Materials Literature
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Gelatin gel microcapsules with a narrow size distribution have been prepared for the use of regenerative therapy by means of SPG (Shirasu porous glass) emulsification and UV-induced cross linking, and the melting and swelling behaviors of the gel membrane of the microcapsules were observed. The gel melting temperature…
A load current in dc high voltage cables results in a temperature drop across the insulation and hence a radial distribution of the insulation conductivity is found. Direct consequence is an accumulation of space charge in the bulk of the insulation, that may significantly affect its reliability. This phenomenon was m…
KEYWORDS: high-level radioactive wastegeological disposaloverpack corrosionNa-montmorillonitecation exchangeFe(II)-nitrilotriacetateFe(II)-montmorillonitepreparation of Fe(II)-montmorillonitestability of Fe(II)-montmorillonite
The ErCo 2 compound is prepared by arc-melting and its entropy changes are calculated using Maxwell relation. Its entropy change reaches 38 J/(kg·K) and its refrigerant capacity achieves 291 J/kg at 0–5 T. The mean field approximation is used to calculate the magnetic entropy of ErCo 2 compound. Results estimated by u…
Composition-graded films (CGF) of fluoroapatite (FAP) and poly(3-hydroxybutyrate- co-4-hydroxybutyrate) (PHB) were prepared via electrospinning solutions of FAP and PHB using a gradient composition of CGF. Thermal properties, mechanical properties and surface morphology of the films were investigated. Designed thermal…
Several methods of decontamination, such as melting, heating with flame, isotopic exchange with gaseous hydrogen, replacement with hydrogen, and thermal desorption under moist gas, were tested on stainless steel, INCONEL®, beryllium, copper, and aluminum bronze contaminated with tritium. The detritiation methods were…
For the DyMnO3 multiferroic with a modulated magnetic structure, switching of its spontaneous electric polarization (P ‖ c axis) near the ferroelectric transition (T < T FE ∼ 20 K) is revealed by measuring the dielectric hysteresis loops. It is found that the coercive field strongly increases as the temperature decrea…
A review of the condition assessment methods of porcelain insulators shows that there is motivation for further improvements particularly regarding applications in distribution systems. Acoustic and high frequency (HF) methods are quite attractive mainly due to better immunity to noise and the relative easiness with w…
Microbially influenced corrosion (MIC) of steel has gained increasing attention in recent years because the damage caused by this process is a significant cost factor for industry. Consequently, inhibition of corrosion and especially the development of corrosion protective films is an important present-day research to…
Highly transparent and conductive B-doped ZnO (BZO) thin films have been prepared by a newly developed vacuum arc plasma evaporation method that provided high-rate film depositions using sintered BZO pellets and fragments. The obtained electrical and optical properties of the deposited BZO thin films were considerably…
In order to clarify the peripheral chain substitution position effect on columnar mesophase and stacking structures, we have synthesized three novel series of discotic liquid crystals (1-3) having octakis(phenoxy)phthalocyaninato copper(II) as a central core and one peripheral chain at the para position (1), meta posi…
In this paper, we describe the effects of ultrasonically preformed cavitation multibubbles in molten metal on both the onset of nucleation and the grain refinement of the solidified metal. Wood's alloy, that is, a bismuth-based quaternary eutectic alloy having a low melting point, was employed in the experiments. It w…
A metal-free phthalocyanine with four pyridyl donor groups, bound through ethylthio ester bridges on the periphery, have been prepared. The pyridine donors were quaternized with iodomethane to a water-soluble tetracationic phthalocyanine. The tetranuclear supramolecular phthalocyanine was prepared by the coordination…
BCC wires macroscopically deformed by axisymmetric elongation (wire drawing) develop an intense <011> fibre texture and exhibit a characteristic non-uniform deformation of the grains evident in transverse sections (grain curling or “Van Gogh sky structure”). The extraordinary grain morphology induced by the <…
Crystal Growth of CdSe Quantum Dots Adsorbed on Nanoparticle, Inverse Opal, and Nanotube TiO2 Photoelectrodes Characterized by Photoacoustic Spectroscopy, Toyoda, Taro, Uehata, Terumasa, Suganuma, Rihito, Tamura, Satoru, Sato, Akira, Yamamoto, Kana, Shen, Qing, Kobayashi, Naoki
Abstract Irradiation hardening and microstructural change of oxide dispersion strengthened (ODS) ferritic steels were investigated by using the ion-irradiation technique. The material used for the present study was K3 (16C-2W-0.3Ti-4.6Al-0.4Y2O3) ODS ferritic steel for the application to Generation IV concept advanced…
It has been shown that the aliovalent substitution of sodium ions for strontium or barium ions in strontium barium niobate relaxor ferroelectric causes a decrease in vacancy content of the samples and a linear variation of unit cell volume with sodium concentration. The variation of c lattice parameter with sodium con…
Mesoporous Ce-Mn-MCM-41 molecular sieves with Si/(Ce+Mn) molar ratios of 43, 61, 79, and 97 were synthesized under hydrothermal conditions using CTMABr (cetyltrimethylammonium bromide) as sur- factant and manganese acetate and cerium sulfate as sources of Mn and Ce, respectively . The Ce 4+ and Mn 3+ ions were coordin…
In the first part of this review, the authors give a survey on the literature of vibrational spectroscopy of phenol, phenol derivatives, and other phenolic componds from the last decade of the last century through today. The classical and modern methods of vibrational spectroscopy are also introduced and a glossary is…
Supramolecular triads composed of free-base porphyrin, fullerene, and ferric porphyrin were constructed by using “covalent-coordinate” binding strategy. For this, a free-base porphyrin was covalently linked to a fullerene entity bearing a pyridine ligand, and was subsequently utilized to coordinate ferric porphyrins b…