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Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/128008
Título

Runaway electrification of friable self-replicating granular matter

AutorCartwright, Julyan H. E.; Escribano, Bruno; Grothe, Hinrich; Piro, Oreste ; Sainz-Díaz, C. Ignacio; Tuval, Idan
Palabras claveSecondary nuclei
Solar nebula
Secondary nucleation
Laboratory experiments
Granular matter
Dynamical model
Environmental scanning electron microscopes
Fission process
Fecha de publicación6-sep-2013
EditorAmerican Chemical Society
CitaciónLangmuir : the ACS journal of surfaces and colloids 29(41): 12874-12878 (2013)
ResumenWe establish that the nonlinear dynamics of collisions between particles favors the charging of an insulating, friable, self-replicating granular material that undergoes nucleation, growth, and fission processes; we demonstrate with a minimal dynamical model that secondary nucleation produces a positive feedback in an electrification mechanism that leads to runaway charging. We discuss ice as an example of such a self-replicating granular material: We confirm with laboratory experiments in which we grow ice from the vapor phase in situ within an environmental scanning electron microscope that charging causes fast-growing and easily breakable palmlike structures to form, which when broken off may form secondary nuclei. We propose that thunderstorms, both terrestrial and on other planets, and lightning in the solar nebula are instances of such runaway charging arising from this nonlinear dynamics in self-replicating granular matter. © 2013 American Chemical Society.
Versión del editorhttp://dx.doi.org/10.1021/la402567h
URIhttp://hdl.handle.net/10261/128008
DOI10.1021/la402567h
Identificadoresdoi: 10.1021/la402567h
issn: 0743-7463
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