Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
Fe-Cr model alloys with variations in chromium content and additions of different reactive elements were studied for potential application in reduced temperature solid oxide fuel cells (SOFC). The oxidation resistance in both, anode and cathode atmospheres at 800°C were determined. Additionally, in-situ studies were c…
Aliphatic polyesters derived from lactic and glycolic acids (PLAGA) are the most attractive degradable polymers with respect to biomedical and environmental applications. Poly(e-caprolactone), PCL, is a hydrophobic highly crystalline aliphatic polyester that is more resistant to hydrolytic degradation than PLA. It is…
Ground tire rubber (GRT) and ultrasonically devulcanized GRT (DGRT) were blended with high density polyethylene (HDPE) in a Brabender internal mixer and a twin screw extruder. The DGRT with curatives was mixed with HDPE (HDPE/RGRT) and dynamically revulcanized in an internal mixer and a twin screw extruder. Also, HDPE…
Mammalian cochlea perilymph contains amino acids and protein which have a major effect on the electrochemistry of an implanted auditory prosthesis. Cyclic voltammetry in an artificial perilymph solution shows that many amino acids adsorb at the platinum electrode diminishing oxidation of the metal, and also blocking h…
A novel method based on the solid–liquid reaction in the Ti–Sn–C system was developed for the synthesis of Ti2SnC powders. In this process, Ti–Sn intermetallic compounds were formed in liquid Sn, then they further reacted with graphite powders to form Ti2SnC. The advantages of this solid–liquid reaction based method i…
As power lines are built in contaminated environments, the industrial usage of power-line materials requires high reliability. Nonceramic insulators offer better anticontamination performance than that of the traditional ceramic insulators. Among the nonceramic materials, EPDM and silicone rubber provide much better l…
Mechanics of textile fabrics by modelling of equilibrium of forces is difficult to apply broadly in practical applications. An alternative, which offers more promise for industrial utility in computer-aided design, is the energy-based approach described by Hearle and Shanahan (1978 a, b). The paper reviews the basic p…
We present a full characterization of the anhydrous layered material K2SrTa2O7 related to Ruddesden–Popper type phases. The unit cell, determined from powder X-ray diffraction, is tetragonal with a = 3.9858(1) Å and c = 21.785(1) Å (space group I4/mmm, Z = 2). The layered structure allows spontaneous water intercalati…
An intensely sweet polyoxypregnane glycoside, telosmoside A15 (15), was isolated from an Asian Asclepiadaceae plant, Telosma procumbens, collected in Vietnam. This is the first time a sweet pregnane glycoside has been found, and its sweetness intensity is 1000 times greater than that of sucrose. From the same plant, 1…
Protection of Iron Against Corrosion Using a Polyaniline Layer: II. Spectroscopic Analysis of the Layer Grown in Phosphoric/Metanilic Solution , Bernard, Marie Claude, Joiret, Suzanne, Hugot-Le Goff, Anne, Long, Pham Duy
Biodegradable microspheres were prepared with poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV, 85:15 by mole ratio of hydroxybutyrate to hydroxyvalerate) by an water-in-oil-in-water (W/O/W), oil-in-water (O/W) and oil-in-oil (O/O) solvent evaporation method for the sustained release of anti-cancer drug, 5-fluoroura…
Changes produced after hydrothermal treatments at 400 °C and at different pressures in a set of Lu-saturated smectites have been compared with those occurring in a mixture of 2SiO 2 :1Lu 2 O 3 . The effect of the mineralogical composition of the smectite on the reactivity has been analyzed. The growth of a new crystal…
Large numbers of identical and stable SE(R)RS [surface-enhanced (resonance) Raman]-active media, which are convenient to handle and manipulate but sufficiently inexpensive that they can be used once and then discarded, have been prepared by isolating nanoparticles from Ag and Au sols in hydrophilic polymer gels. The p…
Polycrystalline diamond films and diamond powders, treated with elementary fluorine, chlorine trifluoride or anhydrous hydrogen fluoride under various conditions, have been examined using spectroscopic and microscopy techniques. Formation of C–F bonds occurs when F2 or ClF3 are used, the surface groups present being t…
The characteristics of partial discharge (PD) occurring within electrical trees in extruded cable insulation, and also at model interfaces between a cable and its accessories, have been investigated. A wideband PD detection system was used that enabled the true shape of the PD pulses to be measured. The rise- and fall…
The continuous ultrasonic devulcanization of natural rubber (NR) filled with various concentrations of carbon black (CB) indicated a minimum of crosslink density and gel fraction at an intermediate amplitude, which is independent of CB content. An attempt was made to improve the efficiency of devulcanization by use of…
Anodic film growth in the passive region was studied using the electrochemical quartz crystal microbalance (EQCM) technique. Samples were produced using physical vapor deposition with the compositions of a 304L stainless steel with additions of 20 atom % Cr, Mo, or W. By simultaneous in situ recording of mass and curr…
The use of perfluoroalkyl-substituted cobalt complexes as catalysts for the oxidation of alkyl aryl sulfides with molecular oxygen/2,2-dimethypropanal has been studied in a fluorous organic biphasic system. The addition of very small amounts of a CoII−tetraarylporphyrin (Co-4) led to increased substrate conversions (6…
Stereospecific formation of the chiral heterodinuclear 3d–4f complexes (Λ–Δ)-[(acac)2Cr(ox)Ln(HBpz3)2] (acac− = acetylacetonate, ox2− = oxalato, HBpz3− = hydrotris(pyrazol-1-yl)borato; Ln = Yb: 1, Dy: 2 where (Λ–Δ) implies the absolute configuration around the octahedral Cr and square antiprismatic Ln moiety, respecti…
We present a generalized finite element model of magnetostriction phenomena where the direct and inverse effects are taken into account. The variational formulation in terms of magnetic vector potential and displacement is used to solve this coupled problem. Different computing steps in 3D and 2D cases are reported.