Solidification of liquid metal drops during impact

Marise V. Gielen; Rielle de Ruiter; Robin B.J. Koldeweij; Detlef Lohse; Jacco H. Snoeijer; Hanneke Gelderblom

doi:10.1017/jfm.2019.886

Solidification of liquid metal drops during impact

Marise V. Gielen, Rielle de Ruiter, Robin B.J. Koldeweij, Detlef Lohse, Jacco H. Snoeijer, Hanneke Gelderblom^*

^*Corresponding author for this work

Physics of Fluids

Research output: Contribution to journal › Article › Academic › peer-review

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Abstract

Hot liquid metal drops impacting onto a cold substrate solidify during their subsequent spreading. Here we experimentally study the influence of solidification on the outcome of an impact event. Liquid tin drops are impacted onto sapphire substrates of varying temperature. The impact is visualised both from the side and from below, which provides a unique view on the solidification process. During spreading, an intriguing pattern of radial ligaments rapidly solidifies from the centre of the drop. This pattern determines the late-time morphology of the splat. A quantitative analysis of the drop spreading and ligament formation is supported by scaling arguments. Finally, a phase diagram for drop bouncing, deposition and splashing as a function of substrate temperature and impact velocity is provided.

Original language	English
Article number	A32
Journal	Journal of fluid mechanics
Volume	883
Issue number	1
DOIs	https://doi.org/10.1017/jfm.2019.886
Publication status	Published - 25 Jan 2020

Keywords

UT-Hybrid-D
Solidification/melting

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10.1017/jfm.2019.886Licence: CC BY

ArticleFinal published version, 590 KBLicence: CC BY

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title = "Solidification of liquid metal drops during impact",

abstract = "Hot liquid metal drops impacting onto a cold substrate solidify during their subsequent spreading. Here we experimentally study the influence of solidification on the outcome of an impact event. Liquid tin drops are impacted onto sapphire substrates of varying temperature. The impact is visualised both from the side and from below, which provides a unique view on the solidification process. During spreading, an intriguing pattern of radial ligaments rapidly solidifies from the centre of the drop. This pattern determines the late-time morphology of the splat. A quantitative analysis of the drop spreading and ligament formation is supported by scaling arguments. Finally, a phase diagram for drop bouncing, deposition and splashing as a function of substrate temperature and impact velocity is provided.",

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AU - Lohse, Detlef

AU - Snoeijer, Jacco H.

AU - Gelderblom, Hanneke

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N2 - Hot liquid metal drops impacting onto a cold substrate solidify during their subsequent spreading. Here we experimentally study the influence of solidification on the outcome of an impact event. Liquid tin drops are impacted onto sapphire substrates of varying temperature. The impact is visualised both from the side and from below, which provides a unique view on the solidification process. During spreading, an intriguing pattern of radial ligaments rapidly solidifies from the centre of the drop. This pattern determines the late-time morphology of the splat. A quantitative analysis of the drop spreading and ligament formation is supported by scaling arguments. Finally, a phase diagram for drop bouncing, deposition and splashing as a function of substrate temperature and impact velocity is provided.

AB - Hot liquid metal drops impacting onto a cold substrate solidify during their subsequent spreading. Here we experimentally study the influence of solidification on the outcome of an impact event. Liquid tin drops are impacted onto sapphire substrates of varying temperature. The impact is visualised both from the side and from below, which provides a unique view on the solidification process. During spreading, an intriguing pattern of radial ligaments rapidly solidifies from the centre of the drop. This pattern determines the late-time morphology of the splat. A quantitative analysis of the drop spreading and ligament formation is supported by scaling arguments. Finally, a phase diagram for drop bouncing, deposition and splashing as a function of substrate temperature and impact velocity is provided.

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JO - Journal of fluid mechanics

JF - Journal of fluid mechanics

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Solidification of liquid metal drops during impact

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Keywords

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