Materials Literature
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InSb nanowire arrays have been fabricated by direct current electrodeposition inside the nanochannels of anodic alumina membranes without subsequent annealing. After Au contacts were patterned to the nanowires using electron beam lithography, photoresponse studies were conducted. Absorbance peaks were also recorded fr…
The reliability of multilayer ceramic capacitor with active thin dielectric layer was investigated by highly accelerated life test at various stress condition. The distribution of multilayer ceramic capacitor failure times is plotted as a function of time from Weibull distribution function. According to the test resul…
The influence of mechanical milling and subsequent sintering of a 2:1 molar mixture of SrCO3 and alpha-Fe2O3 on the formation of SrFeO(3-delta) pervoskite-related nanocrystalline particles is investigated. The structural evolution during the formation process is systematically investigated using X-ray diffraction, the…
Poly(L-lactide) (PLLA)/poly(butylene succinate) (PBS) (55/45 w/w) blends with different amounts of nanoclay loadings were prepared using a specially designed high-shear extruder, HSE3000mini, which can reach a maximum shear rate of 4400 sec(-1). The resulted co-continuous structural morphologies were observed by scann…
Gold nanostructures were synthesized via a series of gemini amphiphiles with different lengths of hydrophilic ethyleneamine spacers at a liquid-liquid interface. By stirring the aqueous solution containing AuCl4(-) ions with the chloroform solution of gemini amphiphiles, AuCl4(-) ions were transferred into the oil pha…
Chitosan-carboxymethyl dextran nanoparticles (CHI-CMD NPs) were prepared by the formation of polyelectrolyte complex via the interaction of the positive charged amino group of chitosan and the negative charged carboxyl group of carboxymethyl dextran. Biocompatible organic reagents such as lactic acid, phosphate-buffer…
Hollow CoPt chainlike nanomaterials were synthesized by a galvanic displacement reaction. The morphology, structure, and composition of the nanomaterials were characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD) and electron dispersive X-ray (EDX) analysis. It has found that the hollow CoPt…
Poly(dimethylsiloxane) (PDMS)/montmorillonite (MMT) composites have been prepared using a newly synthesized omega-ammonium functionalized poly(dimethylsiloxane) compatibilizer coupled with a dispersion technique in water. The organoclay containing the new siloxane surfactant was characterized by TGA and XRD. For the f…
Purpose The purpose of this paper is to propose a robust method to estimate the parameters of Jiles‐Atherton model of ferromagnetic hysteresis by fitting the model to symmetrical hysteresis loops. The performance of the method is evaluated by both theoretical and experimental data. Design/methodology/approach Jiles‐At…
SnO2 nanocrystals in SiO2:Eu matrix have been prepared at a relatively low temperature of 170 degrees C for 4 h. Selective transition probability of Eu3+ emission could be done after a suitable excitation wavelength. The room temperature exciton formation at 285 nm for as-prepared nanoparticles is observed and this gi…
This paper describes the techniques and physical parameters used to produce stable centimetric water drops in microgravity, and to study single cavitation bubbles inside such drops (Parabolic Flight Campaigns, European Space Agency ESA). While the main scientific results have been presented in a previous paper, we sha…
We present here a facile route to in-situsynthesis of free-standing metal (gold or silver) nanoparticles-embedded chitosan films by thermal treatment. The produced nanoparticles were confirmed by UV-vis spectroscopy and transmission electron microscopy (TEM). Interestingly, an exquisite dendritic structure was observe…
Innovative nanocomposites of magnetic and fluorescent multifunctional hollow spheres were developed, which combined magnetic resonance imaging (MRI), magnetic targeting, fluorescent imaging (FI) and drug delivery into one system. Fe3O4 hollow spheres were used as templates for the deposition of polyelectrolyte (PE) mu…
The purpose of this study was to examine the relationship between the weight of seasonal garments worn by Korean women in their daily lives and thermal insulation. We selected a total of 121 garments(13 kinds of Under garments, 51 Upper garments, 32 Lower garments, 15 Headgear, 10 Gloves Footgear) based on our previou…
Perkalite, an organically modified synthetic layered double hydroxide, was used as a filler in the preparation of nanocomposites based on isotactic polypropylene. The polymorphism of the polymer matrix was investigated, finding that Perkalite favors beta phase in certain conditions and is not a nucleant for the gamma…
The complexity of the catalyst's actual role and properties, along with the numerous synthesis parameters for the growth of single-walled carbon nanotubes (SWCNTs), has hindered the efforts to understand the formation of this fascinating material. In this manuscript, we review and discuss the data regarding the proper…
This paper reports an analysis of the effect of nanotube alignment on the electrical conductivity of carbon nanotube-based composites using a percolation model. Both straight and wavy nanotubes are considered. The thickness of an insulating matrix film between crossing nanotubes is randomly selected in the range of 0-…
Ordered porous anodic aluminum oxide templates have been used extensively for the preparation of various functional nanostructures. Researches on these nanostructured materials for various purposes have received a tremendous attention during recent years. A review of the literature on the fabrication of nanostructured…
This discussion examines cluster phase transitions and properties related to those phase transitions. Interpreted in terms of their potential energy surfaces, phase transitions in clusters of dielectric and metal atoms differ. Properties of aggregate states of dielectric clusters vary weakly as functions of temperatur…
We report a systematic evaluation of the influence of the use of nitric acid at elevated temperature (80 degrees C) as purification and functionalization treatment for four different types of multi wall carbon nanotubes (MWCNTs) and for carbon microparticles upon their physico-chemical properties. We used BET, Raman s…