Materials Literature
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This paper reports that La-doped BiFeO 3 (Bi 1− x La x FeO 3 , x = 0, 0.1, 0.2, 0.3, 0.6, 0.8 and 1.0) were studied by using micro-Raman spectroscopy and x-ray diffraction (XRD). The XRD patterns indicate that the structure of Bi 1− x La x FeO 3 changes from rhombohedral BiFeO 3 to orthorhombic LaFeO 3 . The results o…
Substituting Pu(IV) onto the Ca site and using Fe(III) as a charge balancing species, a series of 6 compositions of 239 Pu doped zirconolite (of general formula (Ca 1−x Pu x )Zr(Ti 2-2x Fe 2x )O 7 ) have been fabricated, where x = 0.1, 0.2, 0.3, 0.4, 0.6 and 0.7. Sintered pellets from each of these compositions have b…
Abstract Body‐centered‐tetragonal (BCT) ZnS nanocrystals have been synthesized, for the first time to the best of our knowledge, by using the chemical coprecipitation method at higher synthesis temperatures of 65 and 95 °C. It is confirmed from X‐ray diffraction (XRD) studies that in the high‐temperature‐synthesized s…
The reaction of the tert-butyl-substituted triplesalen ligand H 6 talen t-Bu2 with Mn II (OAc) 2 ・ 4H 2 O and K 3 [Co III (CN) 6 ] results in the formation of the heptanuclear complex [{(talen t-Bu2 )- (Mn III (MeOH)) 3 } 2 {Co III (CN) 6 }](PF 6 ) 2 (OAc)・11MeOH ([Mn III 6 Co III ](PF 6 ) 2 (OAc)・11MeOH, 1 ・11MeOH),…
Electric field induced strain is one of the most important performance parameters for multilayer ferroelectric actuators. In these devices, donor doped morphotropic lead zirconate titanate (PZT) ceramics are the materials currently used. Strain and, more general, electromechanical properties of these piezoceramics are…
In the process of fabrication of polymer photovoltaic (PV) devices, poly (3, 4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS) thin film, acting as an anode buffer layer, is spin-coated under the action of an electric field. The PV devices with a PEDOT:PSS layer spin-coated under the action of a static ele…
Z-type barium ferrite flakes were prepared for use as fillers in electromagnetic attenuation composites. The composites with the flaky fillers exhibit greatly enhanced complex permeability, thus achieving an ultrabroad attenuation bandwidth. μ0′ and μmax″ are enhanced by above 150%, and the relative bandwidth WR of 6–…
The reactions of unsymmetrical porphyrins (1 and 2) with Ni(OAc) 2 ·4H 2 O in boiling DMF produce porphyrin complexes (3 and 4). From the reactions of free porphyrin ligands 1 and 2 with hexachlorocyclotriphosphazatriene, N 3 P 3 Cl 6 , the new free porphyrino-phosphazene derivatives (5 and 6) are obtained. On the oth…
Hf6Ta2O17 ceramic powder was prepared by solid state reaction at 1600°C for 10 hours. The phase and microstructure of Hf6Ta2O17 ceramics were observed. The XRD results revealed that the sintered sample of the ceramic powder had single phase and the SEM results showed that the sintered sample was comparative dense. The…
CO is a useful probe in the characterization of surface properties of both metal and metal oxide via adsorption. Adsorption of CO was used to monitor the possible active site of an Au/TiO 2 catalyst for the CO oxidation reaction. CO adsorption on the reduced catalyst results in the band at 2104 cm −1 indicative of Au…
We propose a transparent conductor (TC) structure based on the combination of ultrathin Cu and Ti films. The conductive Cu layer becomes continuous, i.e., it reaches the percolation threshold, for thicknesses in the range of 5.5–6.5 nm. However, without any adequate countermeasure, such an ultrathin layer would unavoi…
We report spin reorientation transitions in a Fe3O4/BaTiO3 heterostructure driven by strain at the structural phase transitions of BaTiO3. These spin reorientations result from the emergence of an in-plane uniaxial magnetic anisotropy. The magnetoelastic response of Fe3O4 to the variations in epitaxial strain that occ…
We have investigated the effect of Ce doping on the magnetic and low-temperature thermoelectric properties of Ca3Co4O9+δ. A small shoulder occurring at about 23 K in the dχ−1/dT curve indicates an occurrence of spin-density-wave transition, which is confirmed by resistance characteristics. With partial Ce substitution…
Ahmad, Z.; Pandey, R.; Sharma, S. & Khuller, G.K. (2006). Alginate nanoparticles as antituberculosis drug carriers: formulation development, pharmacokinetics and therapeutic potential. Indian journal of chest diseases and allied sciences, Vol. 48, No. 3, (July-September) 171-176, ISSN 0377-9343 Alexander, B.D. &am…
Three types of graphitic shelled-magnetic core (Fe, Fe/Co, and Co) nanoparticles (named as C-Fe, C-Fe/Co, and C-Co NPs) were synthesized by radio frequency-catalytic chemical vapor deposition (RF-cCVD). X-ray diffraction and X-ray photoelectron spectroscopy analysis revealed that the cores inside the carbon shells of…
To clarify the fragmentation mechanism of a molten metallic fuel jet in a sodium pool under highejection-velocityconditions that correspond to the medium- and high-burnup conditions in the metallic fuel core of liquid-metal-cooled fast breeder reactors, a series of experiments with molten copper as a metallic fuel sim…
By the method of chemical condensation a stable aqueous colloidal solution of nanoparticles of cadmium sulfide was obtained. The solution obtained in the daylight had a bright lemon-yellow color. For the temporary stabilization of the solution was used an organic complexone, disodium ethylenediaminetetraacetate (EDTA)…
In this work we investigate the presence of a torsional instability in single-wall carbon nanotubes which causes small diameter chiral carbon nanotubes to show natural torsion. To obtain insight into the nature of this instability, the natural torsion is calculated using an extended tight-binding model and is found to…
We give an overview of our recent work on improving the optical performance of polymeric materials via supramolecular concepts, i.e., by making use of spontaneous non-covalent interactions between the chromophores and the polymer backbone. More precisely, we show that the aggregation of dipolar chromophores in amorpho…
Abstract We are reporting our results of Raman and X‐ray diffraction (XRD) studies on amorphous Ge 46 S 54 thin films and the films after silver photodiffusion. Based on the Raman scattering studies, a structural model for amorphous Ge 46 S 54 is suggested including the formation of single Ge–S chains with a vibration…