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Electrostatic Fragmentation of Dust Particles in Laboratory

Published online by Cambridge University Press:  07 August 2017

J. Svestka  and
E. Grün
J. Svestka
Affiliation:
Prague Observatory, 11846 Prague 1, Czechoslovakia
E. Grün
Affiliation:
Prague Observatory, 11846 Prague 1, Czechoslovakia

Abstract

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Experimental laboratory work on simulation of the electrostatic fragmentation was started with loosely bound Al2O3 particles of 1 to 10 micrometers size. These particles were suspended in an electrodynamic quadrupole inside a vacuum chamber and electrically charged by ion beams of energies up to 5 keV. The electrostatic fragmentation was observed and derived tensile strengths of the particles range from 103 to 105 Pa what is compatible with theoretical estimates. A dependence of the tensile strength on the size of particles has been found. This dependence can be well fitted by inverse square power law.

Type
Basic Studies
Information
Symposium - International Astronomical Union , Volume 150: Astrochemistry of Cosmic Phenomena , 1992 , pp. 17 - 18
Copyright
Copyright © Kluwer 1992 

References

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