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Open AccessArticle

Small-Angle Scattering from Weakly Correlated Nanoscale Mass Fractal Aggregates

1
Joint Institute for Nuclear Research, Dubna 141980, Russia
2
Horia Hulubei, National Institute of Physics and Nuclear Engineering, Magurele, Bucharest 077125, Romania
Nanomaterials 2019, 9(4), 648; https://doi.org/10.3390/nano9040648
Received: 2 April 2019 / Revised: 17 April 2019 / Accepted: 18 April 2019 / Published: 22 April 2019
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Abstract

Formation of fractal aggregates is generally an undesired effect which may lead to end products with worse properties as compared to those of the individual components, especially in nanocomposite materials. Although several methods exist to overcome this issue, such as inclusion of additives, irradiation grafting or sonication, their effectiveness relies on a detailed knowledge of the structural properties of the aggregates. Here, small-angle scattering (SAS) technique is used and a theoretical model based on a unified Guinier–Porod approach with weak correlations is developed for investigating the structural properties of nanoscale fractal aggregates. It is shown how one can extract information concerning the correlation length/degree between aggregates, their fractal dimension and the overall size. These parameters can be used for development of various types of novel nanomaterials with pre-determined properties and functions. View Full-Text
Keywords: small-angle scattering; form factor; structure factor; fractals; aggregation small-angle scattering; form factor; structure factor; fractals; aggregation
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Mircea Anitas, E. Small-Angle Scattering from Weakly Correlated Nanoscale Mass Fractal Aggregates. Nanomaterials 2019, 9, 648.

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