We provide a comprehensive physical description of the vaporization, self-assembly, agglomeration, and buckling kinetics of sessile nanofluid droplets pinned on a hydrophobic substrate. We have deciphered five distinct regimes of the droplet life cycle. Regimes I-III consists of evaporation-induced preferential agglomeration that leads to the formation of a unique dome-shaped inhomogeneous shell with a stratified varying-density liquid core. Regime IV involves capillary-pressure-initiated shell buckling and stress-induced shell rupture. Regime V marks rupture-induced cavity inception and growth. We demonstrate through scaling arguments that the growth of the cavity (which controls the final morphology or structure) can be described by a universal function.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1103/PhysRevE.92.042304 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Supra-particle formation by evaporation of aerosol droplets containing binary mixtures of colloidal particles: Controlling the final morphology.
J Colloid Interface Sci
November 2024
School of Chemistry, University of Bristol, Bristol BS8 1TS, UK. Electronic address:
Hypothesis: Supra-particle formation by evaporation of an aqueous aerosol droplet containing nano-colloidal particles is challenging to investigate but has significant applications. We hypothesise that the Peclet number, Pe, which compares the effectiveness of evaporation-induced advection to that of colloidal diffusion, is critical in determining supra-particle morphology and can be used to predict the dried morphology for droplet containing polydisperse nanoparticles.
Experiments: Sterically-stabilized diblock copolymer nanoparticles were prepared via polymerization-induced self-assembly (PISA).
Influence of stacking sequences of woven jute-carbon hybrid composites: Diffusion mechanism and mechanical characterization.
Heliyon
September 2024
Former Faculty, Department of Mechanical Engineering, Khulna University of Engineering & Technology, Khulna, 9203, Bangladesh.
In this study, different stacking orders of carbon-jute fiber mats were used to fabricate the composites and hybrids. The impact of different stacking orientations on mechanical properties was investigated experimentally. The experimental results were verified by finite element analysis ().
View Article and Find Full Text PDFFlat, wrinkled, or ridged: Relaxation of an elastic film on a viscous substrate undergoing continuous compression.
Int J Solids Struct
July 2023
Department of Mechanical Engineering and Material Science, University of Pittsburgh, Pittsburgh PA 15238, United States.
We conduct a finite element computational study of the dynamics of a thin elastic film bonded to a much thicker viscous substrate undergoing compression at a fixed rate. The applied compression tends to continuously increase the strain, and hence the elastic energy, of the film. In contrast to the well-studied case of a soft elastic substrate, a viscous substrate cannot store elastic energy; instead it regulates the kinetics of the various mechanisms that dissipate elastic energy of the film.
View Article and Find Full Text PDFControlling Interfacial Hydrogen Bonding at a Gold Surface: The Effect of Organic Cosolvents.
J Phys Chem Lett
April 2024
Department of Chemistry, University of Texas at Austin, 105 E 24th St. A5300, Austin, Texas 78712, United States.
Water often serves as both a reactant and solvent in electrocatalytic reactions. Interfacial water networks can affect the transport and kinetics of these reactions, e.g.
View Article and Find Full Text PDFBuckling kinetics of graphene membranes under uniaxial compression.
Phys Rev E
February 2024
School of Chemical Engineering, National Technical University of Athens, 9 Heroon Polytechniou Street, Zografou Campus, GR-15780 Athens, Greece.
Despite past investigations of the buckling instability, the kinetics of the buckling process is not well understood. We develop a generic framework for determining the buckling kinetics of membranes under compressive stress (σ_{b}) via molecular dynamics simulations. The buckling time (t_{b}) is modeled by an extended Boltzmann-Arrhenius-Zhurkov equation accounting for temperature (T) and scale-dependent bending rigidity.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!