Materials Literature
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AND APPLICATIONS.The self-assembly technique is a powerful tool to fabricate ultrathin films from organic compounds aiming at technological applications in molecular electronics.This relatively new approach allows molecularly flat films to be obtained on a simple and cheap fashion from various types of material, inclu…
Unsaturated polyesters, based on ω-unsaturated fatty acid esters from oleochemical resources and petrochemical diols, were synthesized via two different synthetic pathways. 9-decenoic and 10-undecenoic acid methyl ester I a, b were transesterified with petrochemical diols to produce the α,ω-alkylene di(un)decenoates I…
The effect of interfacial reactions between Al and SiC on the thermal conductivity of SiC‐particle‐dispersed Al‐matrix composites was investigated by X‐ray diffraction and transmission electron microscopy (TEM), and the thermal barrier conductance ( h c ) of the interface in the Al–SiC composites was quantified using…
Wet hydrofluoric acid at concentrations below approximately 60% is highly corrosive to glass, reactive metals, carbon steel and stainless steels. Nickel alloys offer moderate corrosion resistance over a wide range of acid concentration and temperature. The corrosion behavior of eleven commercial alloys was quantified…
The effects of type and concentration of plasticizers on the mechanical properties and water vapor permeability (WVP) of edible films from fish water-soluble proteins (FWSP) were investigated. Among plasticizers investigated in the present study, glycerol and polyethylene glycol (PEG) gave the films flexible structure…
Conserved amino acid residues of riboflavin synthase from Escherichia coli were modified by site-directed mutagenesis. Replacement or deletion of phenylalanine 2 afforded catalytically inactive proteins. S41A and H102Q mutants had substantially reduced reaction velocities. Replacements of various other conserved polar…
In 2 O 3 doped with 5 wt% SnO 2 (indium-tin oxide(ITO)(5 wt%)) films have been deposited on glass and quartz substrates in a magnetic field generated from three pieces of rare–earth permanent magnets (1.25 T flux density) placed at every 120° angle to surround the plume produced by pulsed laser deposition using an ArF…
The effects of hydrostatic pressure on conjugated polymers, in particular polyphenyls (see Figure for monomer unit) have been studied using photoluminescence, absorption, photo-induced absorption, and Raman spectroscopy. The effect of pressure on the singlet and triplet excitons and polarons allows an understanding of…
We report p-channel metal-ferroelectric-metal-insulator-semiconductor (MFMIS)-field-effect-transistors (FETs) which can operate at a voltage as low as 3.5 V using Pt/SrBi 2 Ta 2 O 9 /Pt/SrTa 2 O 6 /SiON/Si structures. It is shown that the use of the saturated P – E hysteresis loop is effective to improve the data rete…
Abstract The Kübler Index (KI) is defined as the full width at half-maximum height (FWHM) of the 10-Å X-ray diffraction peak of illite-smectite interstratified (I-S) clay minerals. The only parameters controlling the Kübler Index are assumed to be the mean number of layers (N) in the coherent scattering domains (CSD),…
This study assesses the potential of waste heat thermoelectric power generation for diesel cycle and gas turbine cogeneration in the manufacturing industrial sector in Thailand. To this end, data from more than 27,000 factories from different sectors, namely, chemical product, food processing, oil refining, palm oil m…
Neutron reflectivity measurements on deuterated polystyrene (dPS) thin films reveal a strong dependence of the coefficient of thermal expansion (CTE) on both the thickness of the film and the specific confinement boundaries. A direct comparison is made between films on low energy, fluorinated polyimide (fPI) substrate…
An algorithm for solving the Maxwell equations for propagation of light through anisotropic stratified media is considered. The algorithm uses the Berreman matrices of order 4 × 4. In contrast to the numerical methods suggested by Berreman, the new method is exact. The Sylvester theorem for calculating functions of a…
The ultrasound (363 kHz) induced decomposition of a commercially available polydisperse nonylphenol ethoxylate surfactant (Teric GN9) has been investigated. The initial rate of decomposition was found to be a function of the monomer concentration of the surfactant below and above the critical micelle concentration. Ba…
We have demonstrated the integration of various morphologies generated by dynamic oblique deposition, during which the deposition angle and the azimuth of the substrate are varied. The layers with zigzag, helicoidal and cylindrical columns have been successfully stacked on a substrate without using any etching process…
Electrospinning is a unique process that is capable of producing fibers with diameters ranging over several orders of magnitude, from the micrometer range typical of conventional fibers down to the nanometer range. Electrospun fibers possess unusually large surface-to-volume ratios and are expected to display morpholo…
In the paper a digital technique for improving the accuracy of instrument current transformers is presented. Since the exciting current can be considered as the main error source, its evaluation can allow the compensation of its detrimental effects to be obtained. The exciting current required by the transformer in ev…
A measuring apparatus based on a phase shifting interferometry technique to determine the mechanical properties of metal oxide films was presented. Thin films were prepared by ion-beam sputter deposition at low substrate temperature. Quantitative determination of the mechanical properties such as the internal stress,…
Crystallographic and low frequency dielectric studies were performed on lead-free non-stoichiometric perovskite ceramics of Ba1—xBi2x/3□2x/3TiO3 (0 ≤ x ≤ 0.15) composition. A classical ferroelectric behaviour was shown for x lower than 0.09. A relaxor behaviour appears for higher values of x (0.09 ≤ x ≤ 0.15). The cor…
Calorimetric measurements were made on natural samples of heulandite having the composition Ca 0.86 Na 0.37 K 0.06 Al 2.14 Si 6.86 O 18 ·6.1H 2 O and stilbite Ca 1.01 Na 0.12 Al 2.12 Si 6.88 O 18 · 7.27H 2 O both from the same locality (Nidym River, E. Siberia, Russia). Enthalpies of formation and hydration were studi…