Jamming of Nano-Ellipsoids in a Microsphere : A Quantitative Analysis of Packing Fraction by Small-Angle Scattering

The packing of particles is ubiquitous, and it is of fundamental importance, particularly in materials science in the nanometric length scale. It becomes more intriguing when constituent particles deviate from spherical symmetry owing to the inherent complexity in quantifying their positional and ro...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 38(2022), 12 vom: 29. März, Seite 3832-3843
1. Verfasser: Das, Avik (VerfasserIn)
Weitere Verfasser: Mondal, Ranajit, Sen, Debasis, Bahadur, Jitendra, Satapathy, Dillip K, Basavaraj, Madivala G
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2022
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article
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520 |a The packing of particles is ubiquitous, and it is of fundamental importance, particularly in materials science in the nanometric length scale. It becomes more intriguing when constituent particles deviate from spherical symmetry owing to the inherent complexity in quantifying their positional and rotational correlation. For quantitative estimation of packing fraction, it requires a thorough analysis of the positional correlation of jammed particles. This article adopts a novel approach for determination of the packing fraction of strongly correlated nano-ellipsoids in a microsphere using small-angle scattering. The method has been elucidated through a quantitative analysis of structural correlation of nano-hematite ellipsoids in 3D micrometric granules, which are realized using rapid evaporative assembly. Owing to the deviation from spherical symmetry, the conventional analysis of scattering data fails to interpret the actual packing fraction of the anisotropic particles. The structural correlation gets smeared out because of orientation distribution among the packed anisotropic particles, which leads to an anomaly in the estimation of packing fraction using the conventional analysis approach. It is illustrated that consideration of an interparticle distance distribution function of the correlated nano-ellipsoids becomes indispensable in determining their packing fraction 
650 4 |a Journal Article 
700 1 |a Mondal, Ranajit  |e verfasserin  |4 aut 
700 1 |a Sen, Debasis  |e verfasserin  |4 aut 
700 1 |a Bahadur, Jitendra  |e verfasserin  |4 aut 
700 1 |a Satapathy, Dillip K  |e verfasserin  |4 aut 
700 1 |a Basavaraj, Madivala G  |e verfasserin  |4 aut 
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