STRUCTURE AND EVOLUTION OF DIFFERENT ICE SURFACES AT LOW TEMPERATURE ADSORPTION STUDIESReport as inadecuate




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Abstract : N2 and Ar adsorption measurements at 77K and 87K are done on different types of ice powders. A strong dipole field is found at the surface of crushed hexagonal Ice and this polar nature persist after annealing at higher temperature, despite of a very large decrease in surface area. For amorphous ice obtained by vapour deposition at 77K, a very porous structure is found. The basic mechanism for its formation seems to be a random aggregation of H2O molecules together with annealing effects depending on both condensation rate and temperature.





Author: B. Schmitt J. Ocampo J. Klinger

Source: https://hal.archives-ouvertes.fr/



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