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Title: Deposition of Colloidal Particles during the Evaporation of Sessile Drops: Dilute Colloidal Dispersions

Abstract

The deposition of colloidal silica particles during the evaporation of sessile drops on a smooth substrate has been modeled by the simultaneous solution of the Navier–Stokes equations, the convective-diffusive equation for particles, and the diffusion equation for evaporated vapor in the gas phase. Isothermal conditions were assumed. A mapping was created to show the conditions for various deposition patterns for very dilute suspensions. Based on values of the Peclet (Pe) number and Damkholer numbers (Da and Da −1 ), the effects of adsorption and desorption were discussed according to the map. Simulations were also done for suspensions with a high particle concentration to form a solid phase during the evaporation by using a packing criterion. The simulations predicted the height and width of the ring deposit near the contact line, and the results compared favorably to experimental particle deposition patterns.

Authors:
 [1]; ORCiD logo [1]; ORCiD logo [1]
  1. Davidson School of Chemical Engineering, Purdue University, West Lafayette, Indiana, USA
Publication Date:
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1569104
Grant/Contract Number:  
DEFG02-02-ER45975; DEFG02-02-ER45976
Resource Type:
Published Article
Journal Name:
International Journal of Chemical Engineering
Additional Journal Information:
Journal Name: International Journal of Chemical Engineering Journal Volume: 2019; Journal ID: ISSN 1687-806X
Publisher:
Hindawi Publishing Corporation
Country of Publication:
Egypt
Language:
English

Citation Formats

Sung, Pei-Fang, Wang, Lihui, and Harris, Michael T. Deposition of Colloidal Particles during the Evaporation of Sessile Drops: Dilute Colloidal Dispersions. Egypt: N. p., 2019. Web. doi:10.1155/2019/7954965.
Sung, Pei-Fang, Wang, Lihui, & Harris, Michael T. Deposition of Colloidal Particles during the Evaporation of Sessile Drops: Dilute Colloidal Dispersions. Egypt. doi:10.1155/2019/7954965.
Sung, Pei-Fang, Wang, Lihui, and Harris, Michael T. Thu . "Deposition of Colloidal Particles during the Evaporation of Sessile Drops: Dilute Colloidal Dispersions". Egypt. doi:10.1155/2019/7954965.
@article{osti_1569104,
title = {Deposition of Colloidal Particles during the Evaporation of Sessile Drops: Dilute Colloidal Dispersions},
author = {Sung, Pei-Fang and Wang, Lihui and Harris, Michael T.},
abstractNote = {The deposition of colloidal silica particles during the evaporation of sessile drops on a smooth substrate has been modeled by the simultaneous solution of the Navier–Stokes equations, the convective-diffusive equation for particles, and the diffusion equation for evaporated vapor in the gas phase. Isothermal conditions were assumed. A mapping was created to show the conditions for various deposition patterns for very dilute suspensions. Based on values of the Peclet (Pe) number and Damkholer numbers (Da and Da −1 ), the effects of adsorption and desorption were discussed according to the map. Simulations were also done for suspensions with a high particle concentration to form a solid phase during the evaporation by using a packing criterion. The simulations predicted the height and width of the ring deposit near the contact line, and the results compared favorably to experimental particle deposition patterns.},
doi = {10.1155/2019/7954965},
journal = {International Journal of Chemical Engineering},
number = ,
volume = 2019,
place = {Egypt},
year = {2019},
month = {10}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1155/2019/7954965

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Works referenced in this record:

Capillary flow as the cause of ring stains from dried liquid drops
journal, October 1997

  • Deegan, Robert D.; Bakajin, Olgica; Dupont, Todd F.
  • Nature, Vol. 389, Issue 6653, p. 827-829
  • DOI: 10.1038/39827