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Observation of Weibull, Lognormal, and Gamma Distributions in Electrodeposited Cu and Cu-Ag Particles.
Sun, Yunkai; Zangari, Giovanni.
Affiliation
  • Sun Y; Department of Materials Science and Engineering, University of Virginia, Charlottesville, VA 22904, USA.
  • Zangari G; Department of Materials Science and Engineering, University of Virginia, Charlottesville, VA 22904, USA.
Materials (Basel) ; 16(19)2023 Sep 28.
Article de En | MEDLINE | ID: mdl-37834589
ABSTRACT
In this work, the nearest-neighbor distances and Voronoi cell features of Cu-Ag deposits were analyzed and fitted with Lognormal, Weibull, and Gamma distributions. The nearest-neighbor distance distributions of the samples were compared with those of complete spatially random points, showing spatial inhomogeneity due to the nucleation exclusion effect. The radial distribution function was calculated, showing both influences from the grain size and the nucleation exclusion effect. Voronoi cells were generated based on the shape of the grains. The size, occupancy, and coordination of the Voronoi cells were examined and fitted. The results show that although the Cu-Ag deposits seemed to be governed by the instantaneous nucleation mode, the spatial distribution of the nuclei was more impacted by the nucleation exclusion effect than the Cu-only samples. This behavior is also justified by the grain size distribution generated with Voronoi cell size and occupancy distributions.
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Texte intégral: 1 Collection: 01-internacional Base de données: MEDLINE Langue: En Journal: Materials (Basel) Année: 2023 Type de document: Article Pays d'affiliation: États-Unis d'Amérique

Texte intégral: 1 Collection: 01-internacional Base de données: MEDLINE Langue: En Journal: Materials (Basel) Année: 2023 Type de document: Article Pays d'affiliation: États-Unis d'Amérique