Materials Literature
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Nanocrystalline MnxCe1-xO2 (0 ≤ x ≤ 0.5) powders have been synthesized by microwave refluxing method. XRD, Raman spectroscopy and TEM analysis confirm the substitution of Mn in cerium oxide to a large extent. With increased Mn content, the crystallite size and lattice parameter found to be decreased. In addition, shif…
Shape memory polymer composites (SMPC) are a new kind of smart materials where many researches have been carried out. In SMPC, shape memory polymers serves as a matrix material and particles or fibers act as reinforcements. As structural applications demand structures to withstand load and stiffness, particles reinfor…
In this investigation, copper (Cu) based surface composites reinforced with silicon carbide (SiC) particles were fabricated using friction stir processing (FSP) route. FSP was carried out considering three-factor three-level Box-Behnken design to study the effects of process parameters on peak temperature and hardness…
The main aim of the present work is to develop an oxidation resistant Nb-Si coating on Nb alloys. For this purpose electroless molten salt - method was used, where a selective reaction occurs between NaCl–KCl–NaF–Na2SiF6 and the Si powder. Due to this reaction, oxidation resistant Nb-Si phases forms on the surface of…
Light weight aluminium alloys and low-density materials have drawn the attention of researchers as potential structural materials for transportation sector due to the requirement of effective reduction in fuel consumption, stringent emission norms and higher payload capacity. Functionally Graded Materials (FGM) provid…
In this work we demonstrate that La2NiMnO6 exhibits a colossal magneto-dielectric (MD) effect (5%-55%) over a broad range of temperatures (100–270 K), when compared to other Rare Earth (RE = Pr, Sm, and Tb) containing Ni-Mn double perovskites. The noticeable magneto-dielectric effect in RE2NiMnO6 signals the influence…
The paper illustrates Carbon nanotubes reinforced pure Al (CNT/Al) composites and fly ash reinforced pure Al (FA/Al) composites produced by ball-milling and sintering. Microstructures of the fabricated composite were examined and the mechanical properties of the composites were tested and analysed. It was indicated th…
Electroless nickel coating is one of the versatile methods to improve the physical properties of aluminium alloys. The increasing demand for high corrosion resistant surface with improved performance leads to the development of poly-alloy and composite coatings with the aid of ultrasonication. In the present study Ni-…
Characterization of the charge trapping properties in p-channel silicon–oxide–nitride–oxide–silicon memory devices including SiO2/Si3N4 interfacial transition layer, Chiu, Yung-Yueh, Yang, Bo-Jun, Li, Fu-Hai, Chang, Ru-Wei, Sun, Wein-Town, Lo, Chun-Yuan, Hsu, Chia-Jung, Kuo, Chao-Wei, Shirota, Riichiro
In this contribution we study the effect of the oxygen pressure on the plasma dynamics during the ablation of oxides materials into an oxygen gas. The study was done using fast imaging and ion probe techniques. Both techniques revealed that a threshold oxygen pressure is needed to initiate the plume oxygen interaction…
Transformation Optics (TO) provides the mathematical framework for representing the behavior of electromagnetic radiation in a given geometry by “transforming” it to an alternative, usually more desirable, geometry through an appropriate mapping of the constituent material parameters. Using a quasi-conformal mapping,…
In this paper we prove the existence of weak solutions for the inclusion problem in anti‐plane Cosserat elasticity in Sobolev space setting, and for the corresponding systems of boundary integral equations.
In continuation of last year’s paper on the use of near field imaging, which basically is a reflective shadowgraph method, for characterization of glossy surfaces like printed matter or laminated material, further developments are discussed. Beside the identification of several types of surfaces and related features,…
Non-axisymmetric plasma boundary displacement is caused by the application of the external magnetic field with low toroidal mode number. Such displacement affects edge stability, power load on the first wall and could affect efficiency of the ICRH coupling in ITER. Studies of the displacement are presented for JET tok…
Abstract Flowerlike CuO structures were synthesized by a simple chemical method. These 3D structures are formed by self‐assembly growth of smaller nanosheets as basic building units. Their crystalline phase, morphology, and optical properties were characterized by XRD, field‐emission SEM, and UV/Vis absorption spectro…
An ultra-small telecentric lens with sub-millimeter thickness is proposed. This lens with 0.2 numerical aperture and high field of view is a good candidate to be used in multi-aperture super resolution imagers. Point spread function and the telecentricity of the lens is extracted numerically and measured experimentall…
*avella@ur.rochester.edu Design study for a 16x zoom lens system for visible surveillance camera Anthony Vella*, Heng Li, Yang Zhao, Isaac Trumper, Gustavo A. Gandara-Montano, Di Xu, Daniel K. Nikolov, Changchen Chen, Nicolas S. Brown, Andres Guevara-Torres, Hae Won Jung, Jacob Reimers, Julie Bentley The Institute of…
This study and the field test comparisons were carried out on the Algerian Derguna – Setif transmission systems. The transmission line of normal voltage 225 kV is 65 km long, transported and uses twin bundle conductors protected with two shield wires of transposed galvanized steel. An iterative finite-element method i…
Carbon Fiber Reinforced Plastics (CFRPs) are widely used for advanced applications, in particular in aerospace, automotive and wind energy industries. Once cured to near net shape, CFRP parts need several finishing operations such as trimming, milling or drilling in order to accommodate fastening hardware and meeting…
Efficient visible light active TiO2-Molybdenum sulphide (TiO2-MoS2) composites were prepared by solvothermal methodfrom titanium isopropoxide and commercial MoS2 using N-methyl 2-pyrrolidone (NMP) and isopropanol (IPA) solvent mixture. Extended absorption band edge and enhanced visible light absorbance are supplemente…