Materials Literature
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Abstract A generalized equation was derived to calculate the melting temperatures of homopolymers and copolymers. The Gibbs‐Thomson equation for homopolymers and a modified application to copolymers were derived using the proposed equation. The melting temperature T m 0 in the Flory equation corresponds to the melting…
A micromechanics method is developed for the effective magnetostrictive behavior of magnetostrictive composite materials. Explicit relations for determining the effective magnetostriction of the particulate composites with cubic magnetostrictive crystallites are derived and reduce to the well-known results in the case…
Abstract tert-Butoxy groups were introduced at 2 and 2′-positions of the thiophene rings of a dithienylperfluorocyclopentene to prepare a photochromic compound with a thermal cycloreversion reactivity and a low photocycloreversion quantum yield. The cycloreversion quantum yield was similar to the isopropyl-substituted…
An investigation was performed to assess the feasibility of passive gamma-ray spectrometry assay as an approach for on-line burnup determination for the Modular Pebble Bed Reactor (MPBR). In addition to its inherently safe design, a unique feature of this reactor is its multipass fuel cycle in which graphite fuel pebb…
In order to investigate the effects of basic weaves and yarn types on the sound characteristics of silk fabrics, seven samples are woven to the same density, their rustling sounds are recorded, and their sound spectra are obtained from FIT analysis. Physical sound parameters ( LPT, Δ L, Δf, ARC) and Zwicker's psychoac…
The interaction between dissolved Ba 2+ and dissociated ammonium salt of poly(acrylic acid) (PAA‐NH 4 ) in aqueous suspension has been studied. The dissolved Ba 2+ causes flocculation of dissociated PAA‐NH 4 , thus degrading its dispersing effectiveness in aqueous BaTiO 3 suspensions. The concentration of PAA‐NH 4 req…
We previously isolated pleiotrophin (PTN) from bovine bone as a protein and showed that it stimulated osteoblastic growth and differentiation. Further details of its function, however, have not been fully clarified. The aim of this paper was to elucidate the effects of PTN on bone morphogenetic protein (BMP)-induced e…
Thermal stability of ultra-fine grained (UFG) nickel (mean grain size 114 nm) prepared by high pressure torsion was studied by means of positron-lifetime spectroscopy (PLS) combined with TEM. The experimental results obtained by PLS are interpreted using the diffusion trapping model, which allows for determination of…
In the fuel cycle system of the ITER, a large fraction of tritium inventory is expected to be in the cryogenic distillation columns of the hydrogen isotope separation system (ISS). Therefore, the numerical estimation method of hydrogen isotopes inventory in the ISS with high precision is strongly required from safety…
Tetra(n-butyl)ammonium-cis-tri(phenolato)-phthalocyaninato(2-)zirconat(IV) (2) und -hafnat(IV) (1), Di(tetra(n-butyl)ammonium)-cis-di(tetrachlorcatecholato(O, O'))phthalocyaninato(2-)zirconat(IV) (3) sowie cis-(Di(μ-alaninato-(O, O')di(μ-hydroxo))di(phthalocyaninato(2-)zirconium(IV)) (12) sind aus Tetra(n-butyl)ammoni…
A new technique has been developed using a tiny thermistor 0.3–0.5 mm in diameter to determine thermal conductivity of biomaterials over a wide temperature range. Based on steady-state spherical heat transfer in an infinite homogeneous medium, thermal conductivity of the measured medium can be determined from the powe…
A first and unique preparation is reported of a WO 3 /tris(2,2‘-bipyrizine)ruthenium (II) (Ru(bpy) 3 2+ ) composite film by electrodeposition from a colloidal solution containing peroxotungstic acid and Ru(bpy) 3 2+ that is remarkably stabilized by poly(sodium 4-styrensulfonate). The composite film clearly demonstrate…
Ge–As–Ga–S glasses codoped with Er3+ and Pr3+ were synthesized for fiber-optic amplifiers operating in both 1.3 and 1.5 μm communication windows. The energy transfer between Er3+ and Pr3+ in Ge–As–Ga–S glasses was analyzed quantitatively using rate equations. The energy transfer coefficients responsible for two differ…
We describe a method for predicting detection limits of minority elements in electron energy loss spectroscopy (EELS), and its implementation as a software package that gives quantitative predictions for user-specified materials and experimental conditions. The method is based on modeling entire energy loss spectra, i…
Aniline is oxidized to nitrosobenzene as the initial product, which undergoes further oxidation to nitrobenzene. The nitrosobenzene formation is catalyzed by functionalized multiwalled carbon nanotubes (CNT) followed by a coupling reaction between nitrosobenzene and aniline to produce azobenzene. This coupling require…
The Eu-encrypted Preyssler anion, [EuP5W30O110]n-, demonstrates unusual electronic properties as a function of applied potenial. The Preyssler anion itself, when exchanged with a nonredox active trivalent ion such as La3+, is electroactive in acidic solution, reversibly accepting up to 10 electrons under reducing cond…
The phase contents and morphology of a ZrO 2 fiber coating deposited at 1050°C on Hi‐Nicalon TM by chemical vapor deposition (CVD) were examined as a function of deposition time from 5–120 min. The morphological evolution in the ZrO 2 coating was correlated to the development of delamination within the ZrO 2 coating.…
ZnO films doped with different concentrations of aluminum (AZO) have been prepared by the sol–gel technique. The electrical properties of the samples have been measured on as-deposited films. Two of the films have been heat treated in vacuum at 400 °C to determine the changes in transport properties. The electrical pr…
Application of general behavior principles (GBPs) and consideration of relevant contact modes suggest that only incoherent small-scale fuel coolant interactions (FCIs) with negligible damage potential appear possible with the molten oxide fuel-liquid sodium system as the fuel disperses away from the core into a coolab…
For the first time pressure-volume-temperature (PVT) measurements for the crystal-like smectic E phase have been performed. The phase diagram of 4′-n -octyl-4-isothiocyanatobiphenyl 8BT has been recently established using differential thermal analysis up to 250 MPa. 8BT exhibits a splitting of the clearing line above…