Materials Literature
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A reversible phase transition was found for iron‐deficient TlFe2–xSe2 (x ≈ 0.4) and investigated on single crystals using high temperature synchrotron radiation X‐ray diffraction. Full data sets have been collected at room temperature and at 200 °C to evaluate the structures. The high‐temperature form (space group I4/…
Structure–property relationships of polymeric materials require careful characterization of macromolecular properties. In this work we use 2-dimensional chromatography, coupling temperature gradient interaction and size exclusion chromatography, as well as density functional theory calculations to clarify that when po…
The Thirteenth East Asia-Pacific Conference on Structural Engineering and Construction (EASEC-13), September 11-13, 2013, Sapporo, Japan.
The authors present a novel in-situ method of fabricating crystalline gold nanoparticles by self-organization. This nanoparticles are grown and modified in a surrounding thin film matrix using two different host materials (YBa2Cu3O7-δ and SrTiO3) prepared by a pulsed laser deposition technique. The crystalline Au nano…
PbS quantum dots (QDs) with diameter of 2.9-7.4 nm were embedded into a porous matrix. The samples prepared by developed low-cost effortless method demonstrate linear dependencies of optical density and luminescence intensity on the QDs concentration and perfect homogeneity. Optical properties of quantum dots in the m…
Nonradiative fluorescence resonance energy transfer (FRET) between lead sulfide quantum dots (QDs) of two different sizes embedded in porous matrix is observed by a fluorescence spectroscopy. Analysis of decays of photoluminescence from QD mixture shows that energy transfer in studied systems is determined by static q…
The Thirteenth East Asia-Pacific Conference on Structural Engineering and Construction (EASEC-13), September 11-13, 2013, Sapporo, Japan.
The objective of this work is the construction of macroscopic models for electrochemically promoted catalytic systems, i.e. systems where the catalytic performance is improved by application of potential between the anode and cathode electrodes in the cell. This polarization effect leads to a formation of an effective…
In this work, we studied the distribution of V and Sb vacancies in the rutile-type vanadium antimonate phase and the influence of these cationic defects on the VSbO 4 (110) surface properties. We performed density functional theory (DFT) calculations to compute the energy stability of bulk supercells with different ge…
This chapter contains sections titled: Introduction Model Description Experimental Procedure Results Conclusions Acknowledgements
We report the formation of two-dimensional disordered arrays of poly(methyl)methacrylate (PMMA) microcolumns with embedded single size distribution of Lu0.990Er0.520Yb0.490 nanocrystals, (Er,Yb):Lu2O3, using a disordered porous silicon template. The cubic (Er,Yb):Lu2O3 nanocrystals, which crystallize into the cubic sy…
Abstract 56π-Electron fullerene derivatives possessing both a hydrogen and an electron-withdrawing cyano addend were synthesized by the reaction of 58π-electron fullerenes with NaCN and subsequent protonation and used as acceptors in bulk heterojunction solar cells containing a low-band-gap polymer donor. The device s…
In the current study, hot melt pressure sensitive adhesives (HMPSA) were prepared by blending polystyrene-hydrogenated (3,4-polyisoprene and 1,4-polyisoprene)-polystyrene (HYBRAR7311), polymethyl methacrylate-polybutyl acrylate-polymethyl methacrylate (LA2250), tackifier, and other additives in an internal mixer. The…
Shape-memory polyurethane (SMPU) having segmented structure, with 4,4-diphenylmethane diisocyanate as hard segment, poly caprolactone diol 4000 as soft segment, and 1,4-butane diol as chain extender was synthesized using two-step polymerization technique. This pure SMPU was blended with unmodified and modified multiwa…
Abstract Phase equilibrium in the Ca‐Mn‐Sb‐O system was studied in air at the temperature range from 1160 to 1250 °C and a pseudo‐quaternary phase diagram for the system CaO‐MnO‐Mn2O3‐Sb2O5 is presented. The following compounds were discovered: new antimonate Ca7Sb2O12 with a perovskite‐like structure, solid solutions…
We performed an experiment to study the role of anisotropy in interfacial energy during the coarsening of a complex oxide CaCu 3 Ti 4 O 12 (CCTO) material system. When we altered the interface anisotropy, we observed that evolution and sizes of spherical grains completely altered to facetted cubes. When interface beca…
In the field of crystal plasticity, the two decades 1950–1969 were a time of great activity, in which the foundations were laid for our present understanding of the work-hardening of face-centred cubic metals in terms of dislocation mechanisms. Decisive developments were the ‘invention’ of the Frank–Read source, the r…
Neste trabalho, foram avaliadas as propriedades físicas da madeira e de painéis aglomerados produzidos com Mimosa scabrella Bentham (bracatinga) e Hovenia dulcis Thunb (uva-do-japão), visando estabelecer parâmetros para sua utilização em misturas com madeira de Pinus taeda L. (pinus) e de Eucalyptus saligna Smith (euc…
O objetivo deste estudo foi analisar o efeito da posição do colmo e da idade nas propriedades mecânicas de flexão estática e compressão paralela às fibras do bambu-mossô (Phyllostachys pubescens), correlacionando a densidade aparente com as propriedades avaliadas. Os corpos de prova utilizados nos ensaios foram produz…
A thermodynamic model is used to investigate the conditions under which clathrin triskelions form polyhedral baskets. The analysis, which is similar to classical methods used to study micelle formation, relates clathrin basket energetics to system parameters linked to triskelial rigidity, the natural curvature of an i…