Marangoni effect ≈ Marangoni effect
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Maxwell Meets Marangoni—A Review of Theories on Laser‐Induced Periodic Surface Structures Open
Surface nanostructuring enables the manipulation of many essential surface properties. With the recent rapid advancements in laser technology, a contactless large‐area processing at rates of up to m 2 s −1 becomes feasible that allows new …
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Controlled Uniform Coating from the Interplay of Marangoni Flows and Surface-Adsorbed Macromolecules Open
Surface coatings and patterning technologies are essential for various physicochemical applications. In this Letter, we describe key parameters to achieve uniform particle coatings from binary solutions. First, multiple sequential Marangon…
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From ripples to spikes: A hydrodynamical mechanism to interpret femtosecond laser-induced self-assembled structures Open
Materials irradiated with multiple femtosecond laser pulses in sub-ablation\nconditions are observed to develop various types of self-assembled morphologies\nthat range from nano-ripples to periodic micro-grooves and quasi-periodic\nmicro-…
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Mechanism of keyhole pore formation in metal additive manufacturing Open
During metal additive manufacturing, the porosity of the as-built part deteriorates the mechanical property and even hinders the further application of metal additive manufacturing. Particularly, the mechanisms of keyhole pores associated …
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Impact of Binary Chemical Reaction and Activation Energy on Heat and Mass Transfer of Marangoni Driven Boundary Layer Flow of a Non-Newtonian Nanofluid Open
The flow and heat transfer of non-Newtonian nanofluids has an extensive range of applications in oceanography, the cooling of metallic plates, melt-spinning, the movement of biological fluids, heat exchangers technology, coating and suspen…
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Bubble-Pen Lithography Open
Current lithography techniques, which employ photon, electron, or ion beams to induce chemical or physical reactions for micro/nano-fabrication, have remained challenging in patterning chemically synthesized colloidal particles, which are …
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Solutal Marangoni effect determines bubble dynamics during electrocatalytic hydrogen evolution Open
Understanding and manipulating gas bubble evolution during electrochemical water splitting is a crucial strategy for optimizing the electrode/electrolyte/gas bubble interface. Here gas bubble dynamics are investigated during the hydrogen e…
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Effects of sulfur concentration and Marangoni convection on melt-pool formation in transition mode of selective laser melting process Open
A three-dimensional thermal-fluid model is constructed to investigate the effects of Marangoni convection on the melt-pool formation during the Selective Laser Melting of SS316 powder. The model takes account of the heat-and-mass transfer …
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Thermocapillarity in Microfluidics—A Review Open
This paper reviews the past and recent studies on thermocapillarity in relation to microfluidics. The role of thermocapillarity as the change of surface tension due to temperature gradient in developing Marangoni flow in liquid films and c…
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Solar passive distiller with high productivity and Marangoni effect-driven salt rejection Open
The Marangoni effect (associated to salt concentration gradient) is found having an important role to enhance the salt rejection process in passive desalination technologies.
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Progress Report on Phase Separation in Polymer Solutions Open
Polymeric porous media (PPM) are widely used as advanced materials, such as sound dampening foams, lithium‐ion batteries, stretchable sensors, and biofilters. The functionality, reliability, and durability of these materials have a strong …
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Dimensionless numbers in additive manufacturing Open
The effects of many process variables and alloy properties on the structure and properties of additively manufactured parts are examined using four dimensionless numbers. The structure and properties of components made from 316 Stainless s…
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Light‐Driven Transport of a Liquid Marble with and against Surface Flows Open
Liquid marbles, that is, liquid drops coated by a hydrophobic powder, do not wet any solid or liquid substrate, making their transport and manipulation both highly desirable and challenging. Herein, we describe the light‐driven transport o…
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Marangoni flow at droplet interfaces: Three-dimensional solution and applications Open
The Marangoni effect refers to fluid flow induced by a gradient in surface tension at a fluid-fluid interface. We determine the full three-dimensional Marangoni flow generated by a non-uniform surface tension profile at the interface of a …
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Altering the coffee-ring effect by adding a surfactant-like viscous polymer solution Open
A uniform deposition of the suspended particles in an evaporating droplet is necessary in many research fields. Such deposition is difficult to achieve, because the coffee-ring effect dominates the internal flow in a droplet. The present s…
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A general ink formulation of 2D crystals for wafer-scale inkjet printing Open
A binary solvent ink exploiting solutal Marangoni flows to suppress the coffee-ring effect for uniform printing of 2D crystals.
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Self-Propulsion of Liquid Marbles: Leidenfrost-like Levitation Driven by Marangoni Flow Open
Self-propulsion of liquid marbles filled with aqueous alcohol solutions and placed on a water surface is reported. The characteristic velocity of the marbles is ca. 0.1 m/s. The phenomenon of self-propulsion is related to the Marangoni sol…
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Pinning–Depinning Mechanism of the Contact Line during Evaporation on Chemically Patterned Surfaces: A Lattice Boltzmann Study Open
In this paper, the pinning and depinning mechanism of the contact line during droplet evaporation on chemically stripe-patterned surfaces is numerically investigated using a thermal multiphase lattice Boltzmann (LB) model with liquid-vapor…
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Investigation of metal mixing in laser keyhole welding of dissimilar metals Open
Laser keyhole welding of dissimilar metals has broad applications in various industrial fields. However, dissimilar metal mixing in the molten pool often causes the formation of detrimental intermetallic compounds that can undermine the pe…
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Curling Liquid Crystal Microswimmers: A Cascade of Spontaneous Symmetry Breaking Open
We report curling self-propulsion in aqueous emulsions of common mesogenic compounds. Nematic liquid crystal droplets self-propel in a surfactant solution with concentrations above the critical micelle concentration while undergoing micell…
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Marangoni Contraction of Evaporating Sessile Droplets of Binary Mixtures Open
The Marangoni contraction of sessile drops of a binary mixture of a volatile and a nonvolatile liquid has been investigated experimentally and theoretically. The origin of the contraction is the locally inhomogeneous evaporation rate of se…
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Influence of the Particle Concentration and Marangoni Flow on the Formation of Cellulose Nanocrystal Films Open
Cellulose nanocrystals (CNCs), ribbonlike crystalline nanoparticles, are a biobased material that can be a great alternative to obtaining films with tunable optical properties. Iridescent and light-diffracting films can be readily obtained…
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Performance Enhancement of Electrocatalytic Hydrogen Evolution through Coalescence-Induced Bubble Dynamics Open
The evolution of electrogenerated gas bubbles during water electrolysis can significantly hamper the overall process efficiency. Promoting the departure of electrochemically generated bubbles during (water) electrolysis is therefore benefi…
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Laser-matter interactions in additive manufacturing of stainless steel SS316L and 13-93 bioactive glass revealed by in situ X-ray imaging Open
Laser-matter interactions in laser additive manufacturing (LAM) occur on short time scales (10−6–10−3s) and have traditionally proven difficult to characterise. We investigate these interactions during LAM of stainless steel SS316L and 13-…
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A hybrid lattice Boltzmann and finite difference method for droplet dynamics with insoluble surfactants Open
Droplet dynamics in microfluidic applications is significantly influenced by surfactants. It remains a research challenge to model and simulate droplet behaviour including deformation, breakup and coalescence, especially in the confined mi…
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Evaporation-Triggered Segregation of Sessile Binary Droplets Open
Droplet evaporation of multicomponent droplets is essential for various physiochemical applications, e.g., in inkjet printing, spray cooling, and microfabrication. In this work, we observe and study the phase segregation of an evaporating …
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Solutal Marangoni flow as the cause of ring stains from drying salty colloidal drops Open
Evaporating salty droplets are ubiquitous in nature, in our home and in the laboratory. Interestingly, the transport processes in such apparently simple systems differ strongly from evaporating "freshwater" droplets since convection is par…
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Traces of surfactants can severely limit the drag reduction of superhydrophobic surfaces Open
Significance Whereas superhydrophobic surfaces (SHSs) have long promised large drag reductions, experiments have provided inconsistent results, with many textures yielding little or no benefit. Given the vast potential impact of SHSs on en…
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Numerically analysis of Marangoni convective flow of hybrid nanofluid over an infinite disk with thermophoresis particle deposition Open
This study discusses the flow of hybrid nanofluid over an infinite disk in a Darcy–Forchheimer permeable medium with variable thermal conductivity and viscosity. The objective of the current theoretical investigation is to identify the the…
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Microscale Marangoni Surfers Open
We apply laser light to induce the asymmetric heating of Janus colloids adsorbed at water-oil interfaces and realize active micrometric "Marangoni surfers." The coupling of temperature and surfactant concentration gradients generates Maran…