Results 1 to 10 of about 655,886 (294)

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   +2 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

Single-bubble dynamics in nanopores: Transition between homogeneous and heterogeneous nucleation

open access: yesPhysical Review Research, 2020
When applying a voltage bias across a thin nanopore, localized Joule heating can lead to single-bubble nucleation, offering a unique platform for studying nanoscale bubble behavior, which is still poorly understood.
Soumyadeep Paul   +6 more
doaj   +1 more source

Sensitivity studies of dust ice nuclei effect on cirrus clouds with the Community Atmosphere Model CAM5 [PDF]

open access: yesAtmospheric Chemistry and Physics, 2012
In this study the effect of dust aerosol on upper tropospheric cirrus clouds through heterogeneous ice nucleation is investigated in the Community Atmospheric Model version 5 (CAM5) with two ice nucleation parameterizations.
X. Liu   +7 more
doaj   +1 more source

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