Details

Autor(en) / Beteiligte

• Persson, B. N. J.

Titel

The dependency of adhesion and friction on electrostatic attraction

Ist Teil von

• The Journal of chemical physics, 2018-04, Vol.148 (14), p.144701-144701

Ort / Verlag

United States

Erscheinungsjahr

2018

Link zum Volltext

Quelle

AIP Journals (American Institute of Physics)

Beschreibungen/Notizen

• I develop a general mean-field theory for the influence of electrostatic attraction between two solids on the contact mechanics. I assume elastic solids with random surface roughness. I consider two cases, namely, with and without an electrically insulating layer between the conducting solids. The former case is important for, e.g., the finger–touch screen interaction. I study how the electrostatic attraction influences the adhesion and friction. For the case of an insulating layer, I find that when the applied nominal contact pressure is relatively small, as the applied voltage increases, there is a sharp increase in the contact area, and hence in the friction, at a critical voltage.