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  Double origin of stochastic granular tribocharging

Haeberle, J., Schella, A., Sperl, M., Schröter, M., & Born, P. (2018). Double origin of stochastic granular tribocharging. Soft Matter, 14, 4987-4995. doi:10.1039/c8sm00603b.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0001-6DAF-1 Version Permalink: http://hdl.handle.net/21.11116/0000-0003-E846-9
Genre: Journal Article

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 Creators:
Haeberle, J., Author
Schella, André1, Author              
Sperl, M., Author
Schröter, Matthias2, Author              
Born, P., Author
Affiliations:
1Department of Dynamics of Complex Fluids, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society, ou_2063299              
2Group Statistical mechanics of granular media, Department of Dynamics of Complex Fluids, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society, ou_2063310              

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 Abstract: The mechanisms underlying triboelectric charging have a stochastic nature. We investigate how this randomness affects the distributions of charges generated on granular particles during either a single or many collisions. The charge distributions we find in our experiments are more heavy-tailed than normal distributions with an exponential decay of the probability, they are asymmetric, and exhibit charges of both signs. Moreover, we find a linear correlation between the width and mean of these distributions. We rationalize these findings with a model for triboelectric charging which combines stochastic charge separation during contact and stochastic charge recombination after separation of the surfaces. Our results further imply that subsequent charging events are not statistically independent.

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Language(s): eng - English
 Dates: 2018-06-012018
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1039/c8sm00603b
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Title: Soft Matter
Source Genre: Journal
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Pages: - Volume / Issue: 14 Sequence Number: - Start / End Page: 4987 - 4995 Identifier: -