Crushing strength of porous ice-mineral bodies-relevance for comets

Details Crushing strength of porous ice-mineral bodies-relevance for comets Crushing strength of porous ice-mineral bodies-relevance for comets

Dec 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994adspr..14..207t&link_type=abstract

Advances in Space Research, Volume 14, Issue 12, p. 207-216.

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Scientific paper

In laboratory investigations with fluffy, highly porous ice and ice-dust bodies a new mechanism could be identified which strengthens the porous bodies. The process takes place under isothermal conditions and leads to the formation of ice bridges between the ice (dust) particles. It is driven solely by the dependence of the partial pressure of water vapour on the curvature of the particles. This mechanism is generally called ``sintering''. A theory for the crushing strength of a porous ice and ice-dust agglomerate is developed which describes the experimental results on isothermal changes is strength due to sintering quantitatively well. The relevance for the evolution of comets is discussed.

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