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231226s2022 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.2c01535
|2 doi
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|a eng
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|a Kumar, Virkeshwar
|e verfasserin
|4 aut
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|a Patterns during Evaporative Crystallization of a Saline Droplet
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|c 2022
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|a Text
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Revised 23.08.2022
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a In the present work, we investigate the influence of substrate wettability and crystal morphology on the evaporative crystallization of saline droplets. On a superhydrophilic substrate, the evaporative crystals formed during the drying of a saline droplet of aqueous potassium nitrate are observed to be long and needle-shaped, oriented along the substrate. The crystal deposits form a flower-shaped pattern when the initial contact angle of the droplet increases to ∼72°. The orientation of the crystals along the triple contact line of the droplet controls the self-amplifying creeping growth of the salt crystals that eventually determines the overall evaporative patterns. The crystals change from being needle-shaped to globular salt deposits as the volume of liquid available for crystallization reduces. We demonstrate that the arrangement of the crystal with respect to the substrate and the droplet-air interface governs the rate of evaporation, growth, and morphology of the crystals
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|a Journal Article
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|a Dash, Susmita
|e verfasserin
|4 aut
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 38(2022), 33 vom: 23. Aug., Seite 10265-10273
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|x 1520-5827
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|g volume:38
|g year:2022
|g number:33
|g day:23
|g month:08
|g pages:10265-10273
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|u http://dx.doi.org/10.1021/acs.langmuir.2c01535
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