Materials Literature
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In this work a Metamaterial (MTM) absorber design is introduced that has a very wide absorption characteristics over the midrange Infrared (IR) band, the proposed structure comprised of 4 layers, the extra layer adds a degree of freedom in optimizing the response compared the conventional 3-layered absorbers. The simu…
Thin films of a CoPd equiatomic alloy have been obtained by condensation at a high substrate temperature. In their initial states, they are characterized by a microdiffraction pattern in the form of a diffuse halo. This state is a polymorphic martensite-type transformation, which occurs for the martensite transition f…
A multiband metamaterial operating in the 0 THz to 2 THz range was designed with two high refractive index values. The dimension of the slab of the metamaterial is 300 um by 300um and the thickness is 17.45 um. Twenty five resonant metallic structures were placed in the substrate material, with a gap of 1.2 um between…
$TiO_2$ thin films consisting of positively charged poly(diallyldimethylammonium chloride)(PDDA) and negatively charged titanium(IV) bis(ammonium lactato) dihydroxide(TALH) were successfully fabricated on glass beads by a layer-by-layer(LBL) self-assembly method. The glass beads used here showed a positive charge in a…
Summary form only given. Deposition of continuous and conformal copper seed layer for metallization of very large-scale integration (VLSI) fabrication using an electron cyclotron resonance (ECR) plasma source with DC sputter has been studied. As an ECR plasma source, permanent magnets (PM)-embedded Lisitano antenna (Ø…
Lamellar hydrotalcite (HT) was synthesized in the laboratory following combustion method. Tapai fueled HT was found to exhibit more orderly packed microstructure and was more crystalline in nature than its urea fueled counterpart, particularly at higher combustion temperature. The pore structure of tapai fueled HT res…
In this In this study, in order to develop low-temperature sintering ceramics for haptic piezoelectric actuator, Pb(Mg, W)O3-Pb(Ni, Nb)O3-Pb(Zr, Ti)O3(abbreviated as PMW-PNN-PZT) ceramics were fabricated using Li2CO3and CaCO3as sintering aids and their dielectric and piezoelectric properties were investigated with the…
We investigate nonlinear behavior of metamaterial element, where responses of a different nature are intrinsically coupled through its structure. We provide an experimental demonstration of the electromagnetically induced compression of the metamaterials elements, which leads to a remarkable shift of the resonance fre…
As-cast AM60 magnesium alloy was solid dissolved for 40 min at 450 °C under different pressures, atmospheric pressure, 3, 4 and 5 Gpa. The microstructure of the products was characterized by optical microscope and X-ray diffraction. The results show that increasing solution pressure promotes the fracture and dissoluti…
Extended abstract of a paper presented at Microscopy and Microanalysis 2012 in Phoenix, Arizona, USA, July 29 – August 2, 2012.
Fe3O4 magnetic nanoparticles were as seeds and synthesized by the chemical co-precipitation and modified by bilayer surfactants. Styrene was as monomer in the emulsion polymerization ;And copolymerzation of both monomer with crylic acid and enfold Fe3O4.Use TEM observed: in the same experiment condition the magnetic m…
The goal of this study was to investigate the sintering mechanism of Si powder, with the particle size of Si, sintering temperature, and sintering environment as the variables. The use of a crucible, by controlling the vapor atmosphere at certain temperatures, coarsened the silicon powder. Experiment of data show that…
Extended abstract of a paper presented at Microscopy and Microanalysis 2012 in Phoenix, Arizona, USA, July 29 – August 2, 2012.
There is an increasing body of evidence from in-vivo imaging and post mortem studies indicating that the formation of Aβ-rich amyloid plaques and neurofibrillary tau tangles in the brain are major factors that lead to a sequence of pathophysiological events occurring over two to three decades before the manifestation…
We proposed integral imaging (II) system using double layer microlens array. Our proposed microlens array has a wide range of focal length and thus is good candidates both in integral imaging capture and display system.
In this study, the high density 900kg/m3 biodegradable cellulose fiber composites have been successfully manufacture from treated cellulose fiber by wet-hot pressure technology. The cellulose fiber was treated with cationic guar gum(CGG) by the process of adsorption. It was found that the composite made from treated c…
For purpose of recycle and environmental protection, recycled Kevlar selvages and spunlace PP selvages, blended with low-melting polyester, were used to prepare composite nonwovens. In addition, the effect of hot-pressing and lay-up orientation on tensile strength and tearing strength was evaluated. The result shows t…
Summary form only given. 3D micro/nano structured crystalline films designed appropriately with tunable crystal lattice, defect level, size, morphology or architecture are highly desirable for scientific and technical applications, especially in photocatalysts for the production of electric energy and hydrogen and for…
Lanthanum doping TiO2 were prepared by sol-gel method, an the photocatalytic degradation experiments were performed by using methyl orange solution as a target degradant. The results indicated that Suitable doping quantity of lanthanum can improve the photocatalytic activity of nanometer TiO2 powders. On the basis of…
Density functional theory (DFT) calculations were performed to investigate the structures of chloro silsesquioxanes Si2nO3nCl2n (n=1-5). Our study focuses on the structures, stabilities, and electronic properties of the chloro silsesquioxanes. The large HOMO–LUMO gaps, which range from 4.54 to 7.39 eV, imply optimal e…