Results 11 to 20 of about 18,367 (263)
Crystallization behavior and morphological features of ethylene-vinyl alcohol 44 copolymer
eXPRESS Polymer Letters, 2022 This work is a first attempt to study the crystallization behavior of ethylene-vinyl alcohol copolymer with 44 mol% of ethylene units (EVOH44) and to observe the supermolecular structures developed during its crystallization.
Clement Freymond +6 more
doaj +1 more source
Crystallization of the Reaction Center of Photosystem II [PDF]
Acta Crystallographica Section A Foundations of Crystallography, 1996 The reaction center of Photosystem II (RCII) is the large multi-subunit membrane protein-pigment complex which the site of the primary photochemical reactions of oxygenic photosynthesis. These reactions include charge separation, sequential electron transfer and oxygen evolution (1,2).
openaire +1 more source
Solutions of the scientific problem of modifying of foundry alloys
Литьë и металлургия, 2019 For a solution of the problem of modification of a microstructure of cast alloys it is necessary to accept admission that crystallization centers of crystals of phases are the crystalline buildups consisting of nanocrystals of phases.
E. I. Marukovich, V. Yu. Stetsenko
doaj +1 more source
Nanostructural crystallization of metals
Литьë и металлургия, 2021 Based on thermodynamic calculations, it is shown that metal crystallization is an equilibrium nanostructural process. At the beginning, trigonal or tetragonal structure-forming nanocrystals are formed from elementary nanocrystals.
E. I. Marukovich +2 more
doaj +1 more source
Surface Crystallization of Aqueous Salt Solution Under Overheating and Overcooling
MATEC Web of Conferences, 2016 The investigation of the surface crystallization with low negative and high positive temperatures were carried in the paper. Crystallization curves for distillate (Ts0 = −9 °C) and different mass salt concentrations NaCl (Ts0 = 80 °C) were obtained ...
Nakoryakov Vladimir +2 more
doaj +1 more source
NANOSTRUCTURAL PROCESSES OF MELTING AND CASTING OF CAST IRON WITH FLAKY GRAPHITE
Литьë и металлургия, 2017 It is shown that melting and casting of cast iron with flaky graphite are the complex physical and chemical nanostructural processes. The majorrole in these processis played by the centers of crystallization of dendrites of graphite, graphite ...
E. I. Marukovich, V. Yu. Stetsenko
doaj +1 more source
Crystallization features of casting alloys
Литьë и металлургия, 2023 It has been shown that elementary crystal lattices of basic phases and oxides of casting alloys do not satisfy the principle of structural and dimensional correspondence.
E. I. Marukovich +2 more
doaj +1 more source
Sub-lattice of Jahn-Teller centers in hexaferrite crystal [PDF]
Scientific Reports, 2020 AbstractA novel type of sub-lattice of the Jahn-Teller (JT) centers was arranged in Ti-doped barium hexaferrite BaFe12O19. In the un-doped crystal all iron ions, sitting in five different crystallographic positions, are Fe3+ in the high-spin configuration (S = 5/2) and have a non-degenerate ground state.
V. V. Gudkov +11 more
openaire +3 more sources
PROBLEMS OF MODIFICATION STEEL CASTINGS BY NANOPARTICLES
Литьë и металлургия, 2015 It is suggested to use steel shot with the structure of tempered martensite for smelt modifying in the capacity of carriermodifier. It was applied barrier nickel layer and then wolfram nano-coating (over 200 nm) along with protective cobalt layer, which ...
V. Kovalevskij +4 more
doaj +1 more source
NANOSTRUCTURIZATION IN FOUNDRY PROCESSES
Литьë и металлургия, 2018 It is shown that at crystallization of alloys the sophisticated nanostructural processes have place. The nanocrystals of phases, their atoms, the centers of crystallization of dendrites, surface-active elements, gases, modifying elements, poorly soluble ...
E. I. Marukovich, V. Yu. Stetsenko
doaj +1 more source