Internal and interfacial microstructure characterization of ice droplets on surfaces by X-ray computed tomography.
Cassie-Baxter
Contact angle measurement
Hydrophobicity
Icephobicity
Interface
Mechanical interlocking
Porosity
Wenzel
X-ray Computed Tomography (XCT)
Journal
Journal of colloid and interface science
ISSN: 1095-7103
Titre abrégé: J Colloid Interface Sci
Pays: United States
ID NLM: 0043125
Informations de publication
Date de publication:
May 2023
May 2023
Historique:
received:
27
12
2022
revised:
19
01
2023
accepted:
20
01
2023
pubmed:
2
2
2023
medline:
2
2
2023
entrez:
1
2
2023
Statut:
ppublish
Résumé
Characterizing the microstructure of an ice/surface interface and its effect on the icephobic behavior of surfaces remains a significant challenge. Introducing X-ray Computed Tomography (XCT) can provide unprecedented insights into the internal (porosity) and interfacial structures, i.e. wetting regime, between (super)hydrophobic surfaces and ice by visualizing these optically inaccessible regions. Frozen droplets with controlled volume were deposited on top of metallic and polymeric substrates with different levels of wettability. Different modes of XCT (3D and 4D) were utilized to obtain information on the internal and interfacial structure of the ice/surface system. The results were supplemented by conventional surface analysis techniques, including optical profilometry and contact angle measurements. Using XCT on ice/surface systems, the 3D and 4D (imaging with temporal resolution) structural information can be visualized. From these datasets, qualitative and quantitative results were obtained, not only for characterizing the interface but also for analyzing the entire droplet/surface system, e.g., measurement of porosity size, shape, and location. These results highlight the potential of XCT in the characterization of both droplets and substrates and proves that the technique can aid to develop hydrophobic surfaces for use as icephobic materials.
Identifiants
pubmed: 36724664
pii: S0021-9797(23)00125-X
doi: 10.1016/j.jcis.2023.01.103
pii:
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
500-512Informations de copyright
Copyright © 2023 Elsevier Inc. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of Competing Interest TM is working solely with FT Technologies (UK) Ltd as Senior Materials Specialist while collaborating on this research project by providing engineering substrates, sharing his thoughts on the experiments and helping in analyzing the results. He has no employment, financial or personal conflict of interest with other organizations. The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.