Results 21 to 30 of about 69,355 (279)

NANOSTRUCTURIZATION IN FOUNDRY PROCESSES

open access: yesЛитьë 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

The interplay of sedimentation and crystallization in hard-sphere suspensions [PDF]

open access: yes, 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

On the hard sphere model and sphere packings in high dimensions [PDF]

open access: yes, 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

open access: yesЛитьë 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

open access: yesЛитьë и металлургия
It 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

open access: yesЛитьë 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]

open access: yes, 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

Density waves theory of the capsid structure of small icosahedral viruses

open access: yes, 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

ALUMINIUM BRONZE. NANOSTRUCTURAL PROCESSES OF MELTING AND MOULDING

open access: yesЛитьë 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

The structural organization and protein composition of lens fiber junctions. [PDF]

open access: yes, 1989
The structural organization and protein composition of lens fiber junctions isolated from adult bovine and calf lenses were studied using combined electron microscopy, immunolocalization with monoclonal and polyclonal anti-MIP and anti-MP70 (two putative
Ehring, GR   +3 more
core   +2 more sources

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