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Title: Characteristics of a freezing nanosuspension drop in two different schemes
Authors: Miao, Yanming
Zhao, Yugang
Gao, Ming
Yang, Liang
Yang, Chun
Keywords: Engineering::Mechanical engineering
Issue Date: 2022
Source: Miao, Y., Zhao, Y., Gao, M., Yang, L. & Yang, C. (2022). Characteristics of a freezing nanosuspension drop in two different schemes. Applied Physics Letters, 120(9), 091602-.
Journal: Applied Physics Letters
Abstract: Understanding the freezing mechanism of a complex fluid drop is of interest from both fundamental study and application viewpoints. Whereas a water drop is frozen into a peach-like crystal due to the volume expansion upon freezing, the shape of a frozen complex fluid drop is still mysterious. In this work, we investigate the freezing dynamics of a nanosuspension drop in two different schemes, i.e., sessile and deposited. We find that the top of a frozen nanosuspension drop can either be a singular tip or flat plateau depending on the thermal condition onset of icing nucleation. Illustrated using a Hele-Shaw cell experiment, we attribute such intriguing freezing behaviors to the interplay between nanoparticles and two types of ice, i.e., dendritic ice formed in the recalescence stage and planar ice formed in the isothermal stage. Specifically, microcells constructed by dendritic ice lead to the failure of global freezing segregation, which yields the formation of the flat plateau. The fundamental understanding and the ability to control the shape of a frozen complex fluid drop have numerous promising applications in additive manufacturing, microelectronic systems, and others.
ISSN: 0003-6951
DOI: 10.1063/5.0084094
Schools: School of Mechanical and Aerospace Engineering 
Rights: © 2022 Author(s). All rights reserved. This paper was published by AIP Publishing in Applied Physics Letters and is made available with permission of Author(s).
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MAE Journal Articles

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