Results 21 to 30 of about 69,417 (298)

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

Interfacial Crystallization within Liquid Marbles

open access: yesCondensed Matter, 2020
We report interfacial crystallization in the droplets of saline solutions placed on superhydrophobic surfaces and liquid marbles filled with the saline. Evaporation of saline droplets deposited on superhydrophobic surface resulted in the formation of cup-
Edward Bormashenko   +3 more
doaj   +1 more source

Cluster glasses of ultrasoft particles [PDF]

open access: yes, 2012
We present molecular dynamics (MD) simulations results for dense fluids of ultrasoft, fully-penetrable particles. These are a binary mixture and a polydisperse system of particles interacting via the generalized exponential model, which is known to yield
Allen M. P.   +6 more
core   +4 more sources

Phase-separation phenomena in solutions of poly(2,6-dimethyl-1,4-phenylene oxide). III. Pulse-induced critical scattering of solutions in toluene [PDF]

open access: yes, 1977
For the polymer-solvent system poly(phenylene oxide) in toluene the mechanism and kinetics of crystallization have been studied with the Pulse Induced Critical Scattering technique. It was found that after a delay-time the growth mechanism was diffusion
Gordon, M.   +2 more
core   +2 more sources

Modeling fractal crystals forming on the surface of stainless steel by cellular automata [PDF]

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2018
In this paper experiments on crystallization from melts and results of analysis of the morphology of formed crystal structures are discussed. Some examples of forming complex dendritic formations are shown. Different types of the crystal morphology arise
A.A. Burtsev, O.Ya. Butkovskii
doaj   +1 more source

Phase, microstructure and service character of as-deposited and short-time heat-treated Ni-Mo alloys with mixed state.

open access: yesPLoS ONE, 2021
Considering the amorphous and nano-crystalline cluster structure and their activity, on the basis of the mixed structure Ni-Mo alloys, the crystallization kinetics of the alloys and the performance of the alloys after heat treatment with different mixed ...
Hong Xu   +4 more
doaj   +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

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

Scientific problem of modifying of primary crystals a -phase of silumin castings. Solutions

open access: yesЛитьë и металлургия, 2019
It is shown that intermetallic metals of the modifying ligatures are not the crystallization centers of primary crystals of a a-phase. As the main demodifier serves hydrogen dissolved in liquid silumin.
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

Home - About - Disclaimer - Privacy