Materials Literature
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This paper presents a low-frequency magnetoelectric response model of magnetoelectric laminate composites considering non-isometric strain. The stress and strain of the magnetostrictive and piezoelectric layers are analyzed by the stress function based on the shear stress transferring strain. Under the open circuit co…
Based on the thirteen similarities of structures of lattice, electron, and strong correlation Hamiltonian between CMR (colossal magnetoresistance) manganites and the high-Tc cuprates, this paper concludes that the Hamiltonian of the high-Tc cuprates and CMR manganites are the same. Based on uniform and quantitative ex…
The present paper's main work is firstly preparing a single layer and a large area polystyrene microspheres mask, with 117, 350 and 500 nm in diameter, and then depositing a layer of zinc oxide thin film on the mask board by RF magnetron sputtering technique, using nanospheres lithography technique to remove the polys…
By carrying out density functional theory (DFT) calculations, we studied the effects of Gedoping on the geometrical, electronic, and magnetic properties of carbon nanotubes (CNTs). Three different doping configurations were considered. All of these configurations were stable upon relaxation. It was found that the form…
The neutron flux throughout a reactor core should be calculated, ideally, by solving the neutron transport equation for a highly detailed geometric model of the core. Since this is computationally impractical, approximate node-homogenized models have historically been used whereby neutronic properties are averaged ove…
Bei einem Flug durch eine mit unterkühltem Wasser angereicherte Atmosphäre kommt es an der Flugzeugoberfläche zu Eisanlagerungen, welche die Flugeigenschaften negativ beeinflussen und Flugzeugkomponenten beschädigen oder ausfallen lassen können. Um dies zu verhindern und so die Flugsicherheit zu gewährleisten, werden…
【Nanohybrids of nylon 6 and nano-titania ( $TiO_2$ ) were prepared by melt compounding with a twin-screw extruder to investigate antibacterial activity. It was confirmed by field emission scanning electron microscopy (FESEM), energy dispersive spectrometry (EDS), and X-ray diffraction (XRD) that nano- $TiO_2$ was succ…
The objective of this research was to study microstructure characterization, mechanical properties, and corrosion behavior of friction stir welding AA5086 and AA6061. The microstructure of six distinct zones (NZ, TMAZ, HAZ, BM, downside, and cross-section) of friction stir welding AA5086-AA5086, AA5086-AA6061, and AA6…
Concrete is widely used in the construction of nuclear facilities because of its structural strength and its ability to shield radiation. The use of concrete in nuclear facilities for containment and shielding of radiation and radioactive materials has made its performance crucial for the safe operation of the facilit…
In this thesis we investigate the following problem: given a free group of a finite rank greater or equal to 2, and its non-cyclic finitely generated subgroup of infinite index, is it true that the relative growth rate of the subgroup is strictly less than the growth rate of the free group itself?
Jae Hyuck Jang, Qian He, Young-Min Kim, Donovan N Leonard, Amit Kumar, Sergei V Kalinin, Albina Y Borisevich; Uncovering Structure-Properties Relations in
B Volbert, G Renka, K Schock, A Lieb, M Dadras, S Kleindiek; Integrating 3D Surface Imaging with FIB/SEM Microscopy, Microscopy and Microanalysis, Volume 2
X-ray analysis has been widely performed as one of the most robust characterization approaches in scanning transmission electron microscopes (STEMs) for ~40 years because of its simple operation and interpretation nature. However, availability of X-ray signals is very limited due to a small analyzed volume, physically…
Bryan D Esser, Adrian J D’Alfonso, Manisha Dixit, Robert E A Williams, Hamish L Fraser, Leslie J Allen, David W McComb; Understanding B-Site Disorder in HA
We report on the morphological, electrical and optical characteristics of Carbon nanotube (CNT) films on different transparent substrates, obtained using spray deposition. The effect of different substrate materials on the characteristics of spayed CNT films with varying thickness is investigated. While film morpholog…
E Rotunno, V Grillo, T Markurt, T Remmele, M Albrecht; Methods for Scanning Transmission Electron Microscopy High Angle Annular Dark Field Based for Three
Many properties of nanoparticles (NPs) are closely tied to their size, shape, surface, and internal structures [1, Different synthesis methods can produce an array of NP sizes and shapes, but it is also desirable to have methods to modify existing NPs. Extensive research on ion beam induced surface modification of bul…
M H Sheen, M C Lee, J H Lee, Y W Kim; Investigation on Polarization Induced Electro-Optical Property of GaN LED Using TEM-EBIC Combined with Cathodolumines
Gold nanoparticles coated with amphiphilic block co-polymer PVP-VA are found to be extremely mobile in sand columns in laboratory based experiments. The ultra-stability obtained by such surface modification is also shown by diluting down to a concentration of 62.5 ppb in groundwater having other ions. Such a low level…
Philippe Bilas, Jean-Louis Mansot, Laurent Legras, Philippe Thomas, Marc Dubois, Andre Hamwi, Katia Guerin; FIB, TEM and AFM Quantitative Investigation of