Results 271 to 280 of about 2,130,934 (299)
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Theory of contact electrification
British Journal of Applied Physics, 1953After an outline of the relevant parts of the modern theory of solids, the transfer of electrons when metals, semiconductors and insulators are placed in contact is discussed. The importance of surface states is stressed.
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Gas breakdown in contact electrification
Journal of Physics D: Applied Physics, 1992Electrification of various materials (silicon, epoxy resin and coal) by repeated contact with a metal plate has been investigated. The authors observed gas breakdown in a nitrogen atmosphere upon separation of the contact partners. The total amount of charge acquired by the surfaces on contact is reduced at higher gas pressures.
B A Kwetkus, K Sattler, H -C Siegmann
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Air Breakdown in Contact Electrification
2022Contact electrification of solids in a gas medium involves two stages, i.e., surface charge deposition immediately at separation, and dissipation due to dielectric breakdown of the medium as the gap increases. The presumption that such gas breakdown obeys Paschen's law, which is conventionally determined for gas between electrodes with constant charge ...
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An adhesion model for contact electrification
International Journal of Mechanical SciencesYang Xu, Shuo Wu, Yudong Zhu, Jun Wu
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Contact electrification of dielectric solids
Journal of Electrostatics, 1978Abstract The main questions of the basic concept dealing with contact electrification of dielectric solids are summarized. Recent results which have a direct bearing on static electrification of polymer solids are reviewed. Differences between equilibrium contact electrification, transient contact electrification, and steady-state contact ...
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Contact Electrification and Adhesion Between Dissimilar Materials
Science, 1992Simultaneous measurements of surface force and surface charge demonstrate strong attraction due to the spontaneous transfer of electrical charge from one smooth insulator (mica) to another (silica) as a result of simple, nonsliding contact in dry nitrogen.
R G, Horn, D T, Smith
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Thermionic return currents in contact electrification
Journal of Applied Physics, 1977It is demonstrated that the contact electrification process is generally a nonequilibrium phenomenon. The electrochemical potential is considered for the case of ion transfer between insulators. It is shown that the thermionic return currents are significantly dependent on the physical separation and the dielectric constants of the materials.
F. R. Ruckdeschel, L. P. Hunter
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Contact electrification induced mechanoluminescence
Nano Energy, 2022Wenxiang Wang +5 more
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Contact electrification of alkali halides
Journal of Electrostatics, 1993Abstract A recently cleaned metal transfers strong positive charge to the surface of an alkali halide crystal. But a metal which has made several (3–30) previous contacts to the alkali halide transfers a much smaller and usually negative charge.
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Contact electrification of corona-treated polyethylenes
Journal of Electrostatics, 1981Abstract The influence of the corona treatment dose on the contact electrification characteristics of unfilled low density (LDPE) and TiO 2 -filled medium density (MDPE) polyethylene films was determined by measuring the surface charge after contact with a biased gold counterelectrode.
M. Selders +3 more
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