Materials Literature
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Brillouin light scattering technique can be successfully used to determine the whole set of elastic and piezoelectric constants of a ZnO single crystal irradiated by different laser energy densities, into a micron range (radiation layer thickness). It is found that the scattering intensity, the linewidth and the Brill…
ABSTRACT SCALE UP OF CERAMIC WASTE FORMS FOR THE EBR-II SPENT FUEL TREATMENT PROCESS Matthew C. Morrison, Kenneth J. Bateman, Michael F. Simpson Idaho National Laboratory, P.O. Box 1625, Idaho Falls, ID 83415 The ceramic waste process is the intended method for disposing of waste salt electrolyte, which contains fissi…
0.36(BiSc(1-x)Ga x O3)-0.64PbTiO3(BGSPT64-x, x = 0.001, 0.003, 0.005, 0.008, 0.01, 0.015, 0.02) solid solutions were prepared by conventional solid state reaction method. The results of x-ray diffractions revealed that the introduction of the Ga didn't change the perovskite structure of the solid solutions. The dielec…
Excellent magnetocaloric effect with a maximum entropy change and refrigeration capacity of 17.6 J·kg −1 ·K −1 and 546 J·kg −1 , respectively, has been discovered in the Er 60 Al 18 Co 22 bulk metallic glass under the field of 50 kOe in the temperature range of helium liquefaction. This MCE results from the second-ord…
The tight-binding molecular dynamics simulations and reverse Monte Carlo structural modeling method were applied in order to investigate the existence of small bond angles (like those in triangles and squares) in amorphous silicon networks. The influence of small bond angles on the electronic density of states was ana…
Polymers have been studied since 1979 with 8-12 keV synchrotron radiation X-ray scattering methods and the number and sophistication of the experiments have rapidly grown ever since. More recently, new experimental techniques have been developed that use softer or harder X-rays in less conventional ways. This article…
We study the influence of annealing temperature on the structural and optical properties of ZnO. Zinc oxide films were prepared by thermal oxidation of metallic Zn films. First, high quality (5N) Zn was evaporated onto sapphire substrate. Then zinc films were annealed in the oxygen atmosphere at several temperatures f…
The advanced optical and electronic characterization of primary F-defects and metallic lithium colloids in lithium fluoride thin films produced by ion-assisted thermal deposition with Xe low-energy ions (< 200 eV) on transparent amorphous substrates is presented and discussed. The volume concentrations of defects and…
Carbon Nanostructures Grown on Fe-Cr-Al Alloy The morphology and nanostructure of carbon nanotubes (CNTs), synthesized directly on Fe-Cr-Al-based alloy substrate using an alcohol catalytic chemical vapour deposition method (ACCVD), were examined by transmission electron microscopy (TEM). The grown CNTs were entangled…
We propose a cloaking and illusion device of circumferential topology based on the concept of transformation optics. The device is capable to cloak an object and/or simultaneously generate illusion images along a circumferential direction in curvilinear orthogonal coordinates. This feature allows us to construct multi…
This work presents the synthesis and characterization of a series of substituted pyridylpentafluroporphyrins, including the separation of the cis- and trans-isomers, the latter being characterized by X-ray crystallography. The spectroscopic and electrochemical properties of the series are dependent on the number of el…
The molecular refractions and characteristics of the circular dichroism spectra of unactivated and chromium_activated La 3 Ga 5.5 Ta 0.5 O 14 , La 3 Ga 5.5 Nb 0.5 O 14 , La 3 Ga 5 GeO 14 , La 3 Ga 5 SiO 14 , Sr 3 Ga 2 Ge 4 O 14 , and Ca 3 Ga 2 Ge 4 O 14 crystals are compared with their structural parameters. Correlati…
We report on the direct observation of enhanced field emissions from patterned ZnO nanocones compared with the plain geometry of ZnO nanocones. For the unambiguous comparison of field emissions from patterned nanocones and plain(nonpatterned) nanocones, periodic arrays of ZnO nanowires were fabricated on Si by photoli…
Label-free immunosensors based on aptamer-modified graphene field-effect transistors (G-FETs) were realized. Immunoglobulin E (IgE) aptamers were functionalized on the graphene surface. From atomic force microscopy, functionalized IgE aptamer with approximately 3 nm height was observed. And the drain current of the G-…
Densities of Mn ions in epitaxial layers of (Ga,Mn)As were determined by anomalous x-ray diffraction, i.e., by a measurement of the dependence of the intensity of weak diffraction 002 on the photon energy around the Mn K absorption edge. From the measured data it was possible to determine the density of Mn ions in sub…
The classification of optical glass and empirical relations between the refractive index and its dispersion are discussed in terms of moments of the glass's IR and UV absorption spectra. The observed linear dependence of index on dispersion within glass families is shown to arise primarily from the approximately linea…
Nanocrystalline single-phase RAlO 3 (R = Nd, Sm, Eu, Dy, Gd) has been prepared by modified Pechini's method. Malic acid has been used for the first time as a new complexing agent in the sol-gel process. It has facilited a low temperature synthesis of the compound. The characterization of the nanoparticles has been car…
Several topologies have been proposed for combining batteries and ultracapacitors (UC) to build a hybrid energy storage system (HESS). It is essential to quantify the performance benefits of these different circuit topologies. This will establish a metric for evaluating the performance of new topologies as well as pro…
It has been found that the plasma flow generated by quasistationary plasma accelerators can be used for simulation of high energy plasma interaction with different materials of interest for fusion experiments. It is especially important for the studies of the processes such as ELMs (edge localized modes), plasma disru…
The inhibition effect of different concentrations of benzamide (BA), sulfanilamide (SA), and thioacetamide (TA) on the corrosion of aluminium in 0.1 M NaCl solution was investigated by the methods of potentiodynamic polarization, electrochemical impedance spectroscopy, and SEM (scanning electron microscope) in this st…