Materials Literature
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This paper presents an experimental study on the impact of the metal electrodes on the level of the first spurious mode, electromechanical coupling (kt2) and quality factor (Q) of laterally vibrating AlN contour mode resonators (CMRs). Pt, Ni, and Al are selected for the fabrication of the device top electrode since t…
摘要： 通过己内酯和氨基己酸开环、缩合反应制备了酯段含量为81%的线性聚酯酰胺（PEA），并用熔融共混的方法制备了PEA/聚碳酸亚丙酯（PPC）共混物，考察了PEA的引入对共混体系相容性、热力学稳定性和机械性能的影响。 结果表明，PEA与PPC之间有较好的相容性，共混物的热力学稳定性比PPC有显著提高，当PEA质量分数为3%时，共混体系的起始分解温度（T-5%）和最大分解速率时的温度（Tmax）比PPC分别提高了52.7%和46.4%。 通过调节PEA的含量可以使共混体系同时达到增强和增韧的效果。
A SnO 2 electrode is a promising candidate for a bottom electrode of dye-sensitized solar cells. One of the drawbacks is its low fill factor (FF). We clarified the cause of this low FF using our original hybrid cells consisting of carrier generation areas (a bottom layer consisting of TiO 2 /a dye layer) and carrier t…
We have simulated a circular waveguide loaded with double-negative metamaterials (DNMs) and single-negative metamaterials (SNMs) characterized by the Drude and Lorentz models respectively. The simulation results clearly show a passband in a desired frequency range in which both the permittivity and permeability of the…
The aim of this study was to describe a chemical modification on fast-growing woods. After modification, it was found that the bending strength increased 42.7%, the compressive strength parallel to grain increased 37.8%. Moreover, the characteristics of the unmodified and modified samples were studied by X-Ray Diffrac…
Formamide and urea were used as plasticizers for corn starch to prepare formamide plasticized-thermoplastic starch (FPTPS) and urea plasticized-thermoplastic starch (UPTPS), respectively. The properties of thermoplastic starch (TPS) were tested by scanning electron microscope (SEM), x-ray diffraction (XRD), differenti…
The research of metamaterial is one of most important global activity that promises to change the lives in many different ways. Flexibly controlling the properties of metamaterials by tunable designs makes metamaterials more colorful and thus enables a family of new electromagnetic devices. In this paper, the use of f…
We reported the bioinspired periodic pinecone-shaped silicon (Si) subwavelength nanostructures, which were fabricated by laser interference lithography and inductively coupled plasma etching using thermally dewetted gold (Au) nanoparticles in SiCl4 plasma, on Si substrates for broadband and wide-angle antireflective s…
Uniform Eu3+ doped Y2O3 nanowires with diameters of 50 nm in the anodic aluminum oxide template (AAO) have been fabricated. The Y2O3:Eu3+/AAO composite nanowires were characterized by using powder X-ray diffraction (XRD), scanning electron microscope (SEM) and spectrofluorometer techniques. The results indicate that w…
Warm mix asphalt is a new type of environment-friendly pavement material with high energy-saving and low emission and it has been attracted a number of attentions to its pavement performance. In this paper, LRT, a viscosity and resistance reducing agent for asphalt, was selected as the warm mix agent to add into SMA-1…
Partial discharge (PD) activity has long been known to be an indicator of the presence of some deterioration mechanisms at work within, or on, the solid insulation of the stator windings of high voltage rotating machines. Specifically, the test can find loose, overheated, and contaminated windings, well before these p…
The sol-gel dip-coating method is a simple and inexpensive technique compared to molecular beam epitaxy and chemical vapor deposition. In spite of extensive research over the past several years, the temperature-dependent photoluminescence in ZnO is still not fully understood. The temperaturedependent PL of ZnO thin fi…
A primary study on the resistance to high-temperature-oxidation of 430 ferrite stainless steel and its oxidation process before and after the addition of RE elements was reported. Results show that the oxidation resistance of 430 ferrite stainless steel after adding RE is indeed great. The value of oxidation rate of S…
The rigorous coupled-wave analysis of two-dimensional gratings is revived. Parallel computing method is introduced in the codes based on RCWA. Hybrid computation using GPU with CPU is used to improve the efficiency of the RCWA simulation program, There are combination of highly parallel computing ability of GPU, and t…
In this paper, ANSYS/LS-DYNA which is a non-linear dynamic finite element software is applied to simulate the processes of two kinds of X-sandwich plate hit by a rigid sphere. Ultimate-ly the sandwich plate can be used to replace some components of the traditional steel protective dev-ices aimed at improving the overa…
Abstract Some path breaking inventions of Stan Ovshinsky that benefitted society will be described. His electrical phase change memories are entering the market, poised to be used in many devices. His optical phase change memories are used in rewritable digital video discs. His pioneering work in thin film electronics…
Organic phosphates and phosphoramidates containing alkoxysilyl group were synthesized and used to obtain the corresponding europium complexes. The latter are shown to be applicable for the formation of organic-inorganic hybrids with the components connected with each other through a chemical bond.
This work presents additional arguments about the enhancement of optical and electrical properties of SiNWs obtained by chemical etching and the beneficial effect of the formation of ultrathin film of SiO2 by a heat treatment at 900 and 1000 °C reported recently by Karyaoui et al. in [Eur. Phys. J. Appl. Phys. 58, 201…
This paper provides detailed discussions on the fabrication of aluminum doped silica preform using solution doping technique and modified chemical vapor deposition (MCVD). The porous core layer was deposited at 1750°C with 30cm in deposition length. The soot formed at the inlet and outlet segment of the deposited leng…
The foamed composites could be completely biodegradable which was mainly prepared by corn starch and PVA as matrixes, reinforced by bamboo fiber, separately foamed by water, NH4HCO3 and AC/ZnO, plasticized by the mixed plasticizer of glycerol/urea and other adjuvants using extrusion foaming method. They were respectiv…