Materials Literature
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The electrical resistivity of liquid alkali metals was calculated using the extended Ziman formula. The possible role of Fermi surface (FS) inflation–deflation (ID) was examined. The calculations reveal that replacing the sharp free electron FS by the expanded (respectively, contracted) one substantially improves the…
A new concept is suggested that serves to explain the effects of thermomagnetic treatment. Its validity is proved via measurements of magnetic properties and electron microscopy examination of structure of soft magnetic materials after different treatments. This concept allows one to consciously choose the treatment m…
Titanium (Ti) plates were firstly treated to form various types of oxide layers on the surface and then immersed into simulated body fluid (SBF) to evaluate the apatite forming ability. The surface morphology and roughness of the different oxide layers were measured by atomic force microscopy (AFM), and the surface en…
Fuel cells coupled with biomass gasifiers can offer the potential of highly efficient and renewable power generation in an environmentally friendly and CO2-neutral manner. Three key aspects, i.e. the fuel resources and fuel cell types as well as gas cleaning for this combined system were discussed to present the feasi…
Characteristics of Copper Spiral Inductors Utilizing FePt Nanodot Films, Jeong, Woo-Cheol, Kiyoyama, Kouji, Lee, Kang-Wook, Noriki, Akihiro, Murugesan, Mariappan, Fukushima, Takafumi, Tanaka, Tetsu, Koyanagi, Mitsumasa
We have investigated field-effect transistor (FET) application on the photo-irradiated C60 thin film. Carrier mobility can be estimated to be 3.5 X 10-4 cm2/Vs after photo-irradiation and it shows a lower mobility than that before irradiation. Probably, it would be due to introduction of many cracks in the C60 thin fi…
β-SiC nanowires have been synthesized on etch-patterned wafers in a chemical vapor deposition (CVD) system without using any metal catalyst. The nanowires were grown selectively inside the ‘V-groove’ of etch-patterned silicon (110) substrate which was used as a template for nanostructure growth. Nanowire growth was ha…
The soluble fraction of collagen fibres from rat tail tendon was analyzed by molecular sieve chromatography. The chromatograms obtained contained 3 peaks which were shown by polyacrylamide gel electrophoresis, to represent the γ, β- and α- components of soluble collagen. The age changes in tail tendon collagen appear…
C 60 -based materials such as FNWs and FNTs are new candidates for organic electronics and solar cells. Recently, a method to produce vertically-aligned fullerene microtube crystals (VFMTs) has been established. The VFMTs are exepected to be used as field emission devices, solar cells, fuel cells, and so forth. To rea…
Laboratory experiments are conducted to determine the liquid–liquid phase separation behavior of six three-component systems with each system comprised of a common alcohol (namely ethanol, isopropanol, or methanol), water, and one of two engineered dense nonaqueous phase liquids (DNAPLs) manufactured by the 3M™ Corpor…
Microwave chemically vapour-deposited (MWCVD) diamond films have been successfully used in dosimetric applications including radiotherapy and industrial dose assessments. The thermoluminescence (TL) properties and dose response, in a suitable MWCVD diamond film thermoluminescent dosimeter, should be independent of the…
High-intensity focused ultrasound (HIFU) fields are known to nucleate and excite inertial and noninertial cavitation in tissue and tissue-mimicking materials once a threshold negative acoustic pressure is reached. In the context of ablative HIFU treatment, inertial cavitation has been correlated with significantly enh…
Intra- and intermolecular association in deuterotoluene of ionomers based on sulfopolystyrene with varied content of sulfonate groups (SO 3 H) was studied by cold neutron scattering. The structural features of the primary associates were revealed, and their capability for mutual penetration and binding into supramolec…
Results of electron-microscopic, electron-diffraction, and X-ray-phase studies of the heteroboundary between the layers of zinc selenide and solid solution (Zn1 −x Cd x Te)1 − y (In2Te3) y obtained in synthesis from the vapor phase in an elasticity field under strongly nonequilibrium conditions (upon condensation on t…
Effect of the warm processing parameters (the strain rate, forming temperature and deformation degree ) on the γ' metastable phase transformation in 2205 duplex stainless steel has been studied. The γ' metastable phase was located within the ferrite phase. Dynamic recovery took place only within the γ phase, and dynam…
In this report the results on the investigation of magnetic states of Fe and Co ions in superlattice [Mo(12Å)Co(21Å)Fe(14Å)]*100 are presented. The magnetic superlattices were obtained by means of cathode sputtering in discharge with oscillating electrons. The results of X-ray diffraction show that magnetic superlatti…
There is proposed the nonlinear model of dose dependence saturation of the yield strength on the base of the vacancy and interstitial barrier interaction in this work. Processes of mutual recombination of vacancy and interstitial barriers and formation of vacancy and interstitial clusters are taken into consideration.…
Poly(ether sulfone)s (PES) containing 25-75 mol % valeric acid were prepared with bisphenol A, bis(4-chlorophenyl)sulfone and 4,4-Bis(4-hydroxylphenyl)valeric acid using potassium carbonate in DMAc (dimethylacetamide) at 160 °C. Copolymers containing carboxylacid group were reduced to hydroxy group by BH3 solution 1M…
Abstract Saponification of methyl dodecanoate with an aqueous sodium hydroxide solution in the absence and presence of alcohols was studied using a tubular reactor made of silicone tube to elucidate effects of alcohol addition on the saponification. The reaction rates of saponification were accelerated significantly w…
Double-patterning generation at 32-nm node and beyond raises many subjects for photomask blanks. We especially focus on the resolution improvement by hyper-thin resist combined with the hardmask process called the hyper-thin resist system (HTRS). Cr-hardmask has been specially developed for the HTRS, and this Cr mater…