Keywords
Electrostatics, Triboelectric, Insulators, Pressure, Langmuir Isotherm
Abstract
Metal - metal and to an extent metal - insulator contact or triboelectric charging are well known phenomena with good theoretical understanding of the charge exchange mechanism. However, insulator insulator charging is not as well understood. Theoretical and experimental research has been performed that shows that the surface charge on an insulator after triboelectric charging with another insulator is rapidly dissipated with lowered atmospheric pressure. This pressure discharge is consistent with surface ions being evaporated off the surface once their vapor pressure falls below the saturation vapor pressure. A two-phase equilibrium model based on an ideal gas of singly charged ions in equilibrium with a submonolayer adsorbed film was developed to describe the pressure dependence of the surface charge on an insulator. The resulting charge density equation is an electrostatic version of the Langmuir isotherm for adsorbed surface particles, which describes well the experimental observations.
Notes
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Graduation Date
2005
Semester
Fall
Advisor
Mucciolo, Eduardo
Degree
Doctor of Philosophy (Ph.D.)
College
College of Arts and Sciences
Department
Physics
Degree Program
Physics
Format
application/pdf
Identifier
CFE0000755
URL
http://purl.fcla.edu/fcla/etd/CFE0000755
Language
English
Release Date
January 2006
Length of Campus-only Access
None
Access Status
Doctoral Dissertation (Open Access)
STARS Citation
Hogue, Michael, "Insulator-insulator Contact Charging As A Function Of Pressure" (2005). Electronic Theses and Dissertations. 568.
https://stars.library.ucf.edu/etd/568