Surface charge and the contact of elastic solids
- 11 June 1973
- journal article
- Published by IOP Publishing in Journal of Physics D: Applied Physics
- Vol. 6 (9) , 1017-1024
- https://doi.org/10.1088/0022-3727/6/9/304
Abstract
Contact between a metal sphere and plane specimens of a synthetic polymer has been investigated experimentally. The area of contact has been determined, for a range of contact loads, by measurement of the surface charge retained by the polymer after contact. It is shown that the area of contact is described by the Hertz equation. The experimental data indicate that the previously reported departure from the Hertz equation under small contact loads, which has been attributed to changes in the surface energy of the materials, may be accounted for by the contact charge. It is concluded that surface charges contribute significantly to the adhesion of dissimilar materials.Keywords
This publication has 8 references indexed in Scilit:
- Investigation on the Adhesion of Polymer Particles to the Surface of a SemiconductorThe Journal of Adhesion, 1972
- Surface energy and the contact of elastic solidsProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1971
- The adhesion and surface energy of elastic solidsJournal of Physics D: Applied Physics, 1971
- Charge generation on dielectric surfacesJournal of Physics D: Applied Physics, 1969
- The direct measurement of normal and retarded van der Waals forcesProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1969
- Electronic Theory of AdhesionJournal of Applied Physics, 1967
- The static electrification of nylon 66British Journal of Applied Physics, 1967
- The examination of the electrical properties of insulators by surface charge measurementJournal of Scientific Instruments, 1967