diethanolamine (HN(C2H4OH)2, DEA) and V2O5 powder. The products were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FES…
Abstract Blends were made from linear low‐density polyethylene (LLDPE) and various amounts of soya powder. The soya powder content was varied from 5 to 20 wt%. Polyethylene‐ g ‐(maleic anhydride) (PE‐ g ‐MA) was used as a compatibilizer. Tensile strength and elongation at break (EB) decreased with increasing soya powd…