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Article Dans Une Revue Physical Review Letters Année : 2008

Poisson's Ratio and the Densification of Glass under High Pressure

Alain Moréac
H. Ji
  • Fonction : Auteur
Tahar Hammouda

Résumé

Because of a relatively low atomic packing density, (Cg) glasses experience significant densification under high hydrostatic pressure. Poisson's ratio ( ) is correlated to Cg and typically varies from 0.15 for glasses with low Cg such as amorphous silica to 0.38 for close-packed atomic networks such as in bulk metallic glasses. Pressure experiments were conducted up to 25 GPa at 293 K on silica, soda-lime-silica, chalcogenide, and bulk metallic glasses. We show from these high-pressure data that there is a direct correlation between and the maximum post-decompression density change.
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hal-00725145 , version 1 (13-01-2022)

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Tanguy Rouxel, Alain Moréac, H. Ji, Tahar Hammouda. Poisson's Ratio and the Densification of Glass under High Pressure. Physical Review Letters, 2008, 100 (22), pp.225501. ⟨10.1103/PhysRevLett.100.225501⟩. ⟨hal-00725145⟩
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