Study on the Influence of Capillary Force and Thermal Capillary Force on Surface Bulge Morphology by Laser Micro-Melting

In this study, synthesized Wurtzite-structured ZnS nanobelts was investigated using high resolution transmission electron microscope, atomic force microscope, and scanning electron microscope for structural and morphology analyses. Results show that ZnS nanobelts are tens of microns in length, mostly ∼40×50 nm2 in width and thickness. The nanobelts grow along direction [001] and are dislocation free. The distance spacing for (001) plane is 3.19A˚. The capillary force was found strong enough to deform the ZnS nanobeam down to the substrate. Theoretical analysis on small strain elastic deformation was conducted. It was found that as the maximum beam deflection increases, beam elastic energy increases; in the meantime, the surface energy decreases. The net increase in elastic beam energy is less than the net decrease in the surface energy, resulting in total energy decrease. In addition, as the volume of liquid increases, for a certain maximum beam deflection, the total energy increases, this is result of the increase of the surface energy. Furthermore, for a specific nanobeam to be deflected to the underlying surface, the amount of liquid can be calculated.

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Large membrane deflection via capillary force actuation

Journal of Micromechanics and Microengineering ◽

10.1088/1361-6439/aab372 ◽

2018 ◽

Vol 28 (6) ◽

pp. 065008 ◽

Cited By ~ 1

Author(s):

Christina A Barth ◽

Xiaoyu Hu ◽

Marcel A Mibus ◽

Michael L Reed ◽

Carl R Knospe

Keyword(s):

Capillary Force ◽

Membrane Deflection

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Novel concept of washing for microfluidic paper-based analytical devices based on capillary force of paper substrates

Analytical and Bioanalytical Chemistry ◽

10.1007/s00216-016-9853-9 ◽

2016 ◽

Vol 408 (27) ◽

pp. 7559-7563 ◽

Cited By ~ 6

Author(s):

Saeed Mohammadi ◽

Lori Shayne Alamo Busa ◽

Masatoshi Maeki ◽

Reza M. Mohamadi ◽

Akihiko Ishida ◽

...

Keyword(s):

Capillary Force ◽

Novel Concept ◽

Paper Substrates

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Electrostatic Forces on Particles Floating Within the Interface Between Two Immiscible Fluids

Volume 8: Heat Transfer, Fluid Flows, and Thermal Systems, Parts A and B ◽

10.1115/imece2007-44095 ◽

2007 ◽

Author(s):

Nadine Aubry ◽

Pushpendra Singh

Keyword(s):

Dielectric Properties ◽

Field Strength ◽

Electric Field ◽

Electric Field Strength ◽

External Electric Field ◽

Capillary Force ◽

Electrostatic Force ◽

Immiscible Fluids ◽

Electrostatic Forces ◽

Dipole Interactions

The objective of this paper is to study the dependence of the electrostatic force that act on a particle within the interface between two immiscible fluids on the parameters such as the dielectric properties of the fluids and particles, the particle’s position within the interface, and the electric field strength. It is shown that the component of electrostatic force normal to the interface varies as a2, where a is the particle radius, and since in equilibrium it is balanced by the vertical capillary force, the interfacial deformation caused by the particle changes when an external electric field is applied. In addition, there are lateral electrostatic forces among the particles due to the dipole-dipole interactions which, when the distance between two particles is O(a), vary as a2, and remain significant for submicron sized particles.

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Strength and Consolidation Mechanism of Green Pellets Containing Carbon

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.402.215 ◽

2011 ◽

Vol 402 ◽

pp. 215-220 ◽

Cited By ~ 1

Author(s):

Ru Fei Wei ◽

Jia Xin Li ◽

Guang Wu Tang

Keyword(s):

Compressive Strength ◽

Capillary Force ◽

Phenolic Resin ◽

Viscous Force ◽

Chemical Adsorption ◽

Adsorption Effect ◽

Green Pellet ◽

Pellet Strength ◽

Better Than

The effects of four inorganic binders and four organic binders on strength of green pellet containing carbon were studied. The results show that phenolic resin is the best binder, compressive strength and drop strength of preheated pellet are 312.5 N and 15.1 times, respectively, when the matching was 2%. The reason is that chemical adsorption effect occurs in pellet. Strength of wet pellet is mainly maintained by capillary force. However, preheated pellet is mainly maintained by chemical adsorption effect and viscous force. Chemical adsorption effect is better than viscous force.

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