Materials Literature
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Polycrystalline ceramic samples of pure and Zr +4 doped Bi 4 V 2-x Zr x O 11 (x=0.0 and 0.06) have been synthesized by standard solid state reaction method using high purity oxides. The dielectric constant and dielectric loss and hence ac conductivity as a function of frequency and temperature have been measured. The…
X-ray diffraction measurements using synchrotron radiation on liquid Si x Te 1−x ( x ≥0.2) were carried out at several temperatures. At constant temperature, the first peak, which is composed of Si-Te and Te-Te correlations, of the pair distribution function gradually shifts to the shorter distances with increasing Si…
X-ray magnetic diffraction experiments of a ferromagnetic rare-earth compound CeRh3B2 have been performed, and the spin and orbital magnetic form factors have been measured. Density distributions of the spin and orbital magnetic moments in real space have been obtained by using Maximum Entropy Method. Low peaks at Rh…
The antimony-based partially-filled skutterudite compound Mm x Co 4 Sb 12 (Mm=mischmetal) are expected for n-type thermoelectric materials with high-perfomance and low-cost. In order to prepare high-quality samples of the compound, synthesizing processes at high pressures and high temperatures have been studied by mea…
Dielectronic recombination rate coefficients are given theoretically for several highly charged tungsten ions. As 4p open sub-shell ions, Ga-, Ge-, As-, Br-, Kr-like ions are considered. Rb-like ion is further considered as a 4d open sub-shell ion. Theoretical calculations are carried out using a relativistic atomic c…
Radiation-induced primary radicals in lithium formate. A material used in EPR dosimetry have been studied using electron paramagnetic resonance (EPR), electron nuclear double resonance (ENDOR) and ENDOR-Induced EPR (EIE) techniques. In this study, single crystals were X irradiated at 6-8 K and radical formation at the…
Total reflection XAFS spectra are obtained combining with dispersive XAFS (DXAFS) configuration. A total reflection DXAFS spectrum of 30 nm Co layer on Si substrate was measured in 4 ms. Kramers-Kronig analysis was applied to extract XAFS signal from total reflection spectra. Spectra obtained by this method are compar…
We have constructed a soft X-ray diffractometer with a 7.5-T superconducting magnet in order to study ordered electronic structures under high magnetic field. In this paper, we present the features of this system and an example of resonant soft X-ray scattering measurement under the magnetic field of (LaMnO 3 ) 3 (SrM…
In the present work, zirconia (ZrO2) nanopowders doped with yttria (Y2O3) and chromia (Cr2O3) were prepared by a co-precipitation technique. The nanopowders were then subjected to a calcination and a successive sintering at elevated temperatures up to 1500 °C. The nanostructures in these nanomaterials were characteriz…
Surface‐enhanced Raman scattering studies were performed using nonresonant (514.5 nm) and resonant (676.4 nm) optical excitations on single‐walled carbon nanotubes thoroughly separated into semiconducting (pure 99%) and metallic (pure 98%) components. Regardless of the support (Au or Ag), the metallic nanotubes do not…
We investigate a simple fabrication method for vapor coating small-molecule organic interlayers as replacements for metal oxide films. The interfacial layers, which serve both as both surface modifiers to reduce the substrate work function and electron selective layers, maximize light absorption within the active laye…
We study the non-equilibrium (NE) fluctuation-dissipation (FD) relations in the context of quantum thermoelectric transport through a two-terminal nanodevice in the steady-state. The FD relations for the one- and two-particle correlation functions are derived for a model of the central region consisting of a single el…
In this study, a simple method to purify lysozyme was introduced, based on combination of conventional processes, including thermal treatment is electric point precipitation and gel chromatography. The sample was purified well by compared with lysozyme standard and no other proteins appeared in Sodium Dodecyl Sulfate…
STATEMENT OF PROBLEM: Prior investigations into dimensional shrinkage of fast-cast post-and-cores resulted in variable dimensions. There is a need for consistent shrinkage of cast post-and-cores to reduce or eliminate lateral stresses on the remaining tooth structure. PURPOSE: The purpose of this research was to find…
The angular distribution of Kr 4 p photoelectrons was measured with linearly polarized synchrotron radiation in the function of the photon energy. The shape of the measured angular distributions indicates the presence of octupol interaction.
Interdiffusion plays a significant role in the formation and stability of metallic joints and coatings. It is also of critical importance in designing advanced materials. Because commercial alloys are usually multicomponent, the key target is prediction of a complex morphology of the diffusion zone which grows between…
Abstract Review: MXenes: early transition metal carbides or carbonitrides resulting from the selective removal of the A element from ternary carbides called MAX phases like Ti2AlC, Ti3AlC2, or Ta4AlC3; 70 refs.
The synthesis and structures of four new iron(III) amine-bis(phenolate) complexes are reported. Reaction of anhydrous FeCl3 with the diprotonated tridentate ligand isopropyl-N,N-bis(2-methylene-4-t-butyl-6-methylphenol) (H2L1) and NEt3 produces the trigonal bipyramidal iron(III) complex [NEt3H]+ [FeCl2L1]– (1). The re…
The solubilities of 4-amino-3,6-dichloropyridazine (ADCP) in an ethanol + water mixture were determined from (303.15 to 323.15) K with an interval of 2.5 K at atmospheric pressure using the synthetic method with a laser monitoring observation technique. The solubility of ADCP was found to increase with the rise of tem…
The recycling of carbon fiber‐reinforced resin matrix composites is attracting more and more attentions, and many mechanical, chemical, and energy recycling methods have been proposed. Among those methods, supercritical solvent recycle technique has been developed recently. Hygrothermal treatment was applied first to…