Materials Literature
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The intense interest in nanocomposites in the last few years results from the documented enhancements in mechanical, thermal and electrical properties that are possible when particulates of nanometric scale are embedded in a polymer matrix. It has become clear that the primary reason for these improvements is the domi…
Palladium (Pd) has been widely employed for conventional hydrogen sensors due to the catalytic nature. Pd has been incorporated also with carbon nanotube (CNT) gas sensors for hydrogen sensing. In this study, a liquid-phase electrochemical reaction was proposed to realize a simple and inexpensive fabrication method of…
Myelin-like instabilities usually form from the interface of amphiphilic lamellar phases and solvent, and resemble the neuron-like structures in nerve systems. However, these myelin structures are thermodynamically unstable. We herein present our first success in synthesizing stable myelin figures separated organized-…
In recent years, low cost composites made from plant oil sources proved of interest for dielectric applications, showing also some potential for future application as dielectric in microchips and circuit boards. In this work, the dielectric properties of oil palm/natural rubber composite materials were characterized.…
We have developed highly functional bioplastics (biomass-based plastics), polylactic acid composites, which improve the environmental friendliness of electronic products. A kenaf-fiber-reinforced polylactic acid has high heat resistance, high impact strength, and good moldability, and its use in PC parts and mobile ph…
The trap distribution in thin aluminum oxide films was modified electrochemically and subsequently quantified in a solid-state device. A combined potentiodynamic/potentiostatic experiment enabled preparation of samples showing different trap distributions with negligible thickness variation. Potentiodynamic oxide form…
Anodic polarization testing of SUS304 stainless steel was carried out in an aqueous solution of 3.5 mass% NaCl at a potential increasing at a constant rate of 20 mV/min. When the current density reached 2, 10 or 50 A/m2 within the pitting corrosion region, the potential was kept at a constant value for 600 s at each c…
The life of creep crack growth for W-strengthened 9–12%Cr steel is sensitive to the alloying additions and to differences in material microstructure, such as lath martensitic structure and grain size caused by differences in cooling rates in the steel ingots during the manufacturing process, which results in the large…
The effect of coextrusion on the microstructure of polypropylene (PP) and low-density polyethylene (LDPE) bilayer films was investigated by the use of Raman spectroscopy. The onset crystallization-time difference for PP versus LDPE components is an important parameter that controls the orientation and morphology of th…
Dear Sir,Transmission electron microscopy (TEM) continues to play a critical role in diagnostics; [[1]] however, due to a combination of economic and staffing issues, diagnostic TEM is currently at...
The etching damage induced by energy-controlled oxygen ion beam exposure on diamond was observed using electron spin resonance (ESR) and X-ray photoelectron spectroscopy (XPS). The ion energy was controlled by an extraction voltage ( V ext ) ranging from 25 to 500 V. Oxygen ion beam exposure gives rise to a highly def…
The alloying design of the cast hot-forging die steels was analyzed. The key property and parameters for the alloying design were selected. The cast hot-forging die steel with high wear resistance was developed through optimizing the parameters. The wear resistance of the newly-developed cast die steel was evaluated i…
Abstract The Molecular Dynamics simulations in chloroform at room temperature of the monomer and dimer of the molecular system based on bisphenol‐A diglycidyl ether with a p ‐nitroaniline ( PNA ) chromophore attached to the bearing chain is performed. The starting conformations for the simulation were obtained by the…
The {101} transformation twinning bands in Mn–Cu alloys are considered to be the dominant microstructural feature contributing to the high damping capacity of the alloys. Because the face-centered-tetragonal (fct) phase of Mn–Cu alloys has an axis ratio (c⁄a) of nearly 1, an angular resolution for Kikuchi diffraction…
A simple and efficient solution for coupling a collimated light beam into a thin light guide is presented. The approach is based on two gratings, with their grating lines perpendicular to each other, fabricated into the opposite surfaces of the light guide. The presented numerical simulation shows that an optimized do…
Reaction of [5]lithiotrovacene (TVC-Li) with tin dichloride affords the triradical complex (THF)(3)Li(+)[(TVC)(3)SnCl(2)](-) which was characterized by X-ray crystallography, cyclic voltammetry, EPR spectroscopy and magnetic susceptometry; redox splittings deltaE(1/2) ("electrocommunication") and the exchange paramete…
Four ethylene vinyl acetate (EVA) co-polymers with different vinyl acetate (VA) contents (9–20 wt%) were treated with corona discharge to improve their adhesion to polychloroprene (PCP) adhesive. The thermal properties of the EVAs decreased as their VA content increased, caused by a decrease in crystallinity. The elas…
Recently the measurement of residual charge has been studying as insulation deterioration diagnosis of XLPE insulated cables. Authors have studied the measurement process and the charge characteristic. The specimens are XLPE sheets of 1mm which are degraded with water-trees. There are four processes of charge removal,…
In this study, the relation of the anodic potential vs processing time was recorded for the anodizing of an Al 1050 aluminum sheet in a sulfuric acid solution. The electrochemical behavior of aluminum during the anodizing treatment can be characterized by measuring the anodic potential-time curves. The nanostructure o…
This work presents the development of an analytical model for the simulation of solid oxide fuel cells (SOFCs). The unique features of the analytical code include Stefan–Maxwell–Knudsen diffusion of five-component gas mixtures ( H 2 , CO, C O 2 , H 2 O , and C H 4 ) as fuel and of air as comburent, microdiffusion to t…