Materials Literature
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Ni2MnGa thin films, with thickness between 30 and 60 nm, were pulsed-laser deposited at room temperature on Si micro-cantilevers and glass substrates. Two different deposition processes were performed: normal deposition and off¬-normal. After annealing in an inert atmosphere, in-plane isotropic magnetic hysteresis loo…
Polyacrylamide (PAM) nanofibers was spun by electrospinning. In order to increase the molecular weight of the PAM, It has been cross linked by Glutaraldehyde solution. By means of scanning electron microscopy (SEM), the effect of electrospun technological parameters on the fibers’ morphology were researched. The param…
The results of processing various materials with autoresonance ultrasonic turning are presented. After the ultrasonic processing of metals, nanostructured near-surface layers emerge that are responsible for the macromechanical characteristics of the material. The developed technology allows for the processing of vario…
This paper presents several BAM requirements for a sealing qualification process for metallic seals in transport casks. On qualification tests performed by GNS, advice will be given for the implementation of necessary investigations. This paper shows the results of special research by GNS which were used as proof conc…
Abstract The coagulation properties of cellulose from cellulose//NaOH/thiourea/ urea/H2O solutions were investigated with the goal of determining the optimal coagulation conditions for the spinning of cellulose fibers. The present study was concentrated on the effect of the coagulation variables upon the coagulation p…
This paper presents the combustion synthesis and characterization of one-dimensional silicon carbide nanostructures (nanowires of 3C-SiC polytype with zincblend structure) by means of cathodoluminescence technique. Cathodoluminescence spectra of nano-SiC samples and, as a reference, of a commercially available SiC mic…
This paper gives brief overview of possible methods for approximate locating of galvanic faults in cables with symmetrical copper pair cables as well as possible methods of repairing the same ones. The main focus is based on two principal methods of locating faults like the use of measuring instruments that run on the…
The effect of ethylene partial pressure and temperature on the hydrocarbon decomposition rate was studied. As a catalyst, a triply promoted iron catalyst (with addition of small amounts of potassium, calcium and alumina oxides) was used. The mean crystallites size was ca. 17 nm. The processes were performed using pure…
Highly ordered ferromagnetic iron nanowire (Fe NW) arrays with diameters of about 60 nm and 200 nm were fabricated by electro-chemical deposition into anodic aluminum oxide (AAO) templates. The magnetization measurements show the 60 nm NWs as having a larger anisotropic magnetization. This result was illustrated by th…
Abstract This article focuses on the analyzing and modeling of stress-strain behavior of polycrystals of pure face-centered cubic (fcc) metals in the range of temperatures and strain rates where diffusion is not important. It presents a phenomenological description of stress-strain behavior and provides information on…
Abstract The linear Reissner‐Mindlin membrane‐bending plate model is the rigorous Γ‐limit for zero thickness of a linear isotropic Cosserat bulk model with symmetric curvature. For this result we use the natural nonlinear scaling for the displacements u and the linear scaling for the infinitesimal microrotations Ā ∈ s…
Birinci firin sicakliginin polietilen teraftalat filamentlerin ozelliklerine etkisi kopma mukavemeti, kopma uzamasi, kaynama cekmesi, kivrim stabilitesi, kivrim buzulmesi ve kristalinite olcumleriyle incelenmistir. Kristalinitenin 200oC civarinda maksimuma ulastigi ve ardindan dusmege basladigi bulunmustur. Kivrim sta…
Abstract Diffusion is the process by which molecules, atoms, ions, point defects, or other particle types migrate from a region of higher concentration to one of lower concentration. This article focuses on the diffusivity data and modeling of lattice diffusion in solid-state materials, presenting their diffusion equa…
Resistive-switching behaviors in transition metal oxides, such as NiO and TiO2, have attracted great attention recently due to the potential for the next-generation nonvolatile memory applications. However, read disturbance due to the cross-talk among neighboring cells is a serious issue for the implementation of larg…
Arrays of microsensors may be employed for accurate detection of multiple gases possibly existing simultaneously in an environment. They can be made reconfigurable for improving efficiency and reliability. Constituent microsensors in such a reconfigurable array are highly desirable to operate in an ultra low power reg…
Article Effects of Plasma Transferred Arc Welding Parameters on Bead Geometry in Tungsten Carbide Hardfacing was published on December 1, 2009 in the journal Journal for Manufacturing Science and Production (volume 10, issue 3-4).
The water absorbency of jute needle-punched nonwoven fabric has been studied. Statistical models using central composite rotatable experimental design are developed for density of fabric, extrinsic sorptive capacity and extrinsic rate of sorption, depending on the three important parameters, i.e. needling density, dep…
Microwave processing has revolutionised the synthesis of all kinds of materials including insulators, semiconductors metals and alloys. The technique can either be employed in a mixed mode, separated E-or H-mode or in a combination with other preparation techniques. In no time and at much lower temperatures and power…
In this paper we present a compact circular patch antenna using multiple complimentary split ring resonator(multiple CSRR) in the ground plane. The proposed antenna operates at 2.48GHz. The resonant frequency depends on the parameters of the CSRR. It is fabricated on a substrate of er 4.4 and h 1.6mm.The studies shows…
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