molecular adhesion

molecular adhesion

[mə′lek·yə·lər ad′hē·zhən]
(physical chemistry)
A particular manifestation of intermolecular forces which causes solids or liquids to adhere to each other; usually used with reference to adhesion of two different materials, in contrast to cohesion.
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References in periodicals archive ?
Thermal Molecular Adhesion Turbine, or TMAT, is a small but powerful turbine which converts low pressure saturated steam into electricity by using thermal power from steam.
The applied forces exerted on abrasive particle include the external force [F.sub.Z] conveyed by pad asperities, antiforce [F.sub.h] by wafer surface, the molecular adhesion force [F.sub.a] between particle and wafer surface, and abrasive particle gravity.
Molecular Adhesion Force between Particle and Wafer Fa.
An expression of the molecular adhesion force [F.sub.a] between a particle and a plane is given by Bowling [13] as
To further study the relationship between the external forces on a single particle [F.sub.Z] by pad and the molecular adhesion force between particle and wafer [F.sub.a], an example is used by theoretical calculation to compare [F.sub.Z] and [F.sub.a] that assumes an [Al.sub.2][O.sub.3] abrasive is pressed into the surface of Cu wafer.
Using (8), (13) to calculate the external forces on a single particle [F.sub.Z] by pad and the molecular adhesion force between particle and wafer [F.sub.a], the results are shown in Figure 5.
As shown in Figure 5, the critical value when the external force [F.sub.Z] is equal to the molecular adhesion force [F.sub.a] is 33 nm.
Particle Indentation Depth considering the Molecular Adhesion Force
If the [[PI].sub.l], [[PI].sub.2] items are ignored in (17), the particle indentation depth without considering the molecular adhesion force between particle and wafer surface can be expressed as
"The second stage of this device consists of a container of liquid (non flammable) that changes its state from liquid to a gas by molecular adhesion.
Investigations concentrate on gaining a better understanding in the areas of protein and protein-surface-interaction, while taking into account the resulting molecular adhesion mechanisms.
The technology may eventually lead to highly sensitive methods for studying molecular adhesion, Lee notes, whether the adherence of barnacles to ship surfaces or the interaction between an antibody and its antigen.

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