Results 21 to 30 of about 69,313 (280)
The interplay of sedimentation and crystallization in hard-sphere suspensions [PDF]
, 2013 We study crystal nucleation under the influence of sedimentation in a model of colloidal hard spheres via Brownian Dynamics simulations. We introduce two external fields acting on the colloidal fluid: a uniform gravitational field (body force), and a ...
Bonn, Daniel +3 more
core +4 more sources
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
On the hard sphere model and sphere packings in high dimensions [PDF]
, 2018 We prove a lower bound on the entropy of sphere packings of $\mathbb R^d$ of density $\Theta(d \cdot 2^{-d})$. The entropy measures how plentiful such packings are, and our result is significantly stronger than the trivial lower bound that can be ...
Jenssen, Matthew +2 more
core +2 more sources
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
About the crystallization centers of metal melts
Литьë и металлургияIt is shown that the main modifying intermetallides of primary microcrystals of aluminum alloys do not satisfy the principle of structural and dimensional correspondence.
E. I. Marukovich +2 more
doaj +1 more source
NANOSTRUCTURAL PROCESSES OF MELTING AND MOULDING OF CAST IRON WITH GLOBULAR GRAPHITE
Литьë и металлургия, 2017 It is shown that melting and molding of cast iron with globular graphite are complex physical and chemical nanostructural processes. The major role in these processes is played by the centers of crystallization of dendrites of graphite, graphite ...
E. I. Marukovich, V. Yu. Stetsenko
doaj +1 more source
History dependent crystallization of Zr41Ti14Cu12Ni10Be23 melts [PDF]
, 2000 The crystallization of Zr41Ti14Cu12Ni10Be23 (Vit 1) melts during constant heating is investigated. (Vit 1) melts are cooled with different rates into the amorphous state and the crystallization temperature upon subsequent heating is studied. In addition,
Johnson, William L., Schroers, Jan
core +1 more source
ALUMINIUM BRONZE. NANOSTRUCTURAL PROCESSES OF MELTING AND MOULDING
Литьë и металлургия, 2018 It is shown that melting and molding of aluminum bronze are difficult physical and chemical processes. In them the major role is played by the centers of crystallization of dendrites of a a-phase, the a-phase nanocrystals dissolved and the adsorbed ...
E. I. Marukovich, V. Yu. Stetsenko
doaj +1 more source
Dipole-Center in ZnSe Crystals
Ukrainian Journal of Physics, 2022 It has been found that the well-known luminescence band with a maximum near 630 nm in undoped ZnSe crystals is associated with the recombination of free electrons at localized holes and free holes at localized electrons. The result was achieved by comparing experimental values for the stationary luminescence intensity with the phosphorescence and ...
Degoda, V.Ya. +5 more
openaire +1 more source
Density waves theory of the capsid structure of small icosahedral viruses
, 2006 We apply Landau theory of crystallization to explain and to classify the capsid structures of small viruses with spherical topology and icosahedral symmetry.
D. L. D. Caspar +8 more
core +3 more sources