Materials Literature
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A first principles plane-wave method is utilized to investigate the bulk properties of the NiTi alloy，such as the lattice parameters, formation energy and cohesive energy and the elastic constant. The results are in good agreement with experimental and other theoretical results.Furthermore,we have studied the geometri…
Based on the adaptive genetic algorithm，the optimized design of phase plates for shaping partially coherent beams is performed. Taking the Gaussian Schell-mode beam as an example，the analytical expression for the far-field intensity is derived and the phase plate capable of transforming GSM beams to flat-topped ones i…
Static first hyperpolarizabilities of a series of stilbene derivatives are calculated at the CPHF/6-311G(d) level. the molecules which possess the electron push-pull pair and delocalized conjugated bridge structure have larger first hyperpolarizabilities because of the intramolecular charge transfer. The influence of…
We have studied partial discharge (PD) localization method on power cable. PD localization in power cable can be generally made from the arrival time interval measured by two devices placed at the terminal of both ends of the measurement section. However, there is a cost problem in this technique because of need of th…
Based on one-year laboratory experiments in which samples were exposed to temperatures as low as −45°C and two-year data from field experiments, it is concluded that Canadian Standards Association (CSA) standards CSA Z662, CSA Z245.20 and CSA Z245.21 adequately address evaluation of coatings for northern pipelines. Ho…
espanolSe describen una nueva subespecie de Uralichas hispanicus y una nueva especie de Selenopeltis. Uralichas hispanicus tardus difiere principalmente de Uralichas hispanicus por tener 14 segmentos en el torax en vez de 11. Selenopeltis longispinus difiere de otras especies de Selenopeltis por tener dos pares de lar…
The electronic structure parameters (such as the structure energy, atomic binding energy of α-Mg and α-Zr phase; the interface energy of Mg/Zr; the surface energy of Mg; the interacting energy between Zr atoms or impurity atoms; the density of state and the charge variety of Mg and Zr in auoys) were calculated by recu…
JOHANNES GENTILLow-temperature gas-phase carburization of 316L austenitic stainless steel was developed in recent years by the Swagelok company.This process generates great mechanical and electrochemical surface properties.Hardness, wear resistance, fatigue behavior, and corrosion resistance are dramatically improved,…
The aim of this work is the study of two black coatings: a spray of black paint, an amorphous carbon film deposited by magnetron sputtering. Our interest in such films is motivated by research on coatings with an homogeneous thickness realized at low temperature in order to characterize steels. The thermophysical prop…
Raman spectra of undoped glasses of CaO-Ga 2 O 3 -GeO 2 system with the garnet (Ca 3 Ga 2 Ge 3 O 12 ) and Ca-gallogermanate (Ca 3 Ga 2 Ge 4 O 14 ) compositions are measured and analyzed. The spectra are interpreted on the basis of comparison to the well known Raman spectra of the garnet crystals with Ca 3 Ga 2 Ge 3 O…
Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation Hee Eon Park, John M. Dealy; Effects of Supercritical Fluids, Pressure, Temperature, and Molecula…
Reinforced materials and manufacturing procedures have a significant influence on the quality, productivityand competitiveness of polymeric composite structures. The present study aims to highlight the influence ofmanufacturing procedures and the reinforced material on the mechanical characteristics features resulting…
A new European Project has been launched in April 2008 under the 7th EURATOM Framework Programme (FP7-211333), with a duration of four years, addressing the ‘Treatment and Disposal of Irradiated Graphite and other Carbonaceous Waste (CARBOWASTE)’. The objective of this project is the development of best practices in t…
Composites of conjugated polymers are becoming increasingly used in organic electronics devices, owing to the electronic and optical properties of the polymers, which are similar to those of semiconductors. However the mechanical properties and processibility of polymers makes them more attractive than crystalline ino…
Using the density-functional theory combined with the projector augmented wave method, we have investigated the electronic structure of Be-doping wurtzite ZnO. The band structure, total density of states and partial density of states of BexZn1-xO are presented and show that the valence band maximum (VBM) is determined…
Nanocomposites are a promising new class of materials for the mechanical components of microstructures such as microactuators and microresonators. This work presents a combination of theoretical and experimental investigations of the utility of carbon nanotube-reinforced composites for designing microstructures. In th…
Using SrCl2·6H2O and Na2CO3 as the main raw materials and adding different complexons as modifiers with simple co-precipitation method, SrCO3 crystals with distinct mor- phologies like spherical, bundle-like, overlapping plate-like, hexagonal star-like, dumbbell-like, etc. can be synthesized in the ethanol-water mixtu…
Nanocrystals of up-conversion phosphor，rare earth-doped sodium yttrium fluoride were prepared by hydro-thermal method for the application in thin film solar cells. Effect of Yb3+ and/or Er3+ doped materials on the crystal structure and optical properties were studied. Up-conversion materials with Yb3+/Er3+ co-doped ab…
An asymptotic analysis of interfacial stability with the surface tension anisotropy is derived for directional solidification of alloys. The zero and first order solution for multi-scale and the zero order solution for single-scale are obtained. The dispersion relation adapted to all wave-length is presented by combin…
Representative magnetoelectric (ME) material Cr 2 O 3 films were prepared on R -cut sapphire ( R -Al 2 O 3 ) and SrTiO 3 (STO) substrates with the aim of applying them in perovskite oxide electronic devices. Cr 2 O 3 thin films were deposited using the DC–RF hybrid magnetron sputtering system at different substrate te…