Materials Literature
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This paper reports the results of structural study on the ordered phases formed in Pd-rich Pd-Mn alloys adopting X-ray powder diffraction method. Formations of the tetragonal D023-type Pd3Mn, orthorhombic Pd2Mn and orthorhombic Pd5Mn3 reported by previous researchers have been confirmed. Rietveld refinement of the dif…
In this paper a new approach is presented, how to calculate the inductance and the core losses of chokes considering DC premagnetization. The formulation is based on the well known Hodgdon model. Generalized material functions are applied that can be easily adapted to measured data. To obtain these data, an experiment…
PVP-CMC and PVP-CMC-BA are designated as medicated hydrogels which are elastic in nature like other gels and solids. This present work was focused on the effect of strain on viscoelastic behavior of these medicated hydrogels. Dynamic frequency sweep test at 10% strain and dynamic strain sweep tests at different angula…
In this work we present an Electron Spin Resonance (ESR) study on La-doped EuFe 2 As 2 aiming to further understand the coupling of localized spin states and itinerant electrons in these systems. The temperature dependence of the Eu 2+ ESR linewidth, g-value and intensity was investigated for both monocrystalline and…
A method for synthesizing carbon-encapsulated metal nanoparticles(CEMNPs) is reported. In the proposed method, a composite precursors containing various nitrate dissolved in absolute ethanol is ignited by a nonelectric detonator in nitrogen gas in an explosion vessel. Upon the completion of detonation reaction, CEMNPs…
There are two critical components of connecting material and structural design in a multiscale design process: (1) relate material processing parameters to the microstructure that arises after mixing, and (2) stochastically characterize and subsequently reconstruct the microstructure to enable automation of material d…
The paper discusses managing risk and uncertainty and presents a discussion based on the engineering prefeasibility studies and storage exploratory, appraisal program. Here, just three areas of mainly technical risk and uncertainty are discussed relating to technology integration, to IGCC site choice and infrastructur…
This research concerns on (TID), (DD) and (SEE) effects also high energy particles’ effects on electronic properties of silicon. It investigates the silicon electronic properties exposed to these particles using a laboratory neutron radiation sources. Some Pieces of a silicon wafer were under neutron radiation at diff…
Propellant residues are scattered onto the soil surface when guns are fired. Here, we studied fired residues and unfired propellants from 9-mm pistols, 5.56-mm rifles, and 7.62-mm and 0.50-caliber machine guns. These propellants are composed of nitrocellulose and nitroglycerin (NG) and although nitrocellulose is insol…
In order to reduce the RESET current of phase change memory (PCM), which is fabricated using standard 0.13-μm CMOS technology, we have investigated various process factors that might affect the phase transition process, including doping concentration, diameter of bottom electrode contact (BEC) and different chalcogeni…
Phase equilibria and miscibility in the silicon-rich corner of the system Si–Cu–Co were analyzed in the present work. Powder mixtures of Cu, Co and Si at 1400 °C were molten and slowly cooled to RT. At the resulting samples, the miscibility of silicide phases was found to be limited: ≤0.5 at% Cu in CoSi 2 , 1.5 at% Cu…
Fatigue behaviour of high chromium steel (HCS) for rolls is presented. Rolls are double layered and they are predicted to be used at roughing stands in hot strip mills. Shells of rolls are made of high chromium steel and for cores a combination of pherlitic – ferritic nodular graphite iron is used. Due to compression…
A scalar readout model is presented to investigate the readout characteristics of the super resolution near field disc. The super resolution effect is described by means of a threshold model, where the super resolution material imparts a phase change on the focused spot if the laser density energy is high enough to tr…
The pressure dependence of the Curie temperature T C has been investigated up to 1GPa for La(Fe 0.88 Si 0.12− y Al y ) 13 itinerant-electron metamagnet. The magnetization change at the thermally induced first-order transition at T C becomes sluggish with increasing y . On the other hand, the magnitude of the pressure…
Nanocrystals of undoped and nickel doped zinc oxide (Zn1−xNixO, where x = 0.00 to 0.05) were synthesized by coprecipitation method. X‐ray study revealed that Ni doped ZnO crystallized in hexagonal wurtzite structure. The incorporation of Ni2+ in the place of Zn2+ provoked an increase in the size of nanocrystals as co…
The transfer of the cooperative self-assembled fibrils to a gold substrate has been studied by means of scanning probe microscopy techniques revealing the crucial role of the early formation of a monolayer.
The main concern for natural fibre reinforced mortar composites is the durability of the fibres in the alkaline environment of cement. The composites may undergo a reduction in strength as a result of weakening of the fibres by a combination of alkali attack and fibre mineralisation. In order to enhance the durability…
The possibility of analogs of dissipative solitons occurring in arrays of carbon nanotubes under the action of a high-frequency external uniform electric field on the array has been established theoretically. The electromagnetic field has been considered in terms of the Maxwell equations, and the conduction electrons…
A metamaterial (MM) absorber is very attractive in the terahertz (THz) regime for its potential applications as a bolometer and thermal emitter. In this letter, we propose a transmission line model for the MM absorber in order to identify the basic absorption mechanism involved. Some strategies are put forward to wide…
Segment-structured diamond-like carbon (S-DLC) film, which is separated DLC films into small segments using metal mask, has been developed in order to improve its tribological property or accomplish multi-functionalized surface. Meanwhile, the S-DLC deposition by conventional methods using metal mesh as masks is diffi…