capillary action


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capillary action

The spontaneous movement of a liquid up thin tubes, due to adhesive and cohesive forces and surface tension.

capillary action

A surface tension effect shown by the elevation or depression of a liquid at the region of contact with a solid, as in capillary tubes.
Synonym: capillarity
See also: action
References in periodicals archive ?
The study revealed that these methods were ineffective due to the continual capillary action through the pores of the block wall from the foundation [30].
It is necessary to acknowledge that the actual height of the capillary action is less than the height set by calculation, as also the evaporation of moisture from the material is currently underway (Balik 2008).
Micro- capillary usually comes with graduation marks for every microlitre that assist the observation of capillary action up to a certain volume.
"Then we started playing around with glass-filled fibers to see if it helped with capillary action; it did, but there was a tradeoff in terms of tensile strength.
The thermoplastic core needed to be compatible with the epoxy primer resin, flow via capillary action, form a film resistant to corrosive materials, dry in a reasonable time period and be stable after encapsulation.
What name is given to a liquid surface curved at the edges by capillary action? 5.
Capillary action and surface tension of liquids, amphiphilic surfactants, and monolayer lipid films are discussed, followed by parameters of adsorption and desorption at solid surfaces and wetting/cleaning processes.
In the wave soldering process, the molten solder fills the tiny PCB hole (consists of PTH) due to the capillary action. The phenomenon of the molten solder filling process was focused on.
The threads conduct water through capillary action. and the water-repellent properties of the surrounding fabric also help drive water down the channels.
The flux could have also penetrated up through the connector by capillary action between the pin and connector body.
In that situation, groundwater that migrates into the subgrade under capillary action not only causes long-term strength attenuation of subgrade soil but also produces large plastic deformation in early stage of subgrade.
With a dry internal environment and an external environment that remains wet, capillary action increases the risk of sulphate attack.