Materials Literature
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Using recently proposed improvements of Reflection Electron Microsopy (REM) we study in perfectly controlled thermodynamics conditions spiral shapes and spirals on Si(111) surface. It is shown that the new method named low distortion reflection electron microscopy (LODREM) is a powerful instrument, resolving in much m…
In this chapter we review our findings on the bonding structure and growth mechanisms of carbon-based thin solid films with fullerene-like (FL) microstructure. The so-called FL arrangements arise from the curvature and cross-linking of basal planes in graphitic-like structures, partially resembling that of molecular f…
Alumina (Al 2 O 3 ) monoliths with well-defined macropores and mesostructured skeletons have been synthesized via a spontaneous route from the aqueous and ethanolic solution of aluminum salts in the presence of propylene oxide and poly(ethylene oxide) (PEO). The addition of propylene oxide to the starting solution con…
The minimal conductivity of graphene is a quantity measured in the dc limit. It is shown, using the Kubo formula, that the actual value of the minimal conductivity is sensitive to the order in which certain limits are taken. If the dc limit is taken before the integration over energies is performed, the minimal conduc…
This review focuses on the peculiarities of quasiperiodic order for the properties of photonic and phononic (sonic) heterostructures. The most beneficial feature of quasiperiodicity is that it can combine perfectly ordered structures with purely point-diffractive spectra of arbitrarily high rotational symmetry. Both a…
Growth of Sesbania seedlings in chloroaurate solution resulted in the accumulation of gold with the formation of stable gold nanoparticles in plant tissues. Transmission electron microscopy revealed the intracellular distribution of monodisperse nanospheres, possibly due to reduction of the metal ions by secondary met…
Templated self-assembly of a cylinder-forming poly(styrene-b-dimethylsiloxane) (PS-PDMS) diblock copolymer has been investigated for nanolithography applications. The large chi-parameter of the blocks and the use of a PDMS-brush substrate surface treatment are especially advantageous for achieving long-range ordering…
Bifunctional Fe 3 O 4 @Ag nanoparticles with both superparamagnetic and antibacterial properties were prepared by reducing silver nitrate on the surface of Fe 3 O 4 nanoparticles using the water-in-oil microemulsion method. Formation of well-dispersed nanoparticles with sizes of 60 ± 20 nm was confirmed by transmissio…
Hansen solubility parameters (HSPs) are used to predict molecular affinities, solubility, and solubility-related phenomena. Revised and updated throughout, Hansen Solubility Parameters: A User's Handbook, Second Edition features the three Hansen solubility parameters for over 1200 chemicals and correlations for over 4…
Abstract Metastable zonewidth and induction period measurements of Benzimidazole (BMZ) are presented. The nucleation parameters such as interfacial tension, radius of the critical nucleus and critical free energy change have been calculated for the solution grown Benzimidazole (BMZ) single crystals at different supers…
Abstract Crystal and molecular structures of a nematogenic compound 4‐( trans‐ 4‐undecylcyclohexyl) isothiocyanatobenzene (11CHBT) have been determined by direct methods using single crystal X‐ray diffraction data. The compound (C 24 H 37 N 1 S 1 ) crystallizes in the monoclinic system with the space group P2 1 /c and…
The authors have investigated the conformational structure of the ferroelectric liquid crystal compound 4-3-methyl-2-chloropentanoyloxy-4"-hexyloxy-biphenyl also known under the abbreviations 3M2CPHOB and C6 using vibrational (IR and Raman) spectroscopy. The measured spectra exhibit two bands corresponding to the C=O…
The Raman spectra of aqueous LnCl(3) x 20H(2)O x CH3(C)OOLi (LnCl(3), rare earth chloride) solutions have been measured in the liquid state. The change of the Raman symmetric Ln(3+)-OH(2) stretching band (v(w)) showed that the decrease in the ionic radius of rare earth (Ln(3+)) ions induces a change in coordination nu…
Copper – tungsten functionally graded material has been produced by Cu infiltration of a tungsten graded preform which is self formed through segregation effect in a weakly excited bimodal W granular media. Electrical and elastic properties of the final materials are strongly influenced by W microstructural evolution…
Crystal centering is a key step in macromolecular X-ray crystallography experiments. A new method using image-processing and machine-vision techniques allows the centering of small crystals in the X-ray beam. This method positions crystals even when the loop is initially out of the camera's field of view and adapts to…
Abstract In this article, we report the preparation and characterization of self‐doped conducting chitin, polyaniline blends by solution blending method. The characterization of the blends was done by UV–vis absorption spectrum, FTIR, and conductivity studies. Conductivity of the self doped blends increases from less…
Abstract Glycine phosphite [NH 3 CH 2 COOH 3 PO 3 ], abbreviated as GPI is the second hydrogen bonded ferroelectric crystal combination of phosphorous acid and amino acid following βnine phosphite crystals abbreviated as BPI. Sankaranarayanan and Ramasamy‐Technique was adopted to prepare the ferroelectric glycine phos…
Abstract Monomeric boranes and gallanes stabilized by guanidine derivatives undergo in certain cases H 2 elimination reactions leading in a first step to dinuclear E(III) hydrides (E = B or Ga) and in the second step upon elimination of further H 2 to dinuclear compounds with the elements in the formal oxidation state…
Abstract The production of II–VI semiconductor compound – polymer matrix nanocomposites by a direct in‐situ thermolysis process is described. Metal‐thiolate precursor molecules embedded in a polymer matrix decompose by a thermal annealing and the nucleation of semiconductor nanocrystals occurs. It is shown that the nu…
Corrosion in a high purity aqueous environment simulating a boiling water reactor (BWR) is addressed in this work. This condition necessitates autoclave experiments under high pressure and temperature. Long-term electrochemical noise measurements were explored as a mean to detect and monitor stress corrosion cracking…