Materials Literature
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We have encapsulated diarylethene (DAE) nanocrystals by polystyrene (PS) using soap-free emulsion polymerization. The resulting PS-encapsulated DAE nanocrystals had spherical shape and monodispersed size, and these nanocrystals clearly exhibited photochromism. In addition, PS-encapsulated DAE nanocrystals showed size-…
The concept "More than Moore" was introduced in the 2005 edition of the International Technology Roadmap for Semiconductors (ITRS), with the purpose to describe technology features that do not fit the miniaturization trends as implied by Moore's Law. These features typically enable non-digital functionalities, such as…
The carbon nanotubes (CNTs) functionalization for developing ceramic matrix composites with an optimum interface between the matrix and nanotubes is presented. The functionalization processes were successfully performed by means of oxidation and boron nitride and silicon oxide coatings, which were characterized, among…
Optically pure anionic complexes of pyridinecarboxamide ligands, N(2),N(6)-bis((R)-α-methylbenzyl)pyridine-2, 6-dicarboxamide H(2)(R,R-L(1)) and N(2),N(6)-bis((S)-1-methoxypropan-2-yl)pyridine-2, 6-dicarboxamide H(2)(S,S-L(2)) have been synthesised and fully characterised. The complexes: (18-crown-6)K[Co(III)(R,R-L(1)…
Variational principles are derived for multilayered orthotropic graphene sheets undergoing transverse vibrations based on the nonlocal elastic the-ory of orthotropic plates which provide a continuum model for graphene sheets. The variational formulation allows the derivation of natural bo-undary conditions which are e…
We describe the first example of a tri-phasic oil-in-water-in-air 'dry water emulsion'. The method combines highly stable oil-in-water emulsions prepared using branched copolymer surfactants, with aqueous droplet encapsulation using 'dry water' technology.
Eight homoleptic metal(III) arylchalcogenolate polymers [M(EPh-p-X)(3)](n) (M = Ru, Cr, and Mo) were characterized by PXRD. Structural solution of [Ru(SPh-p-tBu)(3)](n)1 was achieved by Rietveld refinement of the PXRD data. Pyrolysis of [Ru(SePh)(3)](n)4 produced nanostructured RuSe(2), which selectively catalyzed the…
Mechanism of successive ferroelectric–paraelectric phase transitions exhibited by an organic ferroelectric, trichloroacetamide, is clarified through structural and calorimetric experiments. The transition mechanism, intramolecular disordering, reasonably explains the polarization reversal. This mechanism is only possi…
The structural phase transitions of Rb2MoO4 and Rb2WO4 have been reinvestigated with the use of heat capacity measurement and synchrotron X-ray and neutron scattering techniques. In Rb2MoO4, the existence of polymorphous structures has been confirmed. These crystal structures at 290 K are a monoclinic β-K2MoO4 type on…
Monodisperse pure cubic ZrO2 nano-phase is selectively synthesized by employing Gd3+ as a nucleation agent in solution. The heteronucleation and growth mechanism as well as the phase selective effect are proposed for the formation of cubic ZrO2 nanocrystals. By changing the Gd3+ content, the size of ZrO2 nanocrystals…
Lithium intercalation and de-intercalation processes have been used to fabricate bulk Bi(2)Se(0.3)Te(2.7) with internal nanostructures. The doped Li content can be precisely controlled through this method. It provides a chance to directly optimize electrical properties when preparing nano-structured materials, leading…
In this work we present the experimental results on synthesis, structure evolution and in vitro bioactivity of collagen- silicocarnotite-chondroitin sulphate composites. The obtained samples were synthesised by mixing collagen (C) and silicocarnotite (S) powder with C:S ratio of 75:25 and 25:75 wt.% in the presence of…
The multi-technique approach in the spectroscopic photoemission and low-energy electron microscope (SPELEEM) has proven to be a powerful tool in studies of crystalline, chemical and magnetic structures at surfaces. The energy filtering offered by this instrument enables a variety of complementary analytical characteri…
Emission spectroscopy and electrochemistry has been used to probe the electronic communication between adjacent metal centres and the conjugated backbone within a family of imidazole based metallopolymers, [Ru(bpy)(2)(PPyBBIM)(n)](2+), in the ground and excited states, bpy is 2,2'-bipyridyl, PPyBBIM is poly[2-(2-pyrid…
The crevice corrosion resistance in high chloride and high acidic solution at high temperature in Ti-15Mo-5Zr and Ti-15Mo-5Zr-1Fe alloys and the tensile properties at ambient temperature in Ti-15Mo-5Zr-1Fe alloy were investigated in this study. The crevice corrosion resistance in Ti-15Mo-5Zr alloy with a Mo equivalenc…
In order to investigate the mechanism for the intergranular fatigue crack propagation of a low carbon steel in a low pressure hydrogen gas environment, two kinds of examinations were carried out. One examined the effect of the cyclic pre-strain on the crack growth behavior. The other was the in-situ observation of int…
Pure perovskite compound SrFeO3 nanocrystals were successfully synthesized in molten NaNO3–KNO3 eutectic with Na2O2 from a mixture of strontium nitrate and ferric nitrate. The effect of metal precursors, salt medium, annealing temperature (mainly 400–800°C), and oxidizing properties of the melt on the phase compositio…
The impact of the surface on the magnetic symmetry is studied. It is shown how symmetry breaking transforms the “seeding” 90 bulk magnetic classes, which include 66 piezomagnetic classes and 58 magnetoelectric classes, into the 21 surface-induced magnetic classes, which all are piezomagnetic, piezoelectric and 19 of t…
Improved corrosion resistance of steel sheets plated with zinciferous metal, and particularly 55% Al-Zn alloy coated steel sheets, has become necessary in recent years. However, 55% Al-Zn alloy coated steel sheets are susceptible to surface cracks during forming due to the hardness of the metallic coating. This resear…
Horomanite and samaniite are found in the interstices among grains of silicate minerals in lherzolite from the Horoman peridotite massif, Samani-cho, Hokkaido, Japan. The mean analytical data for the horomanite, as determined by electron-probe micro-analysis (EPMA), are Cu: 0.43, Fe: 41.82, Ni: 23.76, Co: 0.52 and S:…