Materials Literature
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Get PDF Email Share Share with Facebook Tweet This Post on reddit Share with LinkedIn Add to CiteULike Add to Mendeley Add to BibSonomy Get Citation Copy Citation Text C. Li, Y. Guyot, C. Linarès, R. Moncorgé, and M. F. Joubert, "Radiative Transition Probabilities of Trivalent Rare-Earth Ions in LiYF4," in Advanced So…
The local structure around Eu3+ ions in sodium aluminosilicate glasses was investigated on the basis of phonon sideband associated with the 5D0←7F0 transition of Eu3+. It was found that the positive charge of Eu3+ was compensated by nonbridging oxygens (NBOs) in Q3 units rather than by the excess negative charge of Al…
X-Ray, transport, infrared, magnetic hysteresis, a.c. susceptibility and Mössbauer studies have been carried out for the system CoFe2O4–CoGa2O4. X-Ray and transport measurements indicate cubic symmetry and p-type semiconductivity, respectively, for the compositions with 0.0⩽x⩽2.0. Hysteresis studies demonstrated the p…
Abstract The structure of Li 2 Mg 2 [Si 4 O 11 ] was determined by single crystal X-ray diffraction. It is triclinic, space group P [unk], with a = 8.645(1) Å, b = 7.401(1) Å, c = 6.884(1) Å, α = 104.71(1)°, β = 101.08(1)°, γ = 99.41(1)°, V = 407.5(6) Å 3 and Z = 2. Least -squares refinements based on 1462 observed re…
Untreated aluminium and aluminium hydrated for 60 s in boiling water have been extrusion-coated with low-density polyethylene (LDPE). The hydration transforms the oxide surface into a porous oxyhydroxide, known as pseudoboehmite. LDPE samples with different melt indices (4.5, 7.5, and 15) were used, which influence th…
Abstract This article provides information on the base material properties of wrought duplex stainless steels (DSS). These properties include microstructure, alloy grades, mechanical and physical properties, and corrosion resistance. The article reviews the applications and microstructural development of DSS. It descr…
The viscosity and thermal properties of glasses in the system Na2O-SiO2 were measured near the transformation temperature. The parameters of fragility, ΔCp and Eη/Tg, increased with an increase in Na2O content. Results of these measurements showed a good correlation between ΔCp and Eη/Tg.
High-speed streak photography of surface breakdown or flashover events along the surface of monocrystalline quartz and polycrystalline alumina specimens is reported. The initiation of visible luminosity was observed to be a function of surface properties of the samples. It has been shown that light could originate ind…
The effect of interchain interaction on the nonlinear excitations in the one-dimensional (1-D) Peierls-Hubbard system is investigated by the photo-induced absorption (PA) measurements of the halogen-bridged metal complexes (the MX compounds; M=Pt and X=Br or I), changing the strength of the interchain coupling via the…
An effect of the solutioning conditions on the aging response (precipitation, age hardening) in a β type titanium alloy, Ti–15V–3Cr–3Sn–3Al, is examined.The aging response is strongly affected by the solutioning conditions and closely related to the concentration of quenched-in vacancies, which is a function of the qu…
The influence of the rare earth elements on the non-resonant type third-order optical nonlinearity was studied by third harmonic generation in germanate glasses. The nonlinearity basically increased by the increase in La2O3 content and decreased by the increase in field strength of the rare earth elements. The relatio…
An expedient experimental method has been proposed to characterise the mixing process and performance of powder mixers based on the measurement of changes in the color of the mixture with operating time. To evaluate the mixing and dispersing characteristics among the different types mixing equipment, adhesive fine cal…
Abstract Weldments exhibit special microstructural features that need to be recognized and understood in order to predict acceptable corrosion service life of welded structures. This article describes some of the general characteristics associated with the corrosion of weldments. It emphasizes the role of macrocomposi…
alpha 1-Antitrypsin (alpha 1AT) is a major protease inhibitor present in high concentrations in the plasma. Inheritance of alpha 1AT deficiency or null alleles (alleles associated with no detectable serum alpha 1AT) is associated with an increased risk for emphysema. In contrast to beta zero-thalassemia variants in wh…
The effects of chloride ion concentration on the corrosion behaviour of two Al–Li–Cu–Mg–Zr (8090 and 2091) alloys were studied and compared with that of a standard aircraft alloy, namely Duralumin (Al–Cu (2014)). Constant exposure and potentiodynamic polarisation studies were conducted in NaCl solutions (pH 10·0) of v…
In this paper an experimental and semi-analytical technique is described that provides a method of estimating a macroscopic drying kinetics curve and internal moisture content profiles is described. Moisture gradients and the time evolution of these gradients are analysed as a function of the air drying parameters (dr…
Radiation control coatings (RCCs) are used on building exteriors to reduce the absorption of solar energy. Reduced solar energy absorption results in lower exterior surface temperatures, and, consequently, less heat flow across the building envelope, and reduced electrical requirements to maintain air-conditioned spac…
A discrete structure consisting of peaks separated by hv photon energy was found experimentally in the photoelectron energy spectrum, when illuminating a gold target surface by relatively long light pulses (approximately nanoseconds) and using moderate (approximately 120 MW/cm2) intensity of Nd:glass lasers (λ = 1.06…
The Crystal Structure of the low-temperature, ordered phase of norbornane has been solved and refined from high-resolution powder X-ray diffraction data collected using synchrotron radiation.
Abstract The dehydrochlorination of different samples of PVC under vacuum with continuous removal of HCl by freezing, has been studied at 180–210°C. The comparison of the kinetic curves of the dehydrochlorination of various samples of PVC which were obtained by us and other investigators, with the theoretical curves f…