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。
Abstract The effect of manganese pretreatment on the corrosion behaviour of AA6061 T6–10% Al 2 O 3 metal–matrix composite was investigated in aerated aqueous 3.5% NaCl solution using electrochemical impedance spectroscopy (EIS). The corrosion inhibition characteristics were studied for two series of manganese‐pretreat…
The scattering phenomenon from an arbitrary-shaped end of a asymmetrical slab waveguide for the cases of TE and TM guided modes is simulated by means of boundary integral equations that are called guided-mode extracted integral equations. The integral equations that we derive can be solved by the conventional boundary…
A dense (>98% theoretical density), residual‐stress‐free m‐ZrO 2 /40 vol% nickel composite with K I C ∼ 5.4 MPa·m 1/2 and ς f ∼ 225 MPa has been obtained using a simple wet processing route and subsequent sintering at 1430°C in a 90% argon/10% hydrogen atmosphere. The mechanism for release of internal stresses by t…
We have grown single crystals of LSMO(327) for x =0.35 and x =0.40 and investigated the elastic properties systematically, together with the electrical resistivity, magnetoresistance and magnetization. Elastic anomaly around the magnetic transition temperature T c , at which remarkable metal-insulator transition occur…
The results of experimental research on the magnetic and resonance properties, heat capacity, muon spin relaxation, and neutron scattering of single-crystal copper metaborate CuB2O4 are reviewed. The results of a symmetry analysis and of modeling by the method of the phenomenological thermodynamic potential are presen…
To develop a thermoplastic elastomer with high blood compatibility, a 2-methacryloyloxyethyl phosphorylcholine (MPC) polymer was blended with the segmented polyurethane (SPU) for preparing the polymer alloy. A tensile strength measurement was carried out to evaluate its mechanical strength. The mechanical strength of…
Banana-shaped achiral compounds, the 1,3-phenylene bis[4-(alkenyloxyphenyliminomethyl)benzoate]s, were synthesized with varying length of the alkenyl group; their ferroelectric properties are described. The smectic mesophases, including a switchable chiral smectic C (SmC*) phase, were characterized by differential sca…
Spherical β‐SiC powders that are a few micrometers in size have been prepared by heating a mixture of phenolic resin powder and fine‐grained fumed silica at 1600°C in argon. The overall process is composed of two consecutive steps: (i) the formation of silica‐coated spherical carbon powder and (ii) carbothermal reduct…
Mixed-layer minerals were analyzed by far infrared (FIR) spectrometry. The FIR spectra show two bands, which occur at 84-87 and 108-114 cm -1 for mixed-layer illite-smectite (I-S) and at 71-79 and 103 cm -1 for mixed-layer phlogopite/vermiculite (P-V). The 103 cm -1 band seen in the P-V series from Palabora is indepen…
The different kinds of crystalline orientations which can occur in industrially relevant isotactic polypropylene (i-PP) films are compared with those generally observed for other semicrystalline polymers. The peculiar bimodality typical of the uniplanar-axial orientation which is present in two-step biaxially stretche…
The gene of chitinase in the silkworm, Bombyx mori, generates four mRNA products by alternative splicing. Nucleotide sequences of the entire gene for chitinase and respective cDNAs demonstrate that the pre-mRNA undergoes alternative splicing at both the 5' and 3' regions. At the 5' region, the pre-mRNA experienced dif…
UNLABELLED: The aim of the present study was to verify the effect of chitosan as a possible adjuvant in the complex management of obesity. METHOD: Fifty obese women (22-59 years, BMI > 30) participated in the study. A six months program consisted of 2-hour meetings with a physician, psychologist and dietitian, in a gr…
Abstract Metal arachidate Langmuir–Blodgett (LB) films with Pb 2+ and Cd 2+ cations and varying numbers of monomolecular layers (2 and 4 monolayers, ML) were deposited on trimethylsilylated glass substrates. The arachidate salt formation was commenced during the film deposition from a water‐based solution. The extent…
The transformation of 2/1-mullite single crystals into stable 3/2-mullite was investigated using reaction couples of 2/1-mullite cut parallel to (001) and silica glass at 1650 °C. A thin layer of 3/2- mullite formed at the surface of the parent 2/1-mullite crystal. Between 3/2- and 2/1-mullite a gradual transition lay…
Abstract Tin samples have been exposed in industrial, rural and urban outdoor atmospheres. Corroded surfaces were studied with Fourier transform infrared reflection absorption spectroscopy (FTIRAS), x‐ray diffraction (XRD), SEM, energy‐dispersive spectroscopy (EDS) analysis and Mössbauer spectroscopy. Corrosion is con…
Ferroelectric 0.7Pb(Mg 1/3 Nb 2/3 )O 3 –0.3PbTiO 3 (PMN‐PT) thin films were deposited on ZrO 2 /SiO 2 /silicon substrates using a chemical‐solution‐deposition method. Using a thin PZT film as a seed layer for the PMN‐PT films, phase‐pure perovskite PMN‐PT could be obtained via rapid thermal annealing at 750°C for 60 s…
Abstract The flammability of polypropylene (PP) and recycled PP composite systems was thoroughly investigated by using cone calorimetry and thermogravimetry techniques in order to quantify the effect of brominated and chlorinated fire‐retardant systems. In this study, the efficiency of the fire‐retarding systems was d…
This paper reports the studies conducted on removal of oxides of nitrogen (NOx) from diesel engine exhaust using electrical discharge plasma combined with adsorbing materials such as molecular sieves. This study is being reported for the first time. The exhaust is taken from a diesel engine of 6 kW under no load condi…
Raman mapping images have been obtained for compatibilized and uncompatibilized polymer blends in films of Nylon 12 and high density polyethylene (HDPE) (blend ratios were 20/80, 50/50, and 80/20). A total of 400 Raman spectra were measured for each sample with areas of 100 μm 2 and in step sizes of 0.5 μm (for 20 × 2…
The effect of sodium N,N‐diethyl dithiocarbamate (SDEDTC) on the corrosion of carbon steel in 0.5mol/L hydrochloric acid (HCl) solution was studied using weight loss, potentiodynamic polarisation curves and impedance measurement methods. Experimental results revealed that SDEDTC acted as an inhibitor in acid environme…