Materials Literature
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The oxidation and reduction characteristics of sputter-deposited Cu thin film with a preferred orientation have been studied. It was found that Cu oxide, which is identified as phase, is easily formed by annealing at 200°C in an ambient. The linear relation between thickness and the square root of oxidation time indic…
Se han identificado 33 taxones pertenecientes a 20 géneros de diatomeas marinas bentónicas y ticoplanctónicas asociadas al briozoo Zoobothryon verticillatum (Delle Chiaje). Para cada especie además de los datos taxonómicos, se aportan reseñas ecológicas y corológicas, referencias bibliográficas y fotografías originale…
Present knowledge on the formation mechanism of helium bubbles, which will enhance void swelling and lead to production of surface roughening and blistering as well as the high temperature intergranular embrittlement of metals during irradiation, is reviewed. Helium is strongly bound to a vacancy or a vacancy cluster…
Electrical stimulation on cell growth has been investigated extensively in vitro, especially on bone cells.This serves a good pre clinical study for treating injured bones since it has been demonstrated electrical stimulation, in spite of the mode, current or field, AC or DC, coupled or induced, continuous or pulsed,…
Electroactive polymers(EAPs) are one group of smart materials with unique electrical and mechanical properties.This paper will review developments of various kinds of EAPs home and abroad.EAP can be divided into two major categories based on their activation mechanism including ionic and electronic.The electronic EAP…
In this paper, the compatibility of dimethyl ether(DME) with other fuels, lubricity additives and polymers was studied by means of solubility parameter theory. The thermodynamic mechanism of the compatibility of DME with other fuels and materials was analysed. Meanwhile, two methods were introduced to effectively comp…
Transient and steady-state multi-wave mixing experiments are carried out on the novel azo＋c-tube liquid crystal sample. The shape of the diffracted multi-wave consists of rings under Ar＋（514.5nm） laser pump light, and th e nonlinear refractive index is n～0.8. Using different polarization states of the pump laser light…
Polylactide (PLA) polymers are among the most promising plastic made from renewable resources. Thermal stablization of these polymers remains a challenging issue of their industrial processing. We have studied the effect of TNPP in the scope of preventing the molecular weight reduction of PLA at its processing tempera…
We report the experimental structure determination of cold, mass selected Ag55 +/- cluster ions using the recently developed technique of trapped ion electron diffraction. By comparison of experimental and theoretical molecular scattering functions and consideration of computed total energies, we show that Ag 55 + con…
A novel solvent-based single wafer clean process with megasonic feature and single pass fresh solvent spray has been developed This process mitigated the copper undercut problem which existed in the conventional system. The electrical parametric performance meets or outperforms that from the baseline bench process. Mo…
In connection with the recent experimental discoveries on gigantic photoenhancements of the electronic conductivity and the quasi-static dielectric susceptibility in SrTiO 3 , we theoretically study a photo-generation mechanism of a charged ferroelectric domain in this quantum dielectric. The photo-generated electron,…
The homogeneity of typical electrolessly plated Pd/Ag membranes for H2 separation was investigated with XAFS and XPS depth profiling. Next the crucial mixing of the separate Pd and Ag layers, obtained after the two sequential plating steps, was followed in situ with XRD. The results show that some low temperature allo…
Transport models for carrier transport in a semiconducting carbon nanotube are presented. Results encompass tubes of varying diameter and chirality. The focus is on transport in response to a small, axially applied electric field. Models for phonon-limited transport are developed whereby carriers scatter with stretchi…
The iron losses increase when induction motors were supplied by inverter. Based on separated iron losses model, an iron losses computational model considering harmonic component concerning induction motor fed by SPWM inverter was presented through harmonic analysis method. The parameters of the inverter were integrate…
Magnesium alloys are remarkably corroded in chloride environments. The corrosion behavior of the AZ91 alloy is mainly dependent on Fe/Mn ratio and size and distribution of the intermetallic Al-Mn-Fe phase and Mg17Al12 (β-phases) particles. Grain size and heat-treatment condition also influence both the microstructure…
Abstract A mathematical analysis previously developed to solve the quadratic tensor equations that relate molecular hyperpolarizability and bulk medium nonlinear optical constants is applied to donor–acceptor polyene molecules. The focus is on mutual polarization of spatially organized collections of molecules, e.g.,…
The effect of the functionalization of polypropylene by different chemicals on the fabrication and properties of the resulting nanocomposites was studied. Different nanocomposites were prepared using different functionalized polypropylenes (PP) as coupling agents. In order to have better control of the interaction bet…
Ni-Raney catalysts have a sponge-like structure and are largely applied in reactions of organic hydrogenation. The industrial production has the advantages of low cost and simple process, however this catalyst has the inconvenient of the easy deactivation. The understanding of the deactivation mechanism has motivated…
In our previous study, semi-transparent and flexible biodegradable films were successfully prepared from myofibrillar proteins of blue marlin meat. The objective of this study was to elucidate the mechanism of film formation. Effect of pH on the amount of surface hydrophobicity and surface SH group in the film-forming…
Tetragonal tungsten bronze structured K3Li2(Nb1 - xTax)5O15(KLNT) (0.0≤x≤1.0) ceramics was synthesized by the solid state reaction method. The sintering behavior, phase development and dielectric characteristics of KLNT ceramics as a function of x (Nb/Ta ratio) were examined. When the content of Ta increased the tempe…