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。
Fuel rod cladding oxidation is one of the key aspects of the accidental behaviour of LWR fuel elements, and a comprehensive base of experimental information on its kinetics is available. However, the conventional treatment of zirconium oxidation kinetics in some severe accident (SA) codes is unsatisfactory compared to…
The present study deals with binary xZnO-(100-x)B2O3 (x=50-60%) and ternary yV2O5-50ZnO-(50-y)B2O3 (y=5-10%) glass systems. The mass density, oxygen packing density, molar volume and optical energy gap of these glasses were measured at room temperature. The density varies in the range of 2.92 - 3.57 g/cm 3 . The absor…
In the ferroelastic material WO3 it has been observed that diffusion of both sodium ions and oxygen vacancies occurs at an enhanced rate within twin domain walls. A number of explanations can be proposed for this result. Here we investigate how the structure of a ferroelastic domain wall can influence diffusion rates.…
Proteins can interact with corrosion reactions in several ways. In this study, we investigated the effect of albumin on the corrosion resistance of titanium in the presence of fluoride. The effects of the NaF concentration, albumin concentration, and pH on the corrosion characteristics of commercially pure titanium (C…
Specimens of a plain-woven cotton fabric and a plain single-jersey weft-knitted cotton fabric were washed and then tumble-dried for predetermined periods of time under three different temperature settings. Length and width shrinkage, wrinkling, mass of the whole specimen, and warp and weft yarn diameters were determin…
Abstract The preparation of star‐shaped poly( γ ‐benzyl‐ L ‐glutamate)s by the ring‐opening polymerization of N ‐carboxy anhydride γ ‐benzyl‐ L ‐glutamate (BLG‐NCA) with hexakis(4‐aminomethylphenoxy)‐ ( 4 ) and hexakis(4‐aminophenoxy)cyclotriphosphazenes ( 6 ), and the conformation of resulting polymers has been studi…
Crevice corrosion behavior of high nitrogen-bearing stainless steels with up to 1.1 mass% nitrogen were investigated in artificial seawater. Specimens were highly purified and contained ultra-high nitrogen of about 1 mass% obtained by using nitrogen gas pressurized electroslag remelting (P-ESR) system. 23%Cr-4%Ni-0 to…
Pressure effects on enantiodifferentiating geometrical photoisomerizations of (Z)-cyclooctene and (Z,Z)-cycloocta-1,5-diene sensitized by chiral benzene-1,2,4,5-tetracarboxylate were investigated over a pressure range of 0.1-750 MPa. Enantiomeric excesses (ee's) of the (E)- and (E.Z)-isomers obtained displayed discont…
The design and application of a novel plug flow crystalliser is described. Simultaneous collection of SAXS and WAXD during the nucleation and crystal growth of a small organic molecule from solution is reported. Preliminary data imply the separation of a non-diffracting phase prior to the appearance of crystalline sol…
Volatile organic compounds, emitted by a lot of sources, particularly from gasoline engines of automobiles, are air pollutants that give rise to deleterious health and environmental effects.Total catalytic oxidation is an attractive method in controlling these emissions due the great amounts of energy saved, by the mo…
We made a series of aspen fibre medium density fibreboard panels adding various levels of chicken feather fibre to determine the relative effect of the feather fibre-wood fibre mixtures on composite panel properties. Chicken feathers are a waste product left over after processing chickens for meat. The feather fibre a…
Thermal and infrared spectroscopic studies were performed on the hydrogen-bonding interaction in the blends of biodegradable atactic, highly syndiotactic and isotactic poly(3-hydroxybutyrate)s with catechin. From the analysis of Fourier-transform infrared spectra, it was found that the crystalline phase could greatly…
New bimetallic framework and non-framework titanium and tin silicalite have been investigated for phenol hydroxylation with H2O2 in different solvents, and the optimized catalyst composition showed 26% higher initial rate than reference TS-1.
Miscibility of chitosan (CHI) with poly(ethylene oxide) (PEO) was studied in dilute solution by viscometry. Blends with CHI/PEO compositions of 0.1/0.9, 0.2/0.8, and 0.3/0.7 were studied at 25°, 30°, and 35°C, in a buffer solution of 0.1 M acetic acid/0.2 M sodium acetate. Starting with the classical Huggins equation,…
Abstract The microstructure developed during the T5 treatment of squeeze cast magnesium alloys containing rare earth (Gd, Y, or Ce, ≈ 3–10 wt.%), Sc (< 1 wt.%) and Mn (< 1.5 wt.%) is responsible for a reasonable age hardening in MgGdScMn alloys. Moderate age hardening is only possible in MgY4Sc1Mn1 or MgCe3Sc1Mn…
In these experiments, the effects of the drying history of hydrogels made from a novel polymer, oligo(poly(ethylene glycol) fumarate) (OPF) with two different poly(ethylene glycol) (PEG) molecular weights (approximately 920 (1K) and 9110 (10K) g/mol), were investigated. The hydrogels were either formed, dried and then…
A technique for in situ monitoring of changes on surfaces of semitransparent thin films is presented. This technique combines ellipsometry and total internal reflection and is called total internal reflection ellipsometry. It utilizes the high surface sensitivity of ellipsometry and can be applied to detect and quanti…
The methods of X-ray diffraction, Fourier transform infra-red spectroscopy (FTIR), X-ray microanalysis, electron microscopy, BET and cation exchange capacity (CEC) were used for investigation of the structural-phase transformations in bentonite under the influence of hydrochloric acid and temperature treatment (100-80…
In this article, thermogravimetry (TG/DTG) was used to determine the effect of heating rate on the thermal properties and kinetics of raw and cleaned coal samples from Soma, Tunçbilek, and Afşin Elbistan regions. TG/DTG experiments were carried out at 4 different heating rates (5, 10, 15, and 20°C/min). Generally, for…
Foam fractionation is an adsorptive-bubble separation method that, according to researchers, is a feasibletechnique for the separation and/or concentration of proteins. The foam fractionation of bovine serum albumin (BSA) inlaboratory -scale foam fractionation columns (750 and 1250 mL) and the relationship between the…