Published in Journal of colloid and interface science
We studied experimentally the breakup of liquid bridges made of aqueous solutions of Poly(acrylic acid) between two separating solid surfaces with freely moving contact lines. For polymer concentrations higher than a certain threshold (~30 ppm), the contact line on the surface with the highest receding contact angle fully retracts before the liquid...
This paper presents a set of triaxial compression tests on partially saturated dense sands to clarify the microscopic characteristics and their link to the macroscopic responses. Constant suction tests (CS tests) and constant water content tests (CW tests) are conducted under low confining pressure to observe microscopic and macroscopic behaviors o...
Published in Tribology Letters
AbstractThermocapillary migration describes an interfacial phenomenon that liquids can spontaneously move from the warm to the cold regions on nonuniformly heated solids. However, it is unknown how liquids react at various interfaces subjected to a thermal gradient. In this study, migration of liquid lubricants at the free surface, the plate/plate ...
Published in Data in Brief
Data on particle removal from surfaces is yet to be presented properly. This data is explored and the mathematical models are presented in the previous paper “New model for particle removal from surface in presence of deformed liquid bridge” [ 1 ], which predict the fluid velocity required to initiate the motion of a particle. However, the models s...
We propose a new 3D-printed capillary gripper equipped with a textured surface for motion-free release. The gripper classically picks up micro-objects thanks to the capillary forces induced by a liquid bridge. Micro-objects are released by decreasing the volume of this bridge through evaporation. The latter can be either natural or speeded up by a ...
Published in Journal of colloid and interface science
Despite the importance of removing particles from surfaces, particularly in the presence of liquid bridge, the process is yet to be investigated properly. In this research, this important process is explored and a mathematical model is presented that predicts the fluid velocity required to initiate the motion of a particle embraced by a liquid brid...
Published in Micromachines
Published in International Journal of Precision Engineering and Manufacturing
Stereolithography (SL) is an additive manufacturing (AM) process that uses photopolymers for creating a 3D structure that has excellent surface roughness and allows precision fabrication. Nevertheless, the photopolymer used in this process is generally costly, in particular for medical-grade materials, and a relatively large amount of a photopolyme...
Published in Microgravity Science and Technology
This paper reports an overview and some important results of microgravity experiments called Dynamic Surf, which have been conducted on board the International Space Station from 2013 to 2016. The present project mainly focuses on the relations between the Marangoni instability in a high-Prandtl-number (Pr= 67 and 112) liquid bridge and the dynamic...
Published in Journal of colloid and interface science
Previous theoretical studies have indicated that liquid bridges close to the Plateau-Rayleigh instability limit can be stabilized when the upper supporting disk vibrates at a very high frequency and with a very small amplitude. The major effect of the vibration-induced pressure field is to straighten the liquid bridge free surface to compensate for...
