Materials Literature
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Stress-strain curves of dynamic loading of VT6, OT4, and OT4-0 titanium-based alloys are constructed on the basis of experimental data, and the Johnson-Cook model parameters are determined. Results of LS-DYNA simulations of the processes of deformation and fracture of the fan casing after its high-velocity impact with…
This paper presents an anisotropic and mechanical strain-dependent model of magnetostriction in electrical steel sheets and its application in finite-element computations. The presented model is bidirectional and the data needed for its derivation is extracted solely from unidirectional measurements under mechanical l…
This paper deals primarily with modeling lifespan and, to a lesser degree, aging in insulation systems of electrical machines. The different aging processes involved, including partial discharges, are described. Previous works, in conjunction with the current study, are described and lead to the conclusion that there…
Based on the actual operational parameters of a subsea multiphase pipeline, an experimental study on the internal corrosion of a subsea multiphase pipeline was conducted in a dynamic, high-temperature autoclave, which had a similar environment to an actual field environment, using the partial pressure of CO 2 (P CO2 )…
Gelatin based composite films were prepared using various crosslinking agents for possible application in the food packaging industry. In the present study, gelatin films were formed by the incorporation of zinc oxide (ZnO) nanoparticles. The ZnO nanoparticles were synthesized by a wet chemical method using zinc nitra…
Abstract The rising market for substitute materials in high voltage insulation components is stimulated largely by the need to reduce overall costs. In this respect, polymer insulators offer significant advantages over old traditional materials. In the present research, efforts have been made to quantify the effect of…
This paper describes the electron backscatter diffraction (EBSD) technique used to characterize the microstructure (especially the morphology and constitution) of the base metal (BM), the heat-affected zone (HAZ) and the fusion zone (FZ) on a lean duplex stainless steel (LDX). This technique provides advantages due to…
The physicochemical properties of superparamagnetic iron oxide nanoparticles (SPIOs) enable their application in the diagnostics and therapy of central nervous system diseases. However, since crucial information regarding side effects of particle-cell interactions within the central nervous system is still lacking, we…
Textured Ca 3 Co 4 O 9 ceramics were prepared by spark plasma sintering (SPS) from commercial CaCO 3 and Co 3 O 4 powders to investigate the thermoelectric anisotropy of Ca 3 Co 4 O 9 . The degree of orientation of the textured specimens was evaluated by using the Lotgering factor method, and the SPS process was confi…
The present work was carried out to investigate separately the effect of Fe 2+ and Fe 3+ on the precipitation kinetics and the microstructure of CaCO 3 . For this an experimental procedure was proposed. Precipitation tests were made by using the dissolved‐CO 2 degassing method. Both air and nitrogen were employed to s…
Conducting polymeric-inorganic composite ion-exchange materials are now considered as an advanced class of materials due to their excellent ion-exchange behavior as well as their analytical and electroanalytical applications. In this study, electrically conductive nanocomposite of polyaniline Sn(IV) tungstomolybdate (…
We predict the adsorption proficiency of hexagonal boron nitride (h-BN) sheets to toxic gas molecules like CO 2 , H 2 S and NO 2 on the basis of first-principles density functional theory calculations. The computed energies predict the pristine h-BN sheet to have very little affinity towards the mentioned gas molecule…
Power consumption is one of the major issues in today's general life. But semiconductor is a great solution of this power consumption. If we success to use semiconductors in well manner then we can reduce power consumption. Peltier module is one of the best solutions for this. Air-conditioner carry 2000 or 3000 Watt p…
Priyanka Singh,1 Yeon Ju Kim,2 Hina Singh,1 Chao Wang,2 Kyu Hyon Hwang,3 Mohamed El-Agamy Farh,1 Deok Chun Yang1,2 1Department of Oriental Medicinal Material and Processing, 2Graduate School of Biotechnology and Ginseng Bank, College of Life Sciences, Kyung Hee University, Yongin, 3Gyeonggi-Do Agricultural Research &a…
A composite materials carbon nanosheets supported MnO2 nanorods exhibiting high capacitance performance can be fabricated by a simple and scalable method. The carbon nanosheets are easily obtained from the orange peel by carbonization at 800 oC, and MnO2 nanorods can be grown on the carbon nanosheets through the react…
BACKGROUND: The naturally-occurring phytochemical tannic acid (TA) has anticancer properties. We have demonstrated that estrogen receptor-positive (ER+) breast cancer cells are more sensitive to effects of TA than triple-negative breast cancer cells and normal breast epithelial cells. In the present study, cells were…
Stable aqueous dispersions with high concentration of silver nanoparticles were synthesized by a facile and green synthetic route by treating silver ions with aqueous Citrus limon extract, used as a reducing and capping agent. The formation and growth of silver nanoparticles, prepared by this simple and convenient met…
A Preisach-type vector hysteresis model is developed to represent anisotropic material characteristics under static and dynamic conditions. Bi- and uniaxial anisotropy are incorporated by generalizing the input projection of the vector model. Frequency-dependent eddy current and excess effects are considered by an add…
Interest in superprotonic crystals M m H n (XO4)(m + n)/2 (M = K, Rb, Cs, NH4; X = S, Se, P, As) is associated with the solution of the fundamental problem of modern condensed state physics, i.e., with the determination of the effect of the hydrogen subsystem on physicochemical properties of materials, including phase…
This paper investigates the effect of cell design on solid oxide fuel cells (SOFC) stack performance. Based on 3-dimensional numerical simulations, it is found that the performance of stack is strongly dependent on cell design. The average current density of the anode-supported SOFC (ASC) stack is only 5580 A m-2, a r…