MD simulations of hydrogen plasma interaction with graphene surfaces
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Structural, Morphological and Composition Analysis of Nanocrystalline La0.67Ba0.33MnO3 Powder
La0.67Ba0.33MnO3 powders were successfully prepared by a standard solid state reaction method, and systematically investigated the influence of the sintering temperature on the structural, microstructure, composition properties. The XRD pattern showed that the as prepared LBMO material was in single-phase with rhomboh…
پلیمرشدن رادیکالی کنترل شده وینیل استات در مجاورت کاتالیزورهای مختلف و ذرات میان تخلخلی سیلیکا : ساختار و خواص پلیمر
پلیمرشدن وینیل استات با کمپلکس لیگاند دی متیل فرمامید(DMF) و کاتالیزورهای کبالت استواستونات (Co (acac)2)، روی کلرید (ZnCl2 )، قلع کلرید (SnCl2)، ذرات میان تخلخلی MCM-41 و SPB در حضور آغازگر بنزوئیل پراکسید در پلیمرشدن توده ای بررسی شد. درصد شاخه ای شدن نسبی پلی وینیل استات حاصل در حضور کاتالیزورهای مختلف با استفاده از…
A New Complex of Manganese (II)-Nitronyl Nitroxide Mn[(NIT-1′-MeBzIm)2·(H2O)2]·ClO4·H2O: Synthesis, Crystal Structure, and Magnetic Properties
A new manganese (II) Complex Mn[(NIT-1′-MeBzIm)2· (H2O)2]·ClO4·H2O (NIT-1′-MeBzIm = 2-{2′-[(l′-methyl)benzimi- dazolyl]}-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide) has been prepared and structurally characterized by single-crystal X-ray diffraction. The complex crystallizes in monoclinic space group C2/c, Z = 4. C…
Numerical simulation of frequency-selective structures
The paper presents the results of numerical modeling of the structure composed of spirals winding in different directions. It is shown that this structure has frequency-selective properties and allows controlling the behavior of the reflected wave.
On the estimation of the magnetocaloric effect by means of microwave technique
The method based on low-field microwave absorption measurements is presented to estimate the relative change of entropy with magnetic field. This method is illustrated on both the polycrystalline Gd5Si2Ge2 alloy and the single crystalline La0.7Ca0.3MnO3 manganite. It is shown that there is the simple functional relati…
EFEITO DOS DIFERENTES TEORES DE MOLIBDÊNIO NAS PROPRIEDADES MECÂNICAS DE LIGAS FERRÍTICAS COM 9% DE CR
O objetivo deste trabalho foi determinar as principais propriedades mecânicas de três ligas experimentais com 9% de Cr e o teor de Mo de 5%, 7% e 9%. Realizou-se ensaios mecânicos para determinar as propriedades mecânicas das ligas através da realização de ensaios de dureza, tração e impacto, obtendo-se valores de mic…
Preparation and Characterization of Ag and Co Doped ZnO Nano Particles
Pure ZnO and Ag, Co doped ZnO nano particles [Zn1-xAgxCoyO, where x = 0.00 and 0.05, y = 0.05] were synthesized by chemical co precipitation method without use of surfactant. All the prepared samples calcinated in 1 hour at 500oC, after that the morphology of the samples were evaluated by Scanning Electron Microscope…
Electrochemical Sensor for the Detection of Dopamine in the Presence of Ascorbic Acid in Neutral pH on Graphitized Nanoporous Carbon Modified Glassy Carbon Electrode
Selective detection of dopamine (DA) in presence of ascorbic (AA) is an important analytical problem, due to its combined existence in the biological system. In the present study, we are reporting an electrochemical detection method for dopamine (DA) in the presence of ascorbic acid (AA) using graphitized nanoporous c…
Synthesis, Growth and Characterisation of Novel Semiorganic Material: Lithium Boro-Succinate
Single crystal of lithium boro-succinate (LiBS), a semiorganic nonlinear optical material has been grown by slow evaporation method at ambient temperature. The lattice parameter and crystal structure were analysed by powder XRD. The optical transmission spectra revealed optical properties of the grown crystal. FTIR st…
Modification in Hygroscopic Nature of Urea via Formation of Solid Solution, and its Particle Size and Second Harmonic Generation Study
Solid solution of m-dinitrobenzene (DNB) and 4-bromo-2-nitro aniline (BNA) in urea (U) were prepared based on the prior study of phase diagram. The formation of solid solution was studied using the powder X-ray diffraction techniques. The powder X-ray data were also used for the study of particle size and strain in so…
Sondes actives en champ proche pour la plasmonique et la plasmonique quantique
Les plasmons de surface (SP) sont des modes du champ électromagnétique confinés à l'interface entre un métal et un diélectrique. De par leur nature hybride, les SP permettent de concentrer et manipuler la lumière à des échelles sub-longueur d'onde. Ces propriétés sans précédent suscitent un grand intérêt, en particuli…
Growth and Characterization of Zinc Doped L-Proline Cadmium Chloride Single Crystals
Single Crystals of 20% of Zinc doped L- Proline Cadmium chloride [Zn(20M):LPCC] and 40% of Zinc doped L-Proline Cadmium chloride[Zn(40M):LPCC]were successfully grown from aqueous solution by slow evaporation method at room temperature. The grown crystals of [Zn(20M):LPCC] and [Zn(40M):LPCC] have dimensions 47x14x3.7 m…
Comparative Study on the Properties of BTCS and BTCZS Crystals Grown by Slow Evaporation Method
Good quality Bisthiourea Cadmium Sulphate (BTCS) and Bisthiourea Cadmium Zinc Sulphate (BTCZS) crystals have been grown by simple slow evaporation method. The grown crystals were found to be transparent in the entire visible region. From the powder X-ray diffractograms it is concluded that BTCS crystal belongs to orth…
Growth and characterization of thin Si–C films in RF plasma and optical emission spectroscopy
Abstract Radio frequency (RF; 13.56 MHz), non‐equilibrium low‐pressure plasma is a robust environment well suited for the deposition of thin films. The parametric research has been carried out in a novel system on the formation of SiC‐related thin films resulting from the decomposition of tetramethylsilane TMS, Si(CH3…
Effect of Electric Field on Nonlinear Optical Properties of Hydrazone Doped PMMA Films
We report the effect of electric field on third order nonlinear optical properties of Hydrazone (Hz) doped Polymethyl methacrylate (PMMA) films. The films were prepared by solution casting method. Poling of films was done by corona discharge. Single beam Z-scan technique with 7ns Nd: YAG laser pulses at 532nm were emp…
Target to Substrate Distance Dependent Optical and Electrical Properties of Sputtered NiO Films
Nickel oxide (NiO) thin films were deposited on glass substrates at various target to substrate distances in the range of 60 to 80 mm by dc reactive magnetron sputtering technique. It was observed that target to substrate distance influenced the morphological, optical and electrical properties of the deposited films.…
Effect of Microwave Sintering on the Structural and Electrochemical Behavior of Yttria Substituted BaCeO3 Nanocomposites for Solid Oxide Fuel Cell (SOFC) Applications
Abstract. The Yttria substituted BaCeO3 nanocomposites were prepared by modified Pechini technique followed by novel microwave sintering at 1400°C. The powder XRD results show that the material exhibit orthorhombic crystalline structure. The average grain size was calculated to be as 55 nm. SEM results show that the h…
Dielectric and Conductivity Study of SrBi2Ta2O9 Ceramic by Microwave Sintering Technique
Bismuth layered structure SrBi2Ta2O9 ceramic is prepared by the microwave sintering technique via solid state route at 1100°C. X-ray diffraction analysis is used to analyze the phase purity and identifies the orthorhombic phase with A21am space group. The fracture surface morphology of the sintered pellet is visualize…
Structural, Optical and Laser Damage Threshold Studies of 1, 10 Phenanthraline Doped Potassium Penta Borate (KB5) Single Crystals
We concentrate on the low temperature slow solvent evaporation method and characterization of pure and 1, 10 phenanthraline doped KB5 and describe its potential as a non-linear optical material. The grown crystal has been subjected to single crystal X-ray diffraction analysis to identify the unit cell parameters and c…