Materials Literature
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The chip morphology and the formation and development of the adiabatic shear band within the serrated chips formed in high speed cutting of 30CrNi3MoV steel with two tempering hardness were observed and analyzed using optical microscope and SEM. The investigation shows that as the adiabatic shear phenomenon occurs and…
The intrinsic photoconductivity of InSe layered crystals has been measured. The behavior of the photoconductivity at high photon energies can be accounted for by the influence of hyperbolic excitons generated by the laser light.
The influence of radiation damage on the microstructure of pyrolytic graphites was analyzed. The correlation between the temperature dependences of ion-induced electron emission and structural modification of UPV-1 pyrolytic graphite and highly oriented UPV-1T pyrolytic graphite under neutron and high-fluence (10 17 –…
The role of Chemical Vapor Deposition's (CVD) temperature and time duration on the mass transport properties and repercussions of these properties on the crystalline growth of ZnO nanowires inside Anodic Aluminum Oxide (AAO) nanotubes (aspect ratio = 1500) have been investigated. CVD assisted growth of nanowires in AA…
A measurement technique, pulsed thermoluminescence, is described which uses short thermal pulses to excite trapped carriers leading to radiative recombination. The pulses are obtained using microstructures with approximately 500 micros thermal time constants. The technique has many of the advantages of pulsed opticall…
In this paper, the result of an investigation on the effect of using M4 Grain-Oriented Silicon Iron core material to the 100kVA three phase distribution transformers has been analyzed. The investigation includes the variation of power loss and flux leakage with 5mm different overlap length with staggered yoke and limb…
Metamaterials (MTMs) claim a lot of attention worldwide. Description of the MTMs in terms of effective parameters is a simple and useful tool for characterisation of their electromagnetic properties. So a reliable effective parameters restoration method is on demand. In this paper we report about our activity and adva…
This paper reports that a general method of designing invisible cloaks is using variant constitutive material parameters to realize the space transformation. A hollow region can be hidden after this transformation. It was recently shown (Ma H, Qu S B, Xu Z and Wang J F 2009 Appl. Phys. Lett. 94 103501) that when the o…
In the present work the phases of the zinc coatings deposited with hot-dip galvanizing, pack cementation and wire flame spraying are examined with Scanning Electron Microscopy and Transmission Electron Microscopy. The different phases which are observed are identified with the combined results of electron and X-Ray di…
GeC thin films have been prepared by reactive pulsed laser ablation technique. Methane pressure (PCH4) was varied from 0 to 75 milli torrs (mT). Optical analysis of all the samples was performed by spectroscopic ellipsometry (SE). The optical constants i.e. refractive index (n), extinction coefficient (k), absorption…
The Ce3+doped Li6Gd(BO3)3(LGBO) crystal is a promising scintillation crystal for thermal neutron detection. This crystal can be grown by Czochralski technique or modified Bridgman method for its melting point at about 848°C. With a lower radial temperature gradient, the LGBO crystal using CeO2as dopant host (CeO2:LGBO…
This paper presents latest own results in the development of reversible photochromic and irreversible photofluorescent polymer systems providing fabrication of multilayer recording media for 3D optical memory with super high information capacity. It was shown that synthesized thermal irreversible photochromic diarylet…
Bi 2 O 3 films have been deposited on alumina particles by Fluidized Bed Chemical Vapor Deposition at atmospheric pressure, using bismuth triphenyl and oxygen as precursors. In the operating range tested, the presence of Bi on the whole particles has been evidenced by EDX, and the existence of the α and γ phases of Bi…
Antimony-doped tin oxide ( SnO 2 : Sb , ATO) films were deposited on 7059 corning glass substrate by radio frequency magnetron sputtering method using a commercial ceramic target with a mixture of SnO 2 and Sb (6 wt.%) for application to transparent electrodes. The ATO film was deposited at working pressure of 5 mTorr…
Abstract A protocol for the simultaneous functionalization and phase reduction route of iron oxide magnetic nanoparticles (MNPs) and its further bioconjugation is presented. It was found that surface functionalization of maghemite (γ‐Fe 2 O 3 ) nanoparticles with mercaptopropyltrimethoxysilane (MPTMS) under anoxic env…
The physicochemical properties and Raman spectra of glasses of the composition 40Ba(PO 3 ) 2 · 60MgCaSrBaAl 2 F 14 doped with europium and terbium have been investigated. The results of the performed investigations have been compared with the data of the analysis of the recorded EPR spectra of irradiated glasses of th…
The nonlinear dynamics of the orientational phase transition of the magnetization vector in a magnetoelastic medium is analyzed. It is demonstrated that the transition involves the precession of the magnetization vector accompanied by the elastic oscillations at the same frequency. The critical constants of magnetoela…
A New Environmentally Friendly Clay Stabilizer I. A. El-Monier; I. A. El-Monier Texas A&M University Search for other works by this author on: This Site Google Scholar H. A. Nasr El-Din H. A. Nasr El-Din Texas A&M University Search for other works by this author on: This Site Google Scholar Paper presented at the SPE…
The waterside corrosion kinetics of Zircaloy-4 are accelerated in pressurized water reactors (PWRs) in comparison with autoclaves. Beyond this comparison, an enhancement of oxidation rate—called phase III—can be observed from the third reactor cycle. This results in significant oxide thicknesses at high burnups. Sever…
The aim of the present research is to study the effect of cadmium addition on microstructure and wear behavior of the alloy (Al-12%Si) under dry sliding conditions. Wear behavior was studied by using the Pin-On- Disc technique under different conditions at applied loads 5-20 N, at constant sliding speed and in constan…