Materials Literature
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The crystal structure of a new mixed-valence Cu(III)/Cu(I) compound containing the ligand pds2− (pds, pyrazine-2,3-diselenolate) shows a unique packing pattern with 2D layers formed by the coordination of the Cu(I) countercations to both the pyrazine N and Se atoms of the [CuIII(pds)2]− complex, with a distorted squar…
Recent developments in the understanding of order-disorder and displacive type transitions are presented. It is shown that classical order-disorder type transitions like those in squaric acid and KDP contain in addition to the order disorder also a displacive component in the phase transition mechanism. Similarly clas…
Statistical methods for the dimensioning and specification of insulators with respect to pollution have formed the subject of many studies. However, such methods are not in widespread use due to its perceived complexity. A simple method is introduced for the dimensioning and verification of insulators with respect to…
The relationship was explored between nanoscale voids in anodic aluminum oxide films and the surface condition of aluminum samples prior to anodizing. Transmission electron microscopy (TEM) detected voids on the order of 10 nm in anodic films. Atomic force microscopy (AFM) of these films, obtained after partial oxide…
A novel structural behavior of strontium aluminate synthesized by spray pyrolysis was found from the structural dependence of on the Eu concentration. Results revealed that all of the as-sprayed samples were a mixture of the structures of monoclinic and hexagonal phases. However, the structural behavior of the postann…
Introduction: History, Motivation.- 1. Finite Generalized Quadrangles.- 2. Elation Generalized Quadrangles, Translation Generalized Quadrangles and Flocks.- 3. The Known Generalized Quadrangles.- 4. Substructures of Finite Nets.- 5. Symmetry Class I: Generalized Quadrangles with Axes of Symmetry.- 6. Symmetry Class II…
doi:10.1088/0953-8984/16/49/001 A two dimensional lattice gas model with a ‘core-softened ’ potential is investigated. Two liquid phases and density anomaly are found. The demixing phase transition between the two liquid phases ends at a tricritical point that is also the terminus of a critical line. The density anoma…
In 2003, numerous advances were made in the area of inorganic polymer science. In the main group, highlights include the preparation of siloxane nanowires using gold nanoparticles, the addition polymerization inorganic multiple bonds, and the development of new σ- and π-conjugated polymers. Novel self-assembled cylind…
This book deals with the theory and experiment of the elementary process of bremsstrahlung, where photons are detected in coincidence with decelerated outgoing electrons. Such experiments allow for a more stringent check of the theoretical work. The main emphasis is laid on electron-atom bremsstrahlung and electron-el…
This article provides a short tutorial review of how laboratory powder diffraction methods can be used to establish a variety of "non-traditional" pieces of information about solid state materials-information beyond simple phase identification or structure determination at a specific temperature. The examples show how…
(SSC) porous electrodes supported on were studied using X-ray diffraction, scanning electron microscopy, impedance spectroscopy, and dc polarization. The addition of (LSGMC5) or (LSGMC11) into SSC improved its performance significantly. Two arcs could be identified in the impedance spectra of oxygen reduction over SSC…
Coaxial Zn/ZnO core–shell nanocable heterostructures with diameters ∼100 nm were synthesized via thermal reduction of ZnO by H2. The products were characterized by X-ray powder diffraction, scanning electron microscopy, transmission electron microscopy and cathodoluminescence. In some of the samples, an epitaxial rela…
The new methacrylate-substituted manganese carboxylate cluster [Mn12O12{CH2C(CH3)COO}16(H2O)4] having single molecule magnetic (SMM) properties was synthesized and fully characterized by X-ray crystallography, LDI-TOF, fast atom bombardment (FAB) analyses and magnetic measurements. This cluster, containing sixteen pol…
The diffusion of Co, Fe and Ni in single crystalline yttria stabilized zirconia (YSZ) containing 9.5 mol% Y2O3 was studied in the temperature range between 1373 and 1673 K using secondary ion mass spectroscopy. Two different types of diffusion sources were used: thin oxide layers made by spin coating with a thickness…
Four coumarin (2-oxo-2H-1-benzopyran) containing liquid crystalline polymethacrylates possessing the same monomer formula but different linkage directions and/or construction directions of their mesogens into the same main-chain were prepared and investigated. Each of the four polymers exhibits a smectic A liquid crys…
The use of graft copolymer of maleic anhydride polypropylene (MAPP) as a coupling agent in jute-polypropylene composites improved the mechanical properties of the composites. The scanning electron microscope (SEM) observations for fractured surfaces of unmodified and modified jute-polypropylene composites confirmed th…
In this paper comparative investigations of microstructure and dielectric properties of BaTiO3 ceramics doped with 1.0 wt% of Nb2O5, MnCO3 and CaZrO3 have been done. BaTiO3 samples were prepared using conventional method of solid state sintering at 13000C for two hours. Two distinguish micro structural regions can be…
Barium titanate (BT) nano-particles with different diameters were prepared by Sol-Gel method. The particle diameter was determined by XRD, and the lattice constants of nano-particles were also determined by XRD. We also measured the lattice vibration for BT nano-particles by Raman scattering to discuss on the size eff…
X-Ray absorption spectroscopy was used to probe the coordination of different encrypted cations in the Preyssler anions [M(n+)P5W(30)O(110)]((15-n)-)(M(n+)= Sr2+, Am3+, Eu3+, Sm3+, Y3+, Th4+, U4+ in decreasing order of ionic radius, IR), hereafter abbreviated [M(n+)PA](15-n)-. The increase of the M-W distance and the…
The copper(II) complex Cu(2)L(OMe)(H(2)O)(3), [middle dot]3H(2)O [H(3)L = 2-(2-hydroxyphenyl)-1,3-bis[4-(2-hydroxyphenyl)-3-azabut-3-enyl]-1,3-imidazolidine] was obtained and recrystallised in methanol to yield crystals of [[Cu(2)L(OMe)]](2).2.5MeOH.4H(2)O, 1.2.5MeOH.4H(2)O. Its single X-ray study shows that it contai…