Materials Literature
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ISHS IV International Symposium on Seed, Transplant and Stand Establishment of Horticultural Crops; Translating Seed and Seedling Physiology into Technology GERMINATION OF CRITHMUM MARITIMUM UNDER SALINE CONDITIONS
Pyrochlore structure oxide (La0.5Sm0.5)2(Zr0.9Ce0.1)2O7 was prepared by mixing the appropriate amounts of ZrO2, La2O3, Sm2O3 and CeO2, followed by reacting at 1600°C for 10 h. It was shown that the thermal conductivity was much lower than that of 8YSZ, which was mainly ascribed to the oxygen vacancies and lattice stra…
Ba 0.6 Sr 0.4 TiO 3 (BST) and Ba 0.6 Sr 0.4 TiO 3 / Ba ( Zr 0.2 Ti 0.8 ) O 3 / Ba 0.6 Sr 0.4 TiO 3 (BST/BZT/BST) multilayer (ML) films were prepared by pulsed laser deposition on the LaNiO 3 -coated LaAlO 3 substrate. X-ray diffraction analysis revealed that the two kinds of films could be epitaxially grown in pure si…
Abstract The texture and microstructure transformations during the annealing of highly cold-rolled silver, α-brass and phosphorus copper were studied using electron microscopy and calorimetry. The results imply that recrystallization is a superposition of several local processes which proceed in two stages. In all mat…
It has been determined that nanostructures of various modifications form during the pyrolysis of hydrocarbons at temperatures of 600° to 850°C in the matrix of iron‐chromic spinel. The research performed by means of electron microscopy, X‐ray diffraction, infrared spectroscopy, and electron spin resonance (ESR) showed…
The current theory of the strength of solids is supplemented by an account of thermodynamic linear tension and its variations in the course of crack growth. For the case of dispersion interactions, two mechanisms of crack growth are compared, i.e., the conformal mechanism (when the angle at the crack tip is conserved)…
Measurements of the maximum transmittance of an in‐plane switching liquid crystal display showed that it increases as rubbing angle is increased from 10 to 20°. This dependence was analysed in terms of the local variation of electric field intensity between electrodes, which in turn makes liquid crystal at various pos…
With citric acid as chelating agent, ethylene alcohol as etherification agent and water as solvent, NaNbO3 nanopowder was synthesized by citrate sol-gel method. The effects of amount of CA and EG, pH value on the stability of the precursor sol were investigated. The evolution of NaNbO3 crystal phase was also investiga…
To build their shells, brachiopods secrete a mixture of proteins and polysaccharides, collectively called the organic matrix. This matrix mediates the calcification process by allowing crystal nucleation followed by elongation and finally by stopping the crystal growth. Ultimately, the matrix controls the different mi…
Memory hysteresis, memory window and charge retention behaviour of an Al/Si3N4/Si structure with Si nanocrystals embedded in the Si3N4 layer are studied by fitting the results of a computer simulation to the experimental ones using simple analytical expressions. It is concluded that the current through the control nit…
Abstract By incorporating the constitutive equations based on classical plasticity and the mechanism-based strain gradient plasticity with finite element software, the stress–strain relationships and uniform elongations of Al polycrystals with different grain sizes were studied numerically. The calculation results ind…
Metastable phase relations in the PbO-GeO 2 system have been studied by DTA and X-ray powder diffraction. Metastable equilibrium was acquired during the solidification of a melt while it was slowly (at 8 K/min) cooled from temperatures slightly exceeding the critical value for a given composition. In the metastable eq…
The possibility of using spray pyrolysis as a simple, chemical, low cost method for the production of CeO 2 and MgO thin films widely used as buffer layers for second generation coated conductors was examined. CeO 2 films were produced on borosilicate glass substrates and four different surface morphologies were obser…
Polycrystalline vanadium oxide ( VO x ) thin films with mixed phases of V 6 O 13 + VO 2 (M) are deposited onto p-doped Si (100) substrates at 430°C using magnetron sputtering. By vacuum annealing on as-deposited VO x thin films at 450°C, at different annealing times we obtained nanoscale polycrystalline VO x thin film…
Complexation in Cu 2 [Fe(CN) 6 ]-gelatin-immobilized matrix implantates in contact with alkaline (pH > 10) aqueous solutions containing propane-1,3-dithioamide and butane-2,3-dione, as well as with an ethanolic solution containing the same organic compounds, was studied. It was found that room-temperature complexation…
Two kinds of ultra high temperature ceramics (UHTC), ZrB2-20Vol.%SiC and ZrB2-15Vol.% SiC-5Vol.% SiCn (nano-size) were prepared by spark plasma sintering (SPS). The residual strength was used to characterize thermal shock resistance of ZrB2-SiC ceramics by quenching tests in the water. The mechanism of thermal shock d…
Penetration and motion of rigid bodies in ground media attracts the researchers’ attention because of various problems arising as the technology evolves. In fact, there are two independent directions of studies in this field: (1) the problem of earth excavation when a rigid body of a definite shape slowly moves along…
The crystal structures of magnesiosadanagaite (MS) from Mogok, Myanmar, monoclinic, a 9.857(2), b 17.899(4), c 5.318(1) A, β 105.36(1)°, V 904.74(8) A 3 , C 2/ m , Z = 2, and potassic-ferrisadanagaite (FS) from the Ilmen alkaline massif, South Urals, Russia, a 9.9257(4), b 18.0917(7), c 5.3709(2) A, β 105.19(1)°, V 93…
The optical fiber doped with PbSe quantum dots has been experimentally developed. Three broad absorption peaks appeared, significant-one at 1094 nm and a good emission in 1537 nm band was obtained upon pumping at 980nm.
Possibility of modification of polyphenyleneisophthalamide with 5 wt % nanocarbon additive (fullerene, astralene, or graphite soot) was studied. The resulting composites were used to prepare asymmetric membranes, and the effect of carbon additives on the performance of these membranes was examined. Finally, the membra…