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Heterogeneity in homogeneous nucleation from billion-atom molecular dynamics simulation of solidification of pure metal [PDF]

open access: yesNature Communications, 2017
Nucleation is a fundamental physical process, however it is a long-standing issue whether completely homogeneous nucleation can occur. Here the authors reveal, via a billion-atom molecular dynamics simulation, that local heterogeneity exists during ...
Yasushi Shibuta   +5 more
doaj   +3 more sources

Igniting homogeneous nucleation [PDF]

open access: yesPhysical Review E, 2004
Transient homogeneous nucleation is studied in the limit of large critical sizes. Starting from pure monomers, three eras of transient nucleation are characterized in the classic Becker-D\"oring kinetic equations with two different models of discrete ...
A. Carpio   +12 more
core   +7 more sources

Nonisothermal homogeneous nucleation [PDF]

open access: yesThe Journal of Chemical Physics, 1992
Classical homogeneous nucleation theory is extended to nonisothermal conditions through simultaneous cluster mass and energy balances. The transient nucleation of water vapor following a sudden increase in saturation ratio is studied by numerically ...
Seinfeld, J. H., Wyslouzil, B. E.
core   +4 more sources

Experimental investigation of homogeneous nucleation of water in various gases using an expansion chamber [PDF]

open access: yesEPJ Web of Conferences, 2022
Nucleation is an integral part of phase transitions and plays an important role in technology. The control of nucleation in devices such as turbines, rocket and jet engines, wind tunnels, and combustion processes is key to achieving efficient ...
Lukianova Tetiana   +2 more
doaj   +1 more source

The analysis of the nucleation process of the lithium germanium phosphate glass [PDF]

open access: yesScience of Sintering, 2022
The nucleation process of lithium germanium-phosphate glass was studied to determine the temperature range of nucleation and the temperature of the maximum nucleation rate.
Matijašević Srđan D.   +6 more
doaj   +1 more source

Investigation of Effective Parameters on Self-Nucleation Phenomenon in Semi-Crystalline Polymers [PDF]

open access: yesBaspārish, 2022
The crystallinity of semi-crystalline polymers is affected by both nucleation and growth processes, and the nucleation phase controls the kinetics of crystallization. In general, there are two types of homogeneous and heterogeneous nucleation.
Zahra Yagoobi   +4 more
doaj   +1 more source

Size dependence of volume and surface nucleation rates for homogeneous freezing of supercooled water droplets [PDF]

open access: yesAtmospheric Chemistry and Physics, 2011
The relative roles of volume and surface nucleation were investigated for the homogeneous freezing of pure water droplets. Experiments were carried out in a cryogenic laminar aerosol flow tube using supercooled water aerosols with maximum volume ...
T. Kuhn   +3 more
doaj   +1 more source

Homogeneous and heterogeneous ice nucleation at LACIS: operating principle and theoretical studies [PDF]

open access: yesAtmospheric Chemistry and Physics, 2011
At the Leipzig Aerosol Cloud Interaction Simulator (LACIS) experiments investigating homogeneous and heterogeneous nucleation of ice (particularly immersion freezing in the latter case) have been carried out.
S. Hartmann   +7 more
doaj   +1 more source

Molecular Dynamics Simulations on Effect of Surface Roughness of Amorphous Substrate on Nucleation in Liquid Al

open access: yesMetals, 2022
In this study, we used molecular dynamics (MD) simulations to investigate the atomic ordering in the liquid aluminum (Al) adjacent to the amorphous substrate with smooth and rough surfaces.
Hua Men, Zhongyun Fan
doaj   +1 more source

Technical note: Identification of two ice-nucleating regimes for dust-related cirrus clouds based on the relationship between number concentrations of ice-nucleating particles and ice crystals [PDF]

open access: yesAtmospheric Chemistry and Physics, 2022
Large amounts of dust aerosols are lifted to the upper troposphere every year and play a major role in cirrus formation by acting as efficient ice nuclei.
Y. He   +9 more
doaj   +1 more source

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